How hot is too hot?

regulus · 7 Nov 2008 at 16:05

My new graphics card runs at around 75 celsius under load and overclocked. Is that too much, enough, can I push it a little further?

ConTRo13R · 7 Nov 2008 at 16:08

thats not too hot at load. one of my ultras hangs around 70 idle with fan at 60% (the other is watercooled)

regulus · 7 Nov 2008 at 16:10

So around the low 80's should still be ok?

ConTRo13R · 7 Nov 2008 at 16:11

yep indeed, at load i think i top out at around 90.

btw what card you got

Le_Petit_Lapin · 7 Nov 2008 at 16:12

Can you fry an egg on it?

Boogle · 7 Nov 2008 at 16:13

If it starts artefacting, then its too hot. Otherwise it's fine. There is no 'right' temperature, it depends on what the IC and packaging are designed to run it - which obviously varies from card to card.

ConTRo13R · 7 Nov 2008 at 16:17

Le_Petit_Lapin said:
Can you fry an egg on it?

I probably could lol

regulus · 7 Nov 2008 at 16:18

ConTRo13R said:
yep indeed, at load i think i top out at around 90.

btw what card you got

4870 1gig

ConTRo13R · 7 Nov 2008 at 16:19

seems about right for that card

Happy · 7 Nov 2008 at 16:28

Some of the olders cards, ran far hotter

A X1950XTX of mine goes to 90 on a hot day with a small overclock, this doesn't cause artifacting either

regulus · 7 Nov 2008 at 16:31

Good to know. I'll have to hold myself back with overclocking. I always want to go that one little step further

Happy · 7 Nov 2008 at 16:34

As do we all

varkanoid · 7 Nov 2008 at 17:55

regulus said:
Good to know. I'll have to hold myself back with overclocking. I always want to go that one little step further

with such cards these days if you want to overclock then the cooler needs replacing. Call it sinisism but its almost as though manufactures design the stock cooler so minimum overclock can be done hence prompting you to buy an aftermarket cooler to keep them in business !

BananaDunka · 7 Nov 2008 at 18:11

Mine is 80 idle and 90 loaded, it kicks ass in games.

regulus · 7 Nov 2008 at 18:41

Hmm, just pushed the card a bit further, assulted it with Crysis on high settings and suddenly it max out at 67 Celcius.

james.miller · 7 Nov 2008 at 18:42

regulus said:
My new graphics card runs at around 75 celsius under load and overclocked. Is that too much, enough, can I push it a little further?

when it stops working!

regulus · 7 Nov 2008 at 19:13

I have the GPU clock running at 775MHZ and the Mem Clock running at 950MHZ
Folks with the 4870 1024MB, how far do you push your card?

Big.Wayne · 7 Nov 2008 at 20:24

Wanted a nice and quiet card so went for the PowerColor PCS HD4670. PCS is meant to stand for Professional Cooling system so I was a bit suprised when I checked the card in to tbe RiVatuner clinic and ran Furtest!

108°C load! . . . WTF!!!!!!!!! :eek:

Touched the card and nearly burnt off half my body, so far beyond scorching its not funny!

Took the card apart to see what was going on, huge big splodge of TIM?

Cleaned off the factory TIM with a shovel and carefully applied some fresh paste and did a test fit, when I held the card up I could see a faint chink of light shining through still when held up to the light . . .

Did a test fit and made sure there was plenty of pressure then took the card apart again and it seems the heatsink still wasn't making good contact with the GPU core!

Seems to be almost a design flaw with the heatsink base, it should have a protrusion/embossed base that touchs the GPU but no? Had to apply a jam sandwich amount of TIM to fill the gap and get the card working again, I dunno! :confused:

Moral of the story is, not all cards have good heatsinks and not all cards have had the heatsinks TIM applied correctly!

78°C load after TIM redone!

Tee Hee Johnson · 7 Nov 2008 at 20:34

My stupid 8800gt is at 82 right now... folding away

Its a noisy card too!

Thank god i just got a AC cooler thing from the MM

cant wait!

regulus · 7 Nov 2008 at 20:55

This card is sweet. Running Crysis maxed out, 1600 x 1200 at 40FPS constant. I might Crossfire it when prices comes down.