RYANKO

12 hours ago, Sid3ways said:

As of the last 3 weeks, something has happened to my laptop that is causing it to completely changeup the way that ThrottleStop is working. I am also getting a TON more throttling and studders when playing my game. The numbers in the FIVR aren't even the same anymore. I always used to set the CPU core and P Cache to around -110mV, change the iCCMax to like 255 (I didn't have to drag it too far left but now it's defaulting WAY up to 511?!@?). And then for the E Cache I'd set it to -90. I'd also change the cache ratio to 8 / 38 but it won't even let me change that anymore. Also, when I try to apply the settings, the offset no longer changes.

 

To note: I did have 1.18 but went through the updated bios to allow me to kick it back to 1.16 so that is normal. I also have the 330W Alienware power supply hooked up to the unit. When going to 1.18, did it somehow relock the ability to undervolt or something? Can someone recommend what I should be changing/using, setting wise? I did read in here about the BD PROCHOT, that seems to be constantly on, so I should look into how to disable it?

You could search for this thread regarding how to use setup_var and also see my post on the previous page where I'm able to unlock the BD PROCHOT option in ThrottleStop.

On 2/21/2024 at 6:56 PM, dude123 said:

Hi,

I also experienced the 1.18 firmware issue.

What helped me was connecting the AC power supply in addition to the WD19 dockstation i'm working with.

 

Generally, not restoring the former performances, just making it more usable.

Also noticed, fan won't kick in to full speed no matter what, and also gaming is the worst. The Nvidia is not raising above 10% and games stutter.

 

in TS, PL2 of core is active even on idle

A guy from Dell's forum got Dell Engineer's reply and shared a bridge BIOS which allow us to downgrade to version 1.16.
https://drive.google.com/file/d/1mgZK-zpZ_x060i5KGJL78sr7DTxqjJO2/view?usp=sharing

2 hours ago, mkolejak said:

Thanks Ryanko for heads up, I reached to Dell and they are going to replace motherboard 😕 Not happy about that, but if it can solve the problem, what else I should do....in meantime thanks for help, this is the way 😄

 

I also have my motherboard replaced today.
The BIOS version of replaced motherboard was 1.6 during the first boot and is automatically upgraded to 1.16.0 without human confirmation after reboot.
It scared us but everything back to normal after the replacement.
 

42 minutes ago, mkolejak said:

This is nightmare for me, after bios update my cpu is constantly on 400mhz, my gpu is always doing something (about 20% usage), my 128gb camm ram is somehow raising number of gb usage until it reach full capacity and then windows restart itself….I tried also linux, same same….unusable…. this is last time I bought dell machine…..gonna reach pro support what I have with it and then let you guys know….hopefully they will release soon new bios, or I will return it and buy something else….crazy how they can deploy this new bios without properly testing it and what is worse, you cant even downgrade it….shame on dell….

You could unplug the AC until almost out of battery then charge again...

If you know how to use setup_var, follow my last post.

At least you have a working machine for this moment.

8 hours ago, win32asmguy said:

 

Try having throttle stop limit reasons up while you are triggering the issue. It could be something else.

 

You can also confirm in hwinfo64 or throttlestop if BDPROCHOT was successfully disabled after the uefi variable change.

It turns out to be "setup_var CpuSetup 0x7D 0x0" instead of 0x7A in this machine to unlock BDPROCHOT.

However, it's only unlock BDPROCHOT control, rather than disable it.

After that, I could check/uncheck BDPROCHOT option in throttlestop.

For temporarily usage before upgrading BIOS/changing mainboard, I have to boot the laptop without AC, launch throttlestop to make BDPROCHOT disabled and then plug AC power.

 

1 hour ago, win32asmguy said:

 

I have experienced this issue before on both the 7670 and 7780 with any bios version. The issue was traced to a PROCHOT event being tripped which causes the CPU to throttle itself to 400mhz and also the iGPU to 800mhz. This causes problems because if you use the iGPU to drive any display then it causes that display to become sluggish and unresponsive. This can even happen with CPU temps well under 80C. The source of the event was unknown but I have heard it can be power supply overheating, CPU or GPU VRM overheating, GPU over a specified temperature threshold, or the CPU itself going over 100C (but should hot happen due to TccOffset).

 

The best way to stop it is disabling BDPROCHOT so the CPU ignores these events. I mentioned the hidden UEFI bios variable for that in this post, similar process to setting Undervolt flags, AC LoadLine, etc:

 

 

I paired making this change also using a 330W AC Adapter meant for an Alienware 51M R2. They are not sold with Precision but are detected in the bios as 330W and obviously have much more headroom in combined load scenarios.

I have tried "setup_var CpuSetup 0x7A 0x0" according to the post but have no luck.
For me, the sympton after upgrading bios to version 1.18.0 is CPU frequency locked to 0.39GHz which makes even right click menu on the desktop extremely slow.

The issue magically disappeared when I unplug AC power and reappeared when pluging AC back.

It's very repeatable.
In addition, activate the Quiet profile under Power > Thermal Management in the BIOS or the respective section in Dell Power Manager helps a bit.

The sad thing is BIOS 1.18.0 is not downgradable even enabling BIOS Downgrade in the bios menu.

It looks like only way to fix it at this moment is to replace the motherboard with older bios which is tedious and time-consuming.

Any other steps or suggestions I could try?

Anyone suffered from the same problem here?
https://www.dell.com/community/en/conversations/precision-mobile-workstations/precision-7770-bios-1180-overall-system-performance-degradation/65c7802d0217a51eb1a3ebd3?page=1

On 3/25/2023 at 11:18 AM, brunooo84 said:

has anyone updated to latest bios? any issues? thanks!

I have updated the latest bios three days ago.
Use the laptop 14hrs per day.
Nothing special happened so far.
I didn't do undervolt by the way.

1 hour ago, DarginMahkum said:

One more question. Do you think 12950HX makes sense over 12850HX? It is extra €400 which I am not willing to pay for a 3% increase of performance.

From my observation here and there on the internet, the difference between 12850HX and 12950HX is around 4%-10% with various benchmark software. 

For real-world application and usage scenario, just like Aaron said, they may behave quite similar. It's again back to the decision between absolute best or saving some money...

9 hours ago, MyPC8MyBrain said:

need some help guys!
i have opened a thread on TechPowerUp  where UncleWebb has chimed in (Unclewebb is the author of ThrottleStop),
i have explained some issues i was experiencing undervolting the 12950hx, in particular the issue of crashing when just enabling P-Cache undervolt feature without even undervolting, just enabling the feature will crash the 12950hx, unfortunelty i do not have my replacement system in hand yet, he will need some feedback from us with newer CPU's to help improve ThrottleStop for 12'th and 13'th gen CPU's,
please chime in here to help speed ThrottleStop support for our CPU's
https://www.techpowerup.com/forums/threads/throttlestop-p-e-core-support.300650/

I think Unclewebb is referring to this post.

https://www.techpowerup.com/forums/threads/cpu-cache-change-causes-immediate-bsod-i9-12900hx.299837/

My experience with tweaking the ThrottleStop also has crash right after enabling P/E Cache undervolt.

The guy in the post said he fixed it by reducing the "Cache Ratio". (36 in his text but 35 in his screenshot)
However, I remember somewhere else Unclewebb said the Cache Ratio is related to base frequency and since 12850HX's base frequency is 2.1GHz, I set it to 21(see my screenshot above).

This modification does prevent P/E Cache undervolt from crash but I think it also somehow has negative impact for the benchmark(according to my benchmark result).

Also, for some undervolt setting, it could pass the Cinebench R23 without problem but crash during 3DMark in my experience.

 

11 minutes ago, 1610ftw said:

Nice results, are all the 10 and 30 minute runs done with the cooling pad?

 

Yes, they are.

I was in a hurry to install the working software and get back into real work.

So I only did the benchmark with cooling pad before that.

The funny thing is I don't game at all, just out of curiosity to see how the combination can achieve.

For non-gaming / non-continuous high load scenario I think the in-chassis heatsink is barely enough. 

Hello~

 

First post on this forum. Learned much(thanks for all the useful info and discussion) from here and would like to share my benchmark results.

 

Coming from almost 8 years Macbook and finally back to native Wintel laptop.

My Specs:

DELL 7770

i7 12850HX

RTX A4500 16GB

64GB SODIMM 

17.3" UHD Display

Win11 Pro

***Delta Fans***

 

Stock(Single run:):16489

 

After IA AC/DC LoadLine fix(Single run)(apply to all rest results):17185

I did try various LoadLine values but not found much to share.

 

After Honeywell PTM7950 repaste(first time doing this, not sure I'm doing fine or not)(apply to rest results):

After repaste, the core may still reach 100C and some orignially hot P cores remain hotter than others. 

 

with Throttle Stop applied:

 

Single run:23107

 

Add coolingpad for further discover the potential(apply to rest results):

Single run:23599

 

10mins:18975

 

30mins:18385

 

Geekbench:1509/15125

 

3DMark Time Spy : 11403

 

without Throttle Stop

Single run:23206

 

10mins:20207

 

30mins:20034

 

Geekbench:1626/15496

 

3DMark:11409

 

As a result, my experience with Throttle Stop helps to boost R23 single run result a little bit further but fails to improve others. Don't know why.

 

Some notes:

1. As others finding, the benchmark is not as high as other gaming laptops.

2. IA AC/DC LoadLine fix helps to improve overall performance.

3. Repaste may help long term performance.

4. According to other's finding, replace Delta fan with Sunon fan may or may not help the overall performance. So I'm a little bit lazy for the exchange experiment.

5. I can't find a good Throttle Stop setting to improve overall long term performance. In addition, with TS applied, my 3DMark often BSOD during benchmarking which is not acceptable.

6. A beast cooling pad do help reduce overall temperature and imporve benchmark result with the cost of loud noise.

7. For proper dGPU performance, dell power manager has to set to high performance mode. For CPU only benchmark or application, cool mode may help a little bit further.

8. The fan seems not rotating at all during idle or light load which is quite quiet. Sometimes it may burst for short load and I'm okay with the sound.

9. The stock WIFI driver seems have some bugs. After updating to latest driver seems fixed.

10.  It's a shame there is no single perfect laptop which covers for both highest CPU/Graphic performance and long term warranty/service/reputation/etc. People have to decide the priority between the absolute best performance or services. Just a little bit dissapointed DELL could do better with the asking price.