Precision 7530 & Precision 7730 owner's thread

Thank you for the info, Aaron !
Very kind of you.

Could you also try to click on "TPL" in order to see if turbo power limits are editable ?
If so, try these values:

Turbo Boost Long Power Max (PL1)=65W
Turbo Boost Short Power Max (PL2)=80W

Then try to apply -0.1 V to both "CPU Core" and "CPU Cache" and set multipliers like this
(even if throttlestop didn't let you modify power limits):

1 Core Active---->47
2 Cores Active--->46
3 Cores Active--->46
4 Cores Active--->45
5 Cores Active--->45
6 Cores Active--->44

a) Can you confirm that the above settings are max values possible ? I mean that "+4" is valid for every active core/s scenario at the same time right ?
b) Could you change multipliers values even if you didn't check "Overclock" box or checking it is mandatory in order to edit them ?

After all this, would it be possible for you to run for example Aida64 system stability test (Stress CPU only) for 5-10 minutes and using "CPUID HWMonitor" check these parameters ?:

1- Cores Frequencies
2- Cores Temperatures
3- Cpu Package Power Consumption
4- Cpu Tdp

Would be great if you can post a screenshot of every step you do.

I'm really interested if 8850h is capable to reach (and i hope to sustain) at least 4.5 GHz on 1/2 core(s) active.

At 4.6GHz 1 core and 4.5GHz 2 cores, 8850h would equal stock i7-8700 turbo values.

I really hope you help me !

 

I do not personally own this system so for now I will not be making any changes to voltage/CPU behavior. Maybe someone else can help with testing this. I will say that under the stock configuration, I cannot sustain over 3.9 GHz on full load.

 

Thank you Aaron !

I thought it was your own personal laptop you use at work, but anyway thanks again.

So it looks like power limits are editable too while stock ones are PL2=90W and PL1=60W (i thought they were something like 45/56 or 55/70 so no need to apply those i previously suggested you).

When you say that under stock configuration (so i think no undervolt + stock pl right ?) you couldn't go over 3.9GHz, were you referring to all 6 cores turbo boost ?

If so, what peak and sustained frequency can you reach under single core stress test only ?
What about 2 cores stress test ?

And for both single and 2 cores stress test, what temps are you getting ?

Could it be possible for you to check these values ?
I hope in your help !

 

The 3.9 GHz limit refers to any number of cores being stressed. I've observed it in both single-threaded and multi-threaded load. I can go higher than 4 GHz but only in short bursts, not during a sustained load. This is with no undervolting and stock thermal compound. Temperature does not go much above 85, that seems to be the throttle point. If you can reduce the temperature then you can increase the maximum speed (full turbo has been achieved by others with undervolting; I find it hard to believe that you would be able to sustain much higher than that).

 

Hi ! I'm interested in 7730 with your same cpu.
About screen, even if it's still under nbd warranty, i don't know if contacting dell to inquire panel change will work because technician may still replace it with another 45% panel as stock panel is 45% too.
Or he may do it but Dell may charge you something for this as going from 45% to 72% can be considered an "upgrade".
If still under warranty, just call them and see what they tell you about it.
If it's not, simply you have to buy the panel (pay attention to pin cable compatibilty) and perform the panel swap by yourself (if you fell comfortable in doing it) following images and instructions on dell service manual.

About throttlestop, if you read last posts by Aaron, he reported what settings he has on his 7530 at work with 8850h.
In my previous message, i quoted his power limit screenshot.
Here his FIVR settings----->http://forum.notebookreview.com/thr...0-owners-thread.820539/page-201#post-10882738

Would you be able to check it too ?
See what i posted here (http://forum.notebookreview.com/thr...0-owners-thread.820539/page-202#post-10883060) and try to do it.
Don't forget to post sreenshots !
Hope you can help !

Hi!

From what i've understood, you have 2 ram stick of 16gb each (let's call them R1 and R2) and after removing stock 8gb stick located on one of the slot under the back panel (let's say S1) you tried all the following configurations:

R1 on S1
R1 on S2 (the empty stock slot under back panel)
R2 on S1
R2 on S2

and no problem at all while stability issues come when both ram modules (regardless of brand used) are inserted into S1 and S2 (regardless of the order) right ?

Since you said that rams were correctly working on your friend's notebook, try to insert 8 gb stock ram only and then look for a bios update. After the update, remove the stock ram and put you 3200mhz rams sticks back on it again.

See also this post (http://forum.notebookreview.com/thr...30-owners-thread.820539/page-27#post-10767860) and previous ones if helpful for your problem.

Should i choose to go for 7730 xxn03 (it's a preassembled unit with 8850h+p3200+2x8gb @2666mhz)
i plan to add "crucial ct2k8g4sfs8266" for a total of 32gb, but those compatibility problems just scare me a bit.

On this post (http://forum.notebookreview.com/thr...0-owners-thread.820539/page-182#post-10856819) you mentioned you have 7730 with 8850h.

Also for you, if you have time, would you be able to check on your 7730 if it's possible to slighty overclock 8850h with throttlestop and see peak and sustained frequencies with temps under single/2cores/6cores load ? Hope in your help too !

 

Thanks Aaron for your reply.

On these posts:

http://forum.notebookreview.com/thr...0-owners-thread.820539/page-140#post-10819920
http://forum.notebookreview.com/thr...0-owners-thread.820539/page-141#post-10820088
http://forum.notebookreview.com/thr...0-owners-thread.820539/page-149#post-10823274

he was able to get with i9-8950hk (on 7530) stable 4.6ghz on single core and 4.2ghz as peak and 4ghz sustained on multicore load with -0.1 V undervolt without repaste.
With -0.145 V 4.2ghz sustained on all cores with no throttling.

On this other post:

http://forum.notebookreview.com/thr...0-owners-thread.820539/page-100#post-10796930

he was able to maintain all-clock turbo (so i guess 4.3 ghz as his 7730 has 8950hk) for 30minutes in 28 °C ambient with only -0.1 V undervolt.

I know that my cpu would just be 8850h instead of 8950hk but these experiences just give me hope that higher frequencies can be reached and sustained with undervolt only !

That's why i'm looking for somebody willing to see if using throttlestop, turbo boost values can really be changed and not suddenly brought back to stock ones due to firmware limitations (if any).

 

Hi.
I have 2 16GB modules of g-skill 3200 cl18 and 4 16GB modules hyperX 3200 CL20. It doesn't matter where I put first and second module (always from one brand - I don't mixing it) for example R1 to S2 and R2 to S4 or R1 to S1 and R2 to S2 in a while I get totaly freeze machine. The same if I occupy all 4 slots with the hyperx. My friend has a G5 dell and there rams work perfectly but i noticed that his laptop automaticly underclock its to 2666. He has gave me his 8GB stock stick and with my 8GB stick booth works without issues in my precision. I tried to set lower frequency in my 7730 but I have no possibility - bios always set its to 3200. Of course I have latest updates(bios chipset etc). So I called dell support and I heard that this laptop is not compatible with 3200 modules (WTF?) despite they have information on site about compatibility. At this moment I bought hyperx 2666 CL15 and we will see becouse also they told that only recoment stock dell modules(???). For me all is one big joke from dell in case 15K PLN workstation machine. At this moment I have 6 16GB 3200 modules which I cannot use...

From second hand I use trottlestop with -140mV settings without any problems and machine is noticeable faster (14200 in fire strike), colder and quieter during high loads so I can wholeheartedly recommend this application.

 

@xklis,

I own the Xeon E-2176M, with a base clock of 2.7 GHz and 6/4/2/1 boost clocks of 4.1/4.2/4.3/4.4 GHz respectively.

The CPU reaches 4.35 GHz under a CB20 single-core load (never precisely 4.4, because the OS has to run background processes, too), and the overall CPU package temperature in a 33 °C ambient room (welcome to a tropical, equatorial, highly built-up island) was around 75 °C.

I am planning to do a highly rigorous, thorough benchmark with this machine after I've got myself my 32 GB 3000 MHz CL16 RAM and the repaste. Definitely after this semester ends, though.

 

It's really strange what's happening to your 7730.

So you're saying that the only 2 ram sticks working configuration is when using
stock 7730 8GB + stock G5 8GB from your friend right ?
Both are 2666mhz but different brands ?

What if you try 7730 stock 8GB stick with one 16GB module (hyperx or gskill) and see if laptop works ?

I remember a video i watched on Jarrod's tech channel when he tried to upgrade his gigabyte aero 15 and even using compatible ram certified by gigabyte itself (he showed the list where they were mentioned) his notebook was not able to POST.
The only way to fix the problem is using stock ram stick with just another one on the other slot even if from a different brand !

Take a look at these also:
http://forum.notebookreview.com/thr...n-5520-7520-7720.800132/page-72#post-10808796
http://forum.notebookreview.com/thr...n-5520-7520-7720.800132/page-73#post-10808992
http://forum.notebookreview.com/thr...n-5520-7520-7720.800132/page-74#post-10818881

He claimed that even using certified dell ram bought from dell website, his 7520 didn't work !
Dell support eventually told him that only working modules were same exact as the ones already located in his 7520.

Maybe (it's just my opinion) some OEMs use some kind of ram "mac-address filtering" on "faulty" units that allows the system to work properly only if stock ram is onboard.

About throttlestop, could you check if stock turbo power limits are PL2=90 and PL1=60 just like in the picture posted by Aaron above ?

Also with that -140mV undervolt, would it be possible for you to set multipliers like this:

1 Core Active---->47
2 Cores Active--->46
3 Cores Active--->46
4 Cores Active--->45
5 Cores Active--->45
6 Cores Active--->44

and then run for example Aida64 system stability test (Stress CPU only) for 5-10 minutes and using "CPUID HWMonitor" check these ?:

1- Cores Frequencies
2- Cores Temperatures
3- Cpu Package Power Consumption
4- Cpu Tdp

Would be great if you can post some screenshots showing these 4 parameters. Hope you can do it !

 

HI !

Whas that 4.35 GHz on single core load achieved without any undervolt ?
What are stock power limits ? Are they editable too ?

Not really an expert but when a cpu is running a single core load, this means (for E-2176M) that 1 core (not necessary is core #0 but whatever core from #0 to #5) is AT 4.35 GHz and active while the other five cores are at 2.7 GHz (stock base speed) but not under load ?

As i hope you have seen from previous messages, throttlestop reports for 8850h "+4" under "turbo overclocking" in fivr.
Does "E-2176M" also has this "+4" ?

Is the "overclock box" available or greyed out ?

If "+4" is not reported, do you confirm that max settings you can set on your E-2176M is this ?:

1 Core Active---->44
2 Cores Active--->44
3 Cores Active--->44
4 Cores Active--->44
5 Cores Active--->44
6 Cores Active--->44