Dell Precision M6700 Owners Thread

Power limits can't be raised or removed on Precisions below Haswell right?

 

Without using certain tools no. The CPU is kind of locked to its TDP, and although there are a couple tools to unlock clocks you aren't going to be able to use more than 65W due to power delivery. The GPU actually can go farther than 100W but it's unlikely that whatever card you have can support that much power output. The RAM timings actually can be edited using either a hacked Dell BIOS (kinda risky) or GRUB tweaking. I have very little experience outside of CPU and GPU OC'ing but these guys on the M4600 forum were able to get 2133 MHz working with GRUB editing (if only I understood how lol). I would link the posts but I don't know if I could find them again.

 

I know my way around a UEFI shell but I don't see any variables that control the power limit.

 

Has anyone been able to get more recent NVIDIA drivers working? The newest driverpack that will complete an install is 426.50 (02/2020). I want to try and get 471.41 or 472.12 to work but after starting the installation the driver fails to install. I've pasted in the tweaked nvdmwi.inf file and the installer clears the EULA no problem but after selecting the graphics and audio drivers I can't seem to get either to finish installing. Any ideas or other driver packs that I could install instead?

 

Are you using any tools or just looking at the stock Dell BIOS? There is no way to tweak power profiles on the Mx600 or Mx700 systems within the UEFI BIOS, unless you're doing something related to battery power.

 

NvCleanstall.

I'm using GRUB's setup_var and this: https://pastebin.com/N3U53kHz

 

Well I found the posts but it seems as if it were more speculative than in practice. You could scour a bit further in the thread, that's where I heard about the GRUB editing.
http://forum.notebookreview.com/threads/possible-gpu-upgrade-for-precision-m4600.772547/page-24

 

I don't know wtf I did but I managed to let the 3840QM pull 75W during the TS benchmark. Not bad!

 

That is certainly a feat! Did you ever hit TJmax? I believe the 3840QM can handle up to 105C. I was able to get 472.12 to install properly with NVCleanstall. Now I can finally play Halo Infinite with 23 FPS.

 

IIRC it didn't go above 95C, am using GC-Extreme and the base plate+keyboard removed.