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MSI Twin Frozr

nuzik

nuzik

nuzik

Associate
Joined
29 Jun 2012
Posts
964
Hi guys I have the above in the 7950 varient and when im running games at ultra and getting decent frame rates it starts to get really hot and over 81 and then it cuts out and the PC dies.
Ive not over clocked the card in anyway shape or form.
MSI HD 7950 Twin Frozr III Boost Edition 3072MB GDDR5 PCI-Express Graphics Card its this card i have
Is there any issue with the card should it be getting that hot?
It runs at 38-40 when its idle
 
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How many intake/ exhaust fans does your case have? it might be a cooling issue. I have the same card as you and it idles at 35c, but never goes above 70c even in the recent hot weather. Also what condition is the cards heatsink/fan? is it badly clogged? same applies to the case fans.
Deffo worth trying the obvious first
 
Hi fella, case doesnt seem to be too hot, i mean yes when the games running it gets hot. But when its not its not.
Im running at 2560 x 1440 so that will put it under some power. Ive put my CPU as stock as well so only running as it should be.
if i run on ultra on Splinter cell it get to around 70-75 at 30fps and thats fine. But if its 45fps it gets to 80+
I had a sapphire card before and never had an issue with it.
 
I have 2 of this cards.. the top one idles at 42C and the bottom one at 35C, but I use 3 monitors, the memory is always on the highest clock so that is why it is that hot.

with my custom fan profile the top one never gets more than 68C, with the default fan profile it would get around 74C tops.
 
mmmmmmmmm ok thats about the same as me, and running high res as well.
Does yours ever just turn off the PC?
 
air flow isnt bad, i rechanged the fans yesterday, lifted the pc off the ground. And drilled some holes in the case to allow better flow.
 
Do you have a sufficient exhaust flow? To much intake will lead to a lot of recirculation, particularly if there's one above the card (rear fan mount for eg), and none beneath.
 
nuzik said:
power issue? a sivlerstone 750, its not a power issue
Click to expand...

Because PSU's don't ever go faulty do they? :rolleyes:

You've got a problem, I'm trying to help you out. Just because you've got a good PSU doesn't mean it's can't be at fault.

From what you're describing, ie PC completely turning off under load, this would indicate to me that there's an issue with the power supply.

If it was MY PC the first thing I'd be trying to take out of the equation would be the PSU. It's just basic fault finding.
 
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i have a Shinobi bit fenix case.
two fans at the front bring air in.
then i have a fan at the top taking air out and one at the back taking air out.
the CPU has a noctua cooler thats huge with two big fans keeping it cool.
Ive made air vents in the side of the case to help air flow. And i have raised the case off the ground by 2 inches to help air
 
coupe69 said:
Because PSU's don't ever go faulty do they? :rolleyes:

You've got a problem, I'm trying to help you out. Just because you've got a reasonably good PSU doesn't mean it's can't be at fault.

From what you're describing, ie PC completely turning off under load, this would indicate to me that there's an issue with the power supply.

If it was MY PC the first thing I'd be trying to take out of the equation would be the PSU.
Click to expand...

I know they go faulty, i was just saying that it was powerful enough to cope with the load.
 
nuzik said:
I know they go faulty, i was just saying that it was powerful enough to cope with the load.
Click to expand...

LOL, Not if it's faulty though! It could quite easily be dropping a rail to below spec causing all sorts of issues.

What GPU did you have installed before the 7950?

81 degrees celsius is not hot for a modern graphics card, hell my 480 sits at 90+ for hours at a time.
 
Overheating graphics chip can also cause a pc to shut off, at least it did to me before I realized I would need a copper shim for my waterblock to properly contact the core....:o (start game, ahh blissfull silence, black screen!, power off).

Although 81c is not overly hot for a gpu, under an oc the stable temp threshold does lower and being a boost edition that could come into play.

How are the vrm temps? If the gpu is kicking out that much heat under boost with high voltage, they could be working hard and getting toasty.

Also re psu, tried diff pcie cables?
 
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eddyr said:
Overheating graphics chip can also cause a pc to shut off, at least it did to me before I realized I would need a copper shim for my waterblock to properly contact the core....:o (start game, ahh blissfull silence, black screen!, power off).
Click to expand...

I'm not saying it couldn't cause a PC to shut down, but as has been stated the GPU doesn't appear to be getting overly hot.

The OP just has to do some basic fault finding and the first thing I'd try would be the PSU. Either that or try the card in another system, obviously a system that has a decent PSU in...
 
That's not your VRM reading :)

T5Ixb7E.jpg


If you're hitting around 80c on the core, I'd imagine that your VRM's are hitting 100c+ and causing the shutdown.
With my old sapphire 7950 in a shinobi, I saw the VRMs hit 99c with a core temp of around 78c or so.

Ed: but that was overclocked to 1150 so there's definitely something not right here...
 
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