undervolting gtx 970m sli

Hi guys

I undervolted my CPU and got amazing results temp wise, but now i am looking to do the same with the 970m sli as 1 temp is 60 and the other is always around 85/88 dnt know how to do this, is this a safe temp being like that ? juts looking for info i have 3 years gold warranty with the machine. i heard you could flash the bios is this safe and if it is can u flash it back if anything goes wrong with the machine as it is expensive but i just want to get the most outof it and play with safe temps

thanks guys

 

The other one needs new thermal paste to be applied or is a faulty card.. Either repaste the GPU yourself or send it in!

 

I have already taken those steps I also use a cooling stand aswell. But was told 1 card will always run hotter during sli but I wasn't sure as I thought it could be the same issue as my cpu if my fan speed is at 100% it brings it down but that would burn the fans out. So was looking for a different option

 

@Teebhoy89 - The fans often outlast most everything else in a computer.

And yes, one GPU will run hotter than the other.

 

Are these temps normal then ? I thought 85/88 was high and that's me using the cooling station at 100% but I don't put the fans into overclock mode as it's like a lawnmower. Just thought there would have been other resolutions out there somewhere

Thanks for the replys

 

High 80s is not uncommon. A little high, but certainly still safe. Are you sure your cooling station is doing much? Most of the time those things are placebos; depends on the system and model of the cooler.

Which thermal compound is applied?

 

Arctic silver 5. I reapplied it when I got the laptop about 2-3 months ago but just thought that 85 was the limit before they cut it off so was not sure and thought I would ask for help. I had the same issue with the GPU i76700k and that was a easy fix just the undervolt those temps dropped from 85/89 to 65/70 but this does not seem to be a easy fix I have the cooler Master 3. Since I have had it the temp has always been 85 but the other one goes to about 65 so I don't have a clue if that's normal got help here before so thought I would try again

Thanks

 

There are better pastes around now but it will do the job, flashing the vbios does have its risks. If you do flash it, test it on the slave card first before flashing the primary.

 

Yeah there are benter paste but nothing that can reduce that kind of heat. I have never flashed the bios before. It is the secondary gpu thts always warmer. Just because theach amazing results I got on the cpu I thought I could do the came for the GPU and make the laptop last longer with less heat

Thanks

 

The 2nd GPU shouldn't run that much hotter though.. I have a 970M and it tops out at 70C.. I would get some better thermal paste like Gelid GC Extreme and some new thermal pads and hopefully that drops your temps.. Otherwise, have the 2nd GPU heatsink replaced.. This should hopefully fix your issues..

Sent from my LG-H811 using Tapatalk

 

Thanks fir the reply mate. As I said it is only maybe 3 months old so I think I will get in contact with the supplier and see what they can do about it as it doesn't seem right to me as I don't like any temps above 80 even with the cooling stand on doesn't seem right to me

Thanks

 

That may be a good idea, they can take you through step by step to investigate.

 

Wel I went to send them an image of the second gpu at 88oc and to ask more problems but now the card has failed only running 1 card even tho sli is enabled so maybe there was a problem with the GPU after all

 

Even more reason to have a chat then, how is the primary card now?

 

I just put it on there as I came home from work and everything seems okay again for some reason still aye 88oc though so not liking that aspect of it if someone else had the same setup with 2 cards then it would be easier to just say it's okay rather than worry about it. Primary card never went over 75 when it was alone when the other card went off so I onestly don't know now lol.

 

If you felt up to it you can swap the cards and see how they behave with the other heatsink.

 

That's actually a pritty good idea. Al go and do this and I will get back to you should only take 10 mins. Should have thought of this myself

Thanks

 

+1. IC Diamond works about as well, although it can scratch the surface of the IHS and copper heat sink.

Yikes! It could minor, but best to let them take over in any case.

 

It's defo not a issue with the heat paste as I applied the same heat paste to both gpu and the cpu but only 1 card is going high but it's back on now for some crazy reason lol it had a mind of its own I think

 

It's worth checking the seating of the card and then swapping them over to see if maybe the heatsink has an issue. Talking to your reseller like I said is a good idea.

 

Have you checked the heatsink as well? Do the heatsinks both look like they are making about the same amount of contact with the GPUs? Or does one look like it might be bent in some way, maybe causing a bit of a gap more than the other?

 

BTW mate this workerd. Plus I removed all the covers that somehow were blocking the fans not my gpu goes to 70oc max when I use the cooling stand at 50% stays around 59oc. So thanks for that took me some time to get this laptop running sweet as it does need a good few tweaks but finally got there next stage is this vbios.mod and if it's worth getting

Thanks