Precision 7530 & Precision 7730 owner's thread

Fairly straightforward to use: once you install it, click on the FIVR button which opens a new window:

You see four radio buttons at the top, these control which CPU element (cores, cache, iGPU, uncore) your voltage changes are applicable to.

Check the 'Unlock adjustable voltage' checkbox which allows the sliders beneath to be moved. You want to focus on the Offset voltage slider.

The 7X30 notebooks contain Coffee Lake CPUs which undervolt really well (as do most of Intel's 14 nm products), so you might want to start off with a -100 mV offset (both core and cache), test for stability (games, CPU benchmarks, etc), and slowly drop it more negative. I recall my Xeon E-2176M was able to hold a –140 mV undervolt which boosted CineBench scores by nearly 1200.

You will need an older firmware version (I think 1.12 was the last that allowed undervolting directly), or follow the instructions in this post of mine to use EFI variables to enable the undervolt capability with newer versions. For myself and others, upgrading to the latest, downgrading back to 1.12, resetting to factory defaults, and upgrading again enabled undervolting again.

 

Perfect. Thanks very much for this! Much appreciated.

 

Apparently you and I are the only two people to ever have this problem. I had the drivers from the dell website installed for the longest time and it was working fine, i updated my nvidia driver due to an unrelated issue and the problem is back again. I've never seen the BSOD before but my latencymon looks similar to yours.

 

@pspfreak freak,


You may install windows completely new/ fresh, this might help, before you spend more time on it without any success...

 

I think I've narrowed down the problem to cooling. After trying everything that I could think of (running CHKDSK, uninstalling all software that I don't use regularly), I cleaned out the fans again, elevated the back of the laptop and pointed a small desk fan at it, and... the maddening slow downs are gone. For good measure, I also bought this: https://www.amazon.ca/gp/product/B005C31HC0/.

I noticed when the system was running slowly, generic "system interrupts" were chewing up 25-35% of CPU usage in task manager. I haven't seen that happen since addressing cooling.

 

I updated my BIOS and latest Dell drivers. It's been a few days now and have not run into any issues.

 

Any comment on this?

 

Does it start with battery disconnected? What if you use charger and cables from other Dell Precision laptop?

 

Anyone install the latest BIOS yet? https://www.dell.com/support/home/en-CA/drivers/DriversDetails?driverId=34P2J.