Dell Latitude 5491 and 5591

I'm wondering if they got rid of the 35W down-rating in return for the bigger PSU. My 5470 is fast enough, but definitely just a little bit slower than my old work M5510 with the same i7-6820HQ.

I'd love a 6-cell battery option in return for losing the 2.5" drive, but I don't see it happening. The dGPU version of the E5470 was a really different internal layout, and I can see that being plausible for this one as well.

Regardless, I'm pretty psyched on finally getting 6-cores in a reasonably portable machine with a tolerably small PSU. Competition-wise it's kind of a pity Lenovo seems to be be ending the T4x0p series or at least skipping a generation, but I've always preferred Dell's ergonomics and I've got a lot of compatible power adapters going back to my D620.

 

The manual/spec pdfs were posted by Dell last night. 35W cTDP. It's also quite obvious the boards for the IGP and dGPU are different, since the dGPU board also get a HDMI 2.0 output (likely from a DP-->HDMI converter chip), compared to the native Intel HDMI 1.4. So it's not just TB3 that the dGPU model gets. The dGPU being limited to M.2 also appears to be just a configurator limitation. Unless if the SATA port is missing altogether, there doesn't appear to be any dimensional obstruction from the board.

In the service manual, I am happy to see they didn't just make everything accessible from the bottom (unlike my E5450), rather they also (seemingly) unified the top tray to the "main chassis," and use an internal "brace" to hold the rest in. Fewer plastic clips in a design, the better (IMO).


EDIT: I didn't know that about the E5470 dGPU layout. Nice to know. I would also love to see a bigger battery option.

wow, the E5470 had three motherboards. U series with IGP and 2DIMM. U series with dGPU and 1 DIMM. H series with dGPU and 2DIMM.

So Dell has had some odd pairings, before. The only H variant Skylake I could find was an i3. The others were HQ and HK quad cores, but the E5470 manual specifically states dual cores.


EDIT2: So you can probably tell by now that I read your post in three parts, and am posting my reply in three parts. Lenovo wants to make ultrabooks, so I doubt the p series will ever return. The T5xx line obviously will still have P5xS analogs, but the 14" laptops are what I am really interested in (mostly because decent 12/13 inch laptops that aren't MacBook Air clones are really hard to find).

The p series was basically Lenovo's way to quieting the protests against using ULV chips in the regular T440 (iirc, it was the t440). Now that ULV chips have long since become the "normal" chips, and despite the U series quad cores being laughably constrained, Lenovo no longer feels the pressure to keep the p variants in the lineup.


Either way, congratulations on your choice. I guess the random shutoff issues still plagued your E5470?

 

The E5470 has been flawless for a couple of days since I replaced the battery. I've actually been using it in preference to the generation newer XPS because the ergonomics are so much better. It's getting a little long in the tooth, but I'm not in a big rush to replace it as long as the shutdowns don't come back.

The XPS was always supposed to be mainly a media/gaming machine and for the (long) while this one was having the shutdown problems I wasn't comfortable letting my kids borrow the XPS.

I'll need to look at the 5491 manual -- I tend to be rough on keyboards and up to now, the Latitudes I've had have all been pretty easy to replace the keyboards on. Your description makes me worry that this has gone to requiring a motherboard removal. Given the lack of other good options, I don't know that it's enough to keep me from getting one of these.

I don't recall ever seeing a skylake dual-core i5-6xxxH -- the 6300HQ and 6440HQ are the only two I remember. There was also an H - IGP-only, 2DIMM -- that's what I've got. dGPU doesn't play very nicely with Linux, and it was really nice to get something able to run on 65W adapters at full power. 90W is still an improvement over the M55x0 and XPS 15, with 130W minimum even on the IGP-only models.

Yeah, the T440p-T470p were always kind of unloved models, when they wanted to push people wanting a higher power machine to the W and later P series. Sadly, with the 5491/5591 now being their own models and not just a configuration of the mainstream one, I see this going that way -- I'm sure Dell would rather I buy a pricier XPS/Precision to get the bigger CPU that I need for work.

 

EDIT: removed a long commentary on ultrabooks ruining laptops.

I'm glad to hear it works with the new battery! Something I found in the 5491 manual: regular batteries sold by Dell have a rating of 300 charge cycles. The Long Life battery they sell is rated at 1000 charge cycles.

I would spend the money on a Precision, but they are all so massive! Even the 5530 (XPS15-based) is at least an inch wider and slightly heavier than my already 4lbs, 6oz laptop (E5450).

As for the KB, it appears to be the same as my E5450. Remove the trim from the top and unscrew it. Well, remove the battery first, because of the obvious and also because the ribbon cable is under the battery. Thankfully, not a nightmare like the current, riveted Apple MacBook Pro keyboards. I am also a bit rough on KB, a habit borne of the stiff KB in my old Thinkpad 310ED and the Vaio in my signature. That Vaio had a very unresponsive KB (most people online think the Vaio KB is breaks easily - I disagree, it simply becomes less responsive). However, if I commit to strong keystrokes (like an old Remington Typewriter), it suddenly becomes 100% responsive. It simply took a lot of force to get through the mush. So that bad habit has continued onto my E5450. I actually was a soft typer when I had an Alienware M11x (before the Vaio)!

Pertaining to the configurations, I am somewhat annoyed that the PDF manual of the E5470 is not 100% accurate. Similarly, the E5450 Partner spec sheet listed a 62Whr battery that never became available (it also listed 35w cTDP quads that I never saw). Luckily, a later Latitude (5460? 5470?) 62Whr battery was compatible, save a different battery connector cable. I actually bought my E5450 configuration by googling the configuration I wanted, which presented me a link to the Dell configurator that exposed the dGPU option. That dGPU option was not in any of the ~12 configurations they had at that time. Similarly, the 5490 has 15 configurations on the Dell USA website, of which only 2 can be optioned with the MX130.


I know you are looking for a decent performing Linux laptop of good quality, but with the advent of the U series quad cores, why not a regular 5490? The cooling system doesn't look all that different (though the manual can lie, as noted earlier; the E5450 manual does state the dGPU model and the IGP model get different HSF assemblies, a comment omitted on all later versions of the manual I have seen). Also, I too, used to run Linux on my laptop (especially older laptops, like my Vaio, were converted to Ubuntu LTS). Nowadays, most of what I need out of Linux is accessible via the Windows Subsystem for Linux (MSFT built in Linux support), and installing Ubuntu from the Microsoft Store (distros based on SUSE and RedHat are also available, though RH itself is not). It natively runs bash terminal (for Ubuntu) in Windows, not via a VM. Nowadays, we no longer need an Xbox account to download from the Microsoft store. Admittedly, all I use Ubuntu/bash for is git, ssh, and clang...

 

I'm with you on that.

I'm reasonably happy with the XPS 15, other than the power brick, the keyboard, and the clickpad. The dGPU doesn't play well with Linux, but it runs ignoring it as long as I don't care about battery life.

Thanks for confirming that!

I've never much looked at the docs for specs, as I've either had access to Premier for new machines, or been ordering from outlet (more usually) and stuck making the best of what they have in stock.

Going by my wife's E7490, I don't see that it would be any step up from the E5470. It might actually be a little slower. It would certainly be an adequate replacement for this, but if I'm going to upgrade, it's for the substantially better performance of two more cores.

I'm trying hard to get away from Windows for day to day use. Other than gaming, Linux on the right hardware should work just as well (although getting decent battery life out of it has been a challenge.)

For work I tend to have a constellation of microservices each running in a docker container, and Windows docker (which uses Hyper-V VMs) is a very heavy, ugly solution compared to natively under Linux. I actually sometimes just run one Linux VM for all my services, with

My actual development work is 90%+ Java and the JVM + IntelliJ will run on just about everything, but our whole deployment infrastructure assumes it's running on Linux/Docker.

 

Update: my work has ordered a pretty much top-spec 5491 for me, and when it arrives around the end of the month I'll have a more detailed review and an interior picture.

 

Yes, please! We would all appreciate it.

 

Just arrived today.

Pics to come. Initial impressions, running Linux (work is 100% Linux or Mac, so didn't bother with a Windows license):
1) The fan profile is very agressive at coming on under light , and slightly higher pitched than the 5470 I've been using day to day. I'm a little worried about annoying coworkers.
2) It throttles quickly. ("CPU0: Core temperature above threshold, cpu clock throttled") even under light load, and drops to about 3.3ghz on all 6 cores, but that's still a lot better than the E5470 speed-wise; if it were my own machine I'd be tempted to repaste.
3) The SSD is a Toshiba XG5. Seems decent.
4) I did not hit the panel lottery; it's BOE made, and neither as bright nor as contrasty nor as sharp as the LG panel in my E5470. It's tolerable, though, and the viewing angles are nice and wide.
5) The chassis/ergonomics are almost identical to the E5470. None of the changes are very interesting:
a) If it's any thinner, it's not noticeable.
b) Docking port is gone (already was on the 5480, no?).
c) It's still got 3X USB-A superspeed; the USB-C (no Thunderbolt on mine) is additional, in the far back right corner.
d) No smart card slot.
e) VGA moved around from the back to the right side, and the SD card slot swapped sides to the left.
f) Other than the lack of a model designation (which was on the lower left corner of the keyboard shield) the keyboard and palm rest are exactly identical to the E5470. Still feels very nice compared to the shorter-travel Precision/XPS keyboards, and it still has a hard PgUp/PgDn.
g) (edit) two other very minor differences, for completeness: the bottom edges are more rounded rather than angled, and the three small LEDs for power, external AC attachment and HDD activity have been replaced with a single longer LED.

lsusb output:

Spoiler

Bus 002 Device 004: ID 0424:5534 Standard Microsystems Corp. Hub
Bus 002 Device 003: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit Ethernet Adapter
Bus 002 Device 002: ID 0424:5537 Standard Microsystems Corp.
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 0bda:4014 Realtek Semiconductor Corp.
Bus 001 Device 008: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 007: ID 04b4:2005 Cypress Semiconductor Corp.
Bus 001 Device 004: ID 0424:2134 Standard Microsystems Corp. Hub
Bus 001 Device 002: ID 0424:2137 Standard Microsystems Corp.
Bus 001 Device 005: ID 8087:0aaa Intel Corp.
Bus 001 Device 003: ID 1bcf:2b96 Sunplus Innovation Technology Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci output:

Spoiler

Bus 002 Device 004: ID 0424:5534 Standard Microsystems Corp. Hub
Bus 002 Device 003: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit Ethernet Adapter
Bus 002 Device 002: ID 0424:5537 Standard Microsystems Corp.
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 006: ID 0bda:4014 Realtek Semiconductor Corp.
Bus 001 Device 008: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 007: ID 04b4:2005 Cypress Semiconductor Corp.
Bus 001 Device 004: ID 0424:2134 Standard Microsystems Corp. Hub
Bus 001 Device 002: ID 0424:2137 Standard Microsystems Corp.
Bus 001 Device 005: ID 8087:0aaa Intel Corp.
Bus 001 Device 003: ID 1bcf:2b96 Sunplus Innovation Technology Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

dmidecode output:

Spoiler

dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 3.1.1 present.
Table at 0x000E7250.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
Vendor: Dell Inc.
Version: 1.1.6
Release Date: 05/16/2018
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 32 MB
Characteristics:
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
Smart battery is supported
BIOS boot specification is supported
Function key-initiated network boot is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 1.1

Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Dell Inc.
Product Name: Latitude 5491
Version: Not Specified
Wake-up Type: Power Switch
SKU Number: 0818
Family: Latitude

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
Manufacturer: Dell Inc.
Product Name: 0VGJ22
Version: A00
Asset Tag: Not Specified
Features:
Board is a hosting board
Board is replaceable
Location In Chassis: Not Specified
Chassis Handle: 0x0003
Type: Motherboard
Contained Object Handles: 0

Handle 0x0003, DMI type 3, 22 bytes
Chassis Information
Manufacturer: Dell Inc.
Type: Notebook
Lock: Not Present
Version: Not Specified
Boot-up State: Safe
Power Supply State: Safe
Thermal State: Safe
Security Status: None
OEM Information: 0x00000000
Height: Unspecified
Number Of Power Cords: 1
Contained Elements: 0
SKU Number: Notebook


Handle 0x0004, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JDOCK1
Internal Connector Type: None
External Reference Designator: DOCK
External Connector Type: Other
Port Type: None

Handle 0x0005, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JCRT1
Internal Connector Type: None
External Reference Designator: CRT
External Connector Type: Other
Port Type: Video Port

Handle 0x0006, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JHDMI
Internal Connector Type: None
External Reference Designator: HDMI
External Connector Type: Other
Port Type: Video Port

Handle 0x0007, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JSD1
Internal Connector Type: None
External Reference Designator: Cardreader
External Connector Type: Other
Port Type: None

Handle 0x0008, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JLOM1
Internal Connector Type: None
External Reference Designator: Network
External Connector Type: RJ-45
Port Type: Network Port

Handle 0x0009, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JUSB1
Internal Connector Type: None
External Reference Designator: USB1
External Connector Type: Access Bus (USB)
Port Type: USB

Handle 0x000A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JUSB2
Internal Connector Type: None
External Reference Designator: USB2
External Connector Type: Access Bus (USB)
Port Type: USB

Handle 0x000B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JUSB3
Internal Connector Type: None
External Reference Designator: USB3
External Connector Type: Access Bus (USB)
Port Type: USB

Handle 0x000C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JHP1
Internal Connector Type: None
External Reference Designator: Audio Jack
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port

Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JSIM1
Internal Connector Type: None
External Reference Designator: SIM Card
External Connector Type: Other
Port Type: Other

Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JEDP1
Internal Connector Type: None
External Reference Designator: Camera
External Connector Type: Other
Port Type: Other

Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JFP1
Internal Connector Type: None
External Reference Designator: Finger Print sensor
External Connector Type: Other
Port Type: Other

Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JSC1
Internal Connector Type: None
External Reference Designator: Smart Card
External Connector Type: Other
Port Type: Other

Handle 0x0011, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JeDP1 - eDP
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0012, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JNGFF1 - WLAN/BT/Wigig CONN
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JNGFF2 - WLAN/LTE CONN
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JNGFF3 - HDD
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JKBTP1 - Keyboard
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Keyboard Port

Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JFAN1 - CPU FAN
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JUSH1 - USH CONN
Internal Connector Type: None
External Reference Designator: Not Specified
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0018, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JSPK1 - Speaker
Internal Connector Type: Mini Jack (headphones)
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Audio Port

Handle 0x0019, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JXDP1 - CPU XDP Port
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x001A, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JAPS1 - Automatic Power
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x001B, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JSPI1 - SPI PORT
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x001C, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JLPDE1 - 80 PORT
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x001D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JDEG1 - Debug PORT
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x001E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JLED1 - LED
Internal Connector Type: None
External Reference Designator: Not Specifiedort Connector Information
Internal Reference Designator: JRTC1 - RTC
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0020, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JCS1 - RFID/NFC
Internal Connector Type: None
External Reference Designator: Not Specified
External Connector Type: None
Port Type: Other

Handle 0x0021, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: JSATA1 - SATA3 CONN
Internal Connector Type: SAS/SATA Plug Receptacle
External Reference Designator: Not Specified
External Connector Type: None
Port Type: SATA

Handle 0x0022, DMI type 9, 17 bytes
System Slot Information
Designation: J6B2
Type: x16 PCI Express
Current Usage: In Use
Length: Long
ID: 0
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:00:01.0

Handle 0x0023, DMI type 9, 17 bytes
System Slot Information
Designation: J6B1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 1
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:00:1c.3

Handle 0x0024, DMI type 9, 17 bytes
System Slot Information
Designation: J6D1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 2
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported

External Connector Type: None
Port Type: Other

Handle 0x001F, DMI type 8, 9 bytes
Bus Address: 0000:00:1c.4

Handle 0x0025, DMI type 9, 17 bytes
System Slot Information
Designation: J7B1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 3
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:00:1c.5

Handle 0x0026, DMI type 9, 17 bytes
System Slot Information
Designation: J8B4
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 4
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:00:1c.6

Handle 0x0027, DMI type 9, 17 bytes
System Slot Information
Designation: J8D1
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 5
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:00:1c.7

Handle 0x0028, DMI type 9, 17 bytes
System Slot Information
Designation: J8D2
Type: x1 PCI Express
Current Usage: Available
Length: Short
ID: 6
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported ID: 7
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported
Bus Address: 0000:00:1e.0

Handle 0x002A, DMI type 10, 6 bytes
On Board Device Information
Type: Video
Status: Enabled
Description: "Intel HD Graphics"
Bus Address: 0000:00:1d.0

Handle 0x0029, DMI type 9, 17 bytes
System Slot Information
Designation: J8B3
Type: 32-bit PCI
Current Usage: Available
Length: Short

Handle 0x002B, DMI type 11, 5 bytes
OEM Strings

Handle 0x002D, DMI type 15, 35 bytes
System Event Log
Area Length: 4 bytes
Header Start Offset: 0x0000
Header Length: 2 bytes
Data Start Offset: 0x0002
Access Method: Indexed I/O, one 16-bit index port, one 8-bit data port
Access Address: Index 0x046A, Data 0x046C
Status: Invalid, Not Full
Change Token: 0x00000000
Header Format: No Header
Supported Log Type Descriptors: 6
Descriptor 1: End of log
Data Format 1: OEM-specific
Descriptor 2: End of log
Data Format 2: OEM-specific
Descriptor 3: End of log
Data Format 3: OEM-specific
Descriptor 4: End of log
Data Format 4: OEM-specific
Descriptor 5: End of log
Data Format 5: OEM-specific
Descriptor 6: End of log
Data Format 6: OEM-specific

Handle 0x002E, DMI type 21, 7 bytes
Built-in Pointing Device
Type: Touch Pad
Interface: Bus Mouse
Buttons: 2

Handle 0x0033, DMI type 25, 9 bytes
System Power Controls
Next Scheduled Power-on: *-* 00:00:00

Handle 0x0034, DMI type 32, 20 bytes
System Boot Information
Status: No errors detected

Handle 0x0035, DMI type 34, 11 bytes
Management Device
Description: LM78-1
Type: LM78
Address: 0x00000000
Address Type: I/O Port

Handle 0x0037, DMI type 36, 16 bytes
Management Device Threshold Data
Lower Non-critical Threshold: 1
Upper Non-critical Threshold: 2
Lower Critical Threshold: 3
Upper Critical Threshold: 4
Lower Non-recoverable Threshold: 5
Upper Non-recoverable Threshold: 6

Handle 0x0039, DMI type 36, 16 bytes
Management Device Threshold Data
Lower Non-critical Threshold: 1
Upper Non-critical Threshold: 2
Lower Critical Threshold: 3
Upper Critical Threshold: 4
Lower Non-recoverable Threshold: 5
Upper Non-recoverable Threshold: 6

Handle 0x003B, DMI type 36, 16 bytes
Management Device Threshold Data

Handle 0x0041, DMI type 255, 8 bytes
OEM-specific Type

Handle 0x0042, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 16 GB
Error Information Handle: Not Provided
Number Of Devices: 2

Handle 0x0043, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0042
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: SODIMM
Set: None
Locator: DIMM A
Bank Locator: Not Specified
Type: DDR4
Type Detail: Synchronous
Speed: 2667 MT/s
Rank: 2
Configured Clock Speed: 2667 MT/s
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: 1.2 V

Handle 0x0044, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0042
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: SODIMM
Set: None
Locator: DIMM B
Bank Locator: Not Specified
Type: DDR4
Type Detail: Synchronous
Speed: 2667 MT/s
Rank: 2
Configured Clock Speed: 2667 MT/s
Minimum Voltage: Unknown
Maximum Voltage: Unknown
Configured Voltage: 1.2 V

Handle 0x0045, DMI type 19, 31 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x007FFFFFFFF
Range Size: 32 GB
Physical Array Handle: 0x0042
Partition Width: 2

Handle 0x004B, DMI type 7, 27 bytes
Cache Information
Socket Designation: L1 Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 0 kB
Maximum Size: 0 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Parity
System Type: Unified
Associativity: 8-way Set-associative

Handle 0x004C, DMI type 7, 27 bytes
Cache Information
Socket Designation: L2 Cache
Configuration: Enabled, Not Socketed, Level 2
Operational Mode: Write Back
Location: Internal
Installed Size: 0 kB
Maximum Size: 0 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Unified
Associativity: 4-way Set-associative

Handle 0x004D, DMI type 7, 27 bytes
Cache Information
Socket Designation: L3 Cache
Configuration: Enabled, Not Socketed, Level 3
Operational Mode: Write Back
Location: Internal
Installed Size: 0 kB
Maximum Size: 0 kB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Multi-bit ECC
System Type: Unified
Associativity: 12-way Set-associative

Handle 0x004E, DMI type 4, 48 bytes
Processor Information
Socket Designation: U3E1
Type: Central Processor
Family: Core i7
Manufacturer: Intel(R) Corporation
ID: EA 06 09 00 FF FB EB BF
Signature: Type 0, Family 6, Model 158, Stepping 10
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Multi-threading)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: Intel(R) Core(TM) i7-8850H CPU @ 2.60GHz
Voltage: 1.0 V
External Clock: 100 MHz
Max Speed: 2600 MHz
Current Speed: 4000 MHz
Status: Populated, Enabled
Upgrade: Other
L1 Cache Handle: 0x004B
L2 Cache Handle: 0x004C
L3 Cache Handle: 0x004D
Serial Number: To Be Filled By O.E.M.
Asset Tag: To Be Filled By O.E.M.
Part Number: To Be Filled By O.E.M.
Core Count: 6
Core Enabled: 6
Thread Count: 12
Characteristics:
64-bit capable
Multi-Core
Hardware Thread
Execute Protection
Enhanced Virtualization
Power/Performance Control

Handle 0x004F, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x003FFFFFFFF
Range Size: 16 GB
Physical Device Handle: 0x0043
Memory Array Mapped Address Handle: 0x0045
Partition Row Position: 1
Interleave Position: 1
Interleaved Data Depth: 1

Handle 0x0050, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00400000000
Ending Address: 0x007FFFFFFFF
Range Size: 16 GB
Physical Device Handle: 0x0044
Memory Array Mapped Address Handle: 0x0045
Partition Row Position: 1
Interleave Position: 2
Interleaved Data Depth: 1

Handle 0x0300, DMI type 126, 22 bytes
Inactive

Handle 0x1600, DMI type 22, 26 bytes
Portable Battery
Location: Sys. Battery Bay
Manufacturer: Samsung SDI
Manufacture Date: 04/02/2018
Serial Number: 8471
Name: DELL MT31P84
Design Capacity: 67990 mWh
Design Voltage: 7600 mV
SBDS Version: 1.0
Maximum Error: 100%
SBDS Chemistry: LION

Handle 0x1604, DMI type 43, 31 bytes
TPM Device
Vendor ID:
Specification Version: 2.0 Firmware Revision: 7.1
Description: NUVOTON Characteristics:
Family configurable via platform software support

Handle 0x1B00, DMI type 27, 15 bytes
Cooling Device
Temperature Probe Handle: 0x1C00
Type: Chip Fan
Status: OK
Nominal Speed: 5300 rpm
Description: CPU Fan

Handle 0x1C00, DMI type 28, 22 bytes
Temperature Probe
Description: CPU Probe
Location: Motherboard
Status: OK
Maximum Value: 127.0 deg C
Minimum Value: -127.0 deg C
Resolution: 1.000 deg C
Tolerance: Unknown
Accuracy: Unknown
Nominal Value: 10.0 deg C

Handle 0x1C01, DMI type 28, 22 bytes
Temperature Probe
Description: True Ambient
Location: Motherboard
Status: OK
Maximum Value: 127.0 deg C
Minimum Value: -127.0 deg C
Resolution: 1.000 deg C
Tolerance: Unknown
Accuracy: Unknown
Nominal Value: 10.0 deg C

Handle 0x1C02, DMI type 28, 22 bytes
Temperature Probe
Description: Memory Module
Location: Motherboard
Status: OK
Maximum Value: 127.0 deg C
Minimum Value: -127.0 deg C
Resolution: 1.000 deg C
Tolerance: Unknown
Accuracy: Unknown
Nominal Value: 10.0 deg C

Handle 0x1C03, DMI type 28, 22 bytes
Temperature Probe
Description: Other Probe
Location: Processor
Status: OK
Maximum Value: 127.0 deg C
Minimum Value: -127.0 deg C
Resolution: 1.000 deg C
Tolerance: Unknown
Accuracy: Unknown
Nominal Value: 10.0 deg C

Handle 0xF030, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 1
Bus Address: 0000:00:00.0

Handle 0xF031, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Video
Type: Video
Status: Enabled
Type Instance: 1
Bus Address: 0000:00:02.0

Handle 0xF032, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 2
Bus Address: 0000:00:04.0

Handle 0xF033, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 3
Bus Address: 0000:00:08.0

Handle 0xF034, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 4
Bus Address: 0000:00:12.0

Handle 0xF035, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 5
Bus Address: 0000:00:14.0

Handle 0xF036, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 6
Bus Address: 0000:00:14.2

Handle 0xF037, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Ethernet
Type: Ethernet
Status: Enabled
Type Instance: 1
Bus Address: 0000:00:14.3

Handle 0xF038, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 7
Bus Address: 0000:00:15.0

Handle 0xF039, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 8
Bus Address: 0000:00:15.1

Handle 0xF03A, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 9
Bus Address: 0000:00:16.0

Handle 0xF03B, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - SATA
Type: SATA Controller
Status: Enabled
Type Instance: 1
Bus Address: 0000:00:17.0

Handle 0xF03C, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 10
Bus Address: 0000:00:1f.0

Handle 0xF03D, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Sound
Type: Sound
Status: Enabled
Type Instance: 1
Bus Address: 0000:00:1f.3

Handle 0xF03E, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 11
Bus Address: 0000:00:1f.4

Handle 0xF03F, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Other
Type: Other
Status: Enabled
Type Instance: 12
Bus Address: 0000:00:1f.5

Handle 0xF040, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Onboard - Ethernet
Type: Ethernet
Status: Enabled
Type Instance: 2
Bus Address: 0000:00:1f.6

 

@mr_handy
Regarding your 1) you're not alone: https://www.dell.com/community/Lati...-on-AC-Power-Seems-clock-related/td-p/6102760

 

Pictures still need to be downloaded and serial numbers (and my work's asset tag) blurred out. Coming soon, I hope.

BIOS 1.2.5 is out. Doesn't seem to help with either throttling or fan volume.

I've applied a 105mV undervolt (and 50mV to the analogio and GPU) and it seems to be stable; this helped a bit with temperatures but I was still seeing throttling.

Using https://github.com/georgewhewell/undervolt -- I'd imagine XTU on Windows would produce similar results.

That said, the above wasn't enough to limit throttling.

I've started playing around with RAPL, and reducing the two turbo TDPs... the lower one ( constraint_0_power_limit_uw ) from 45W (45000000 uW as listed) to 42 and then 40W and the max turbo TDP from 60W to 55W and then 52W (constraint_1_power_limit_uw ; * 1,000,000 uW as listed) and it /seems/ to be throttling a whole lot less. If you want to play with these, just as root "find /sys -name constraint_0_power_limit_uw" and then cat to view or echo ... > to write to it.

I'd be curious if anyone has Windows on one of these if it shows 35W or 45W under XTU, and what the short term wattage -- I expected to see 56W on a 45W system, not 60!

XTU on the 5470 (with i7-6820HQ) on Windows can also increase the cTDP from 35 up to a maximum of the original processors's 45W limit. I can't figure out how to do that under Linux, but there's probably a way.