M6600 Owners Thread

When I remove those the BIOS reads 1600MHz. So it mustbe a problem between the modules.

 

If anyone is interested in buying 500 GB HDs see my post:
http://forum.notebookreview.com/com...fs-500gb-notebook-hds-dell-m6400-battery.html

 

Anybody know of a good sales rep to talk to? Or, if not appropriate, message me or let me know what direction or route to take? I just talked with a Dell sales rep that didn't know as much as my research taught me.

 

The problem persists. It doesn't matter how I arrange the modules; 2GB in Bank-A, 4GB Bank-B, 2GB Bank-C, 4GB Bank-D, or vice versa, I tried all possible arrangements. It keeps saying 1333MHz in BIOS. While I put only the pairs 2x2GB or only 2x4GB in the M6600 then the BIOS reads 1600MHz. So despite the modules are from the same manufacturer they do not work together with respect to timings. Probably I'm going to throw away the 2x2GB and buy another set of the Kingston HyperX.

 

The Kingston HyperX supports CAS latencies of 9,8,7,6. The ram that came with my M6600 is Kingston branded Hynix RAM and supports 9,8,7,6,5. This should not be a big deal since both of them are running at CAS 9 while in 1600mhz mode.

I have a set pair of Kingston HyperX 4gb sticks of RAM that I used in my M6500. I see the same behavior in my M6600 - if I try to mix them together I only see 1333 mhz. If I use the "old" 2010 HyperX ram separately from the "new" 2011 Kingston XMP3 1600S 9-12-B10 ram, each set will run at 1600mhz.

Looking at the older HyperX ram, it can run in two profiles -

(Info from the Kingston site)

"Kingston's KHX1600C9S3K2/8GX is a kit of two 512M x 64-bit
(4GB) DDR3-1600MHz CL9 SDRAM (Synchronous DRAM)
2Rx8 memory modules, based on sixteen 256M x 8-bit DDR3
FBGA components per module. Each module kit supports Intel®
XMP (Extreme Memory Profiles). Total kit capacity is 4GB.
Each module pair has been tested to run at DDR3-1600MHz at
a low latency timing of 9-9-9-27 at 1.5V. The SPDs are programmed
to JEDEC standard latency DDR3-1333MHz timing of
9-9-9 at 1.5V. Each 204-pin SODIMM uses gold contact fingers
and requires +1.5V. The JEDEC standard electrical and
mechanical specifications are as follows:

XMP TIMING PARAMETERS:
• JEDEC: DDR3-1333 CL9-9-9 @1.5V
• XMP Profile #1: DDR3-1333 CL7-7-7-20 @1.5V
• XMP Profile #2: DDR3-1600 CL9-9-9-27 @1.5V"

See those two Profiles above?

Profile 1 is the JEDEC profile for the Kingston HyperX ram in "Enthusiast / Certified Profile" mode that runs at 1333.
Profile 2 is the "Extreme Profile" mode that runs at 1600.

The Dell stock Kingston ram only has 1 profile and it is the "Enthusiast / Certified Profile". That profile is identical to the "Extreme Profile" of the HyperX.

No matter how the two sets of RAM are put in the machine, it appears that the M6600 sees that both sets of RAM have and "Enthusiast / Certified Profile", but only one stick has the "Extreme Profile". It then looks at the specs for the "Enthusiast / Certified Profile" and sees that one of them is set for 1,333mhz and one for 1,600mhz. It then defaults to the slower of the two speeds.

The Kingston JEDEC is programmable. They may be able to reprogram it for you. I don't know. I don't mess with JEDEC programming because there are too many ways to brick the RAM.

If you can return the RAM and get Kingston 1866mhz ram, it will work since the "Enthusiast / Certified Profile" for it is the same 1600mhz.

Sorry that it is not an easy fix, but at least we know why. Details below:

Dell stock Kingston RAM:

Enthusiast / Certified Profile [Enabled]
Module VDD Voltage Level: 1.40 V
CAS# Latencies Supported: 7, 8, 9
Minimum SDRAM Cycle Time (tCKmin): 1.250 ns (800.0 MHz)
Minimum CAS Latency Time (tAAmin): 11.250 ns
Minimum RAS# to CAS# Delay Time (tRCDmin): 11.250 ns
Minimum Row Precharge Delay Time (tRPmin): 11.250 ns
Minimum Active to Precharge Delay Time (tRASmin): 35.000 ns
Minimum CAS Write Latency Time (tCWLmin): 11.250 ns
Minimum Write Recovery Time (tWRmin): 15.000 ns
Minimum Active to Active/Refresh Delay Time (tRCmin): 46.250 ns
Maximum tREFI Time (Average Periodic Refresh Interval): 7.875 us
Minimum Refresh Recovery Delay Time (tRFCmin): 160.000 ns
Minimum Internal Read to Precharge Command Delay Time (tRTPmin): 7.500 ns
Minimum Row Active to Row Active Delay Time (tRRDmin): 6.000 ns
Minimum Four Activate Window Delay Time (tFAWmin): 30.0 ns
Minimum Internal Write to Read Command Delay Time (tWTRmin): 7.500 ns
Supported Module Timing at 800.0 MHz: 9-9-9-28
Read to Write CMD Turn-around Time Optimization: No adjustment
Write to Read CMD Turn-around Time Optimization: No adjustment
Back 2 Back CMD Turn-around Time Optimization: No adjustment
System Command Rate Mode: Default


Kingston HyperX RAM:

Enthusiast / Certified Profile [Enabled]
Module VDD Voltage Level: 1.50 V
CAS# Latencies Supported: 6, 7, 8, 9
Minimum SDRAM Cycle Time (tCKmin): 1.500 ns (666.7 MHz)
Minimum CAS Latency Time (tAAmin): 10.500 ns
Minimum RAS# to CAS# Delay Time (tRCDmin): 10.500 ns
Minimum Row Precharge Delay Time (tRPmin): 10.500 ns
Minimum Active to Precharge Delay Time (tRASmin): 30.000 ns
Minimum CAS Write Latency Time (tCWLmin): 10.000 ns
Minimum Write Recovery Time (tWRmin): 15.000 ns
Minimum Active to Active/Refresh Delay Time (tRCmin): 46.500 ns
Maximum tREFI Time (Average Periodic Refresh Interval): 7.875 us
Minimum Refresh Recovery Delay Time (tRFCmin): 160.000 ns
Minimum Internal Read to Precharge Command Delay Time (tRTPmin): 7.500 ns
Minimum Row Active to Row Active Delay Time (tRRDmin): 6.000 ns
Minimum Four Activate Window Delay Time (tFAWmin): 30.0 ns
Minimum Internal Write to Read Command Delay Time (tWTRmin): 7.500 ns
Supported Module Timing at 666.7 MHz: 7-7-7-20
Read to Write CMD Turn-around Time Optimization: No adjustment
Write to Read CMD Turn-around Time Optimization: No adjustment
Back 2 Back CMD Turn-around Time Optimization: No adjustment
System Command Rate Mode: Default

Extreme Profile [Enabled]
Module VDD Voltage Level: 1.50 V
CAS# Latencies Supported: 6, 7, 8, 9
Minimum SDRAM Cycle Time (tCKmin): 1.250 ns (800.0 MHz)
Minimum CAS Latency Time (tAAmin): 11.250 ns
Minimum RAS# to CAS# Delay Time (tRCDmin): 11.250 ns
Minimum Row Precharge Delay Time (tRPmin): 11.250 ns
Minimum Active to Precharge Delay Time (tRASmin): 33.750 ns
Minimum CAS Write Latency Time (tCWLmin): 10.000 ns
Minimum Write Recovery Time (tWRmin): 15.000 ns
Minimum Active to Active/Refresh Delay Time (tRCmin): 46.250 ns
Maximum tREFI Time (Average Periodic Refresh Interval): 7.875 us
Minimum Refresh Recovery Delay Time (tRFCmin): 160.000 ns
Minimum Internal Read to Precharge Command Delay Time (tRTPmin): 7.500 ns
Minimum Row Active to Row Active Delay Time (tRRDmin): 6.000 ns
Minimum Four Activate Window Delay Time (tFAWmin): 30.0 ns
Minimum Internal Write to Read Command Delay Time (tWTRmin): 7.500 ns
Supported Module Timing at 800.0 MHz: 9-9-9-27
Read to Write CMD Turn-around Time Optimization: No adjustment
Write to Read CMD Turn-around Time Optimization: No adjustment
Back 2 Back CMD Turn-around Time Optimization: No adjustment
System Command Rate Mode: Default

 

If anybody else in Europe is interested in aftermarket upgrading the WWAN broadband card:
I bought my broadband card as an original Dell spare part there:
WWAN 3G Dell 5550 UMTS HSDPA 7,2Mbs GPRS EDGE 2XGNJ | eBay

 

For who cares on how DeLL Support works, here are some updates about the (hopefully) last Chi Mei issue...

Today I was called by Luisa, a kind and gentle local DeLL employee. She told me my issue was being taken care of, but they didn't spare any AUOs or LGs LCD substitutes.

This is all nice and reassuring.

I then asked her if she could ask for the part to DeLL US, but she wasn't able to answer and she didn't knew how much I'm supposed to wait.

We'll see, I'll keep the M6600 Owners Thread posted.

 

Thanks Bokeh for your explanation. For me it's important to have a stable, worry free system, so I already ordered a new 8GB kit to have exact the same memory in all slots.

 

Will the IPS screen be matte or glossy?

 

Hi,
I tried to reinstall the OS on my SSD on my M6600. But when I enter the recovery application I just can choose to set it back to an earlier point in time.

What I want to do is get rid of all theese unnecessary DELL- Apps. How can I do this?

Thank you very much.