P870DM2-G Bios/Throttle question

Im a rather un-happy owner of a P870DM2-G 6700K(Branded 3XS Scan Computers), which I've owned for the last 3 months. I use this machine mainly for video editing/video rendering, after noticing some massive rendering frame rate drops I decided to investigate.

So after loading AIDA64 and running System Stability Test I have discovered this throttling up to 40% within 60 seconds and core temps hitting 96/98c according to AIDA. Have repasted CPU with very little effect.

Having read some threads, decided to give Throttlestop ago. I have dropped the voltage 100mV and no more throttling.

So the is there a stock Bios with the undervolting working (other than Prema, which is not a option with Scan computers) ?

If so where can I find it ?

Currently on Bios 1.05.03 / EC 1.05.06

 

Nope

Also, if you don't have the Prema BIOS, you will get CPU throttling when you run anything which uses the CPU/GPU at the same time. Try Fire Strike and see how it throttles

These machines are useless without the Prema BIOS mate:

Benefits of Prema BIOS:

• Fixes the biggest issue with these Clevo laptops where they would throttle the CPU as low as 2.5 GHz the moment both the CPU & GPU are under load due to current issues with the Clevo Stock BIOS/EC Firmware.
• The ability to disable other drives connected to your system without physically removing them from your laptop, this comes in handy when installing Windows as you never want to have more than one drive connected at the time you are installing Windows otherwise the Windows setup will place the boot files on the 2nd drive it sees which hurts performance and makes it a headache when creating system images or restoring since the boot files are not on the main drive.
• The ability to overclock, increase Turbo Power Limits and System IA/Core Current Limits
• The ability to enable Intel Speed Shift Technology (it is disabled in the stock BIOS)
• The ability to run RAM with speeds higher than the standard 2133 MHz. I am not talking about overclocking here, I am talking about actual RAM sticks that are rated to run at 2800 MHz for example like the G.Skill 64GB 2800 MHz kit I have. With the stock BIOS, they will not run above 2400 MHz. In the case of the P870DM3, the stock BIOS now supports up to 2666 MHz. I believe but not more, so the Prema BIOS is a must again
• Fixes the instability with the G.Skill 3000 MHz. RAM using XMP Profile 1 with timings of 16-18-18-18 where in the stock BIOS you would have constant crashes or not be able to boot altogether so you’re forced to use XMP Profile 2 which is slower with 18-18-18-18 timings.
• The ability to enable CSM for those who want to install other OSes like Windows 7
• The ability to undervolt the CPU as the stock voltage is way too high which causes the CPU to overheat much quicker and thus throttle under load.
• The ability to enable or disable CPU AES instructions or Virtualization
• The ability to disable hibernation from the BIOS
• Sets the default keyboard lights from blue to white which suits more tastes

Benefits of Prema VBIOS:

• Power throttle disabled
• Over-voltage slider enabled and adjusted (up to a maximum of 1.2v)
• Activated and adjusted thermal slider (to keep it cooler if desired)
• Core overclock slider limit raised
• Power consumption meter activated
• Fixed 3D voltage base-line in order to stabilize OCs and voltage-match both cards in SLI systems (based on average ASIC)
• Thermal protection @ 92c (once*91c are breached the system throttles volts and clocks in order to protect it)
• Protection against Furmark and Kombustor GPU burnout (AVOID those software even with stock vBIOS)!

 

If all you're doing is undervolting then just set Throttlestop to start automatically (there's a guide for win10 buried somewhere in the Throttlestop thread) it will basically function the same as if set from BIOS. Actually it will work better as I found BIOS settings were sometimes lost on resuming from sleep.

You may be able to go beyond -100mV too. Usually -150mV is perfectly stable with stock 4.0ghz and drops max temp by 15-20C

 

As I only use this machine for video editing the gpu's rarely come into play (other that some special filters/fades). Getting the throttling on the cpu alone .. really do think this machine is a £3000 turd.

 

I'll have to have a look in the TS thread, currently starting manually with -100mV with not throttle. Cheers

 

Well looks like the 7700K I've got is going to be out of the question too as Scan computers can't/won't supply the Kaby Lake bios without me sending back the whole machine.

This thing is a real turd, think a desktop may well be my next purchase much the shame loved my 370EM and P570WM (both Prema modded).

This thing can burn in the fires of silicon hell !!!!!

 

This machine is more balanced towards the GPUs rather than the CPU.

For your workloads a P7xx series which can borrow the GPU heatsink side would have made FAR more sense!

Speak to those in the know on here before the next machine and you can avoid this kind of trap for the less in the know.

 

I'd agree with you. For this amount of money it shouldn't be thermal throttling. If i were to guess I'd say you've got a crappy fitting heatsink. Are you able to repaste yourself or delid the CPU? You wont regret it.

These machines come off the production line is such a sorry and inconsistent state, but if you sort out the heatsink they're truly excellent. Even better than that if you delid.

 

I can see the promise of these machines (with TS everything runs quite nicely but I really shouldn't need to run 3rd party software to get it run at stock speeds). I did a repaste which knocked a bit off the temps. I've been lucky with the heatsink and ISH both of these are pretty good, well that's what the pressure paper leads me to believe.

I've got a Rockit 88 on order so a delid is on the cards in the near future (well 10/14 days anyway).

 

Any Clevo machine, in fact any machine sold should be able to run at its advertised stock speeds without throttling. If your overclocking then its another matter.

Rather like buying a Ferrari, works fine while your driving around town but as soon as you put your foot down on the autobahn your limited to 4 cylinders !

We all know its a bios issue which by default is overvolted. Clevo have released at least 3 updates to the bios all with broken voltage. Clevo if your going to give us a crippled bios least make sure the bits we can change work.

P7xx series by all accounts is not a great deal better.

 

What load voltage are you seeing at stock?

 

Around Avg 1.320 +/- 3 Spikes up to 1.382

 

Btw this is no longer true, at least with the P870KM that I got. The stock BIOS now has a "+/-" option below the offset for voltage and correctly applies negative voltage as well. Confirmed by looking at HWMonitor. Just got my new machine yesterday and am very busy at work until the weekend. I will post the screenshots in my review later

Also looks like OP has got a bad paste job and/or bad heatsink. The guys over at Obsidian-PC, Portugal did a wonderful job for me. At stock settings, even without undervolting, the i7 7700K got up to a max of 77 under Fire Strike.

 

Machine has been re-pasted several times with different pastes. For a change the heatsink is pretty good and sits well on the IHS (tested with pressure paper).

Voltage offset on the stock P870DM2 is broken, only allows positive numbers (By default the bios is overvolted even at 0 its more like +100)