gtx 980m on p375sm-a throttleing

hello again guys i have managed to flash my gtx 980m with a custom vbios and done some overclocking but it does not work properly, if i manage to do a 204/465 and -181mv i get a bit of stable clocks but in games after a few secconds and reaching 83c the fps drop down if i increase the clocks any higher then that the system will just shut down, on unigine valey the fps go higher but the if i increase the clocks i get artefacts and video driver restart, if i run steamvr performance test in stock voltage i get 5.9 the score if i get the overclocking clocks from above i get 4.4 what the hell is going on with this card, can anyone explain or maybe send me the proper vbios for it, thank you

 

Try backing off the overclock.

 

i cannot manage to get some stable clocks (sort off)

 

I run my 980M SLI with +100/+200 clocks.
I use Prema Bios and vBios. Thermal throttle is set to 92*C in Afterburner.

 

So it does it at stock too?

 

no at stock is ok

 

Then move up in small jumps and test at each stage.

 

i am doing that but i don`t know if the unlocked vbios is good or not as i find it hard to understand why the starting stock voltage is at -180mv(1.068v) if i go higher then that to 1.112v it frezzes if i go lower and i set the clocks to 200/200 i get lower scores and fps drops down, if i go a bit lower there is still no diference but some times the fps goes higher +10 maybe( but might become unstable) never had this problems with 880m as i could oc like hell same with 970m

 

Starting at 200/200 is a massive overclock to begin with.

 

It is indeed for this card. At 200/200 I get games to crash frequently so it is not stable for me. It can run benchmarks easily tho.

 

There are games that dont like OC at all, both Tomb Raiders, even with a 1Mhz OC, either core or memory end in instant crash of the game, not the drivers, the game, strange.

 

Start at something like 50/0 and work core/memory individually to characterise your chip.

 

what about the voltage?

 

Leave it at stock first, then jump it and do another sweep, you will start to build a picture.

 

I saw behavior like that with the rev1 of the 5870M in the G73JH laptop. The memory timings were the culprit and we needed to update the vBIOS, since rev1 used different memory from rev0.

 

i will flash back the stock vbios and leave it like that, but does anyone have the proper unlocked vbios from this card made by prema and the system bios for the laptop p375sm-a as i cannot manage to find them anywhere and i cannot get in touch with prema himself because i am not alowed to, i cannot send him messages or tag him.

 

I'm on the latest VBIOS that MSI launched for my card, and there are some reports of Rise of the Tomb Raider
crashing with OC'ed Nvidia GPU's, this was at least a year ago, maybe it was something driver related, because I update my GPU drivers maybe every 2-3 months.

@matei florin Prema removed all his files due to abuse(people selling them/passing as prema) or using them to copy his work.


You can't write @Prema?

 

i cannot write him nothing

 

There was a tool IIRC to modify your 980M vbios floating around in the past.

 

Solved: i have managed to get the proper prema vbios for the card and system bios and now all is good, thank you all for your help especialy Prema

 

Don't forget the beer money tip

 

will do