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LolSalad · Posted: Wed Sep 30, 2009 5:30 am Post subject: ATI HD 4890 temperatures

At what temperature should I start to worry? Under 99% load, it gets to about 85 degrees Celcius max, 82 average.

It's still fine after 3 months of being used quite a bit, but I'm worried about what it might get to in summer (gets really hot here in Aus in summer Razz

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Codeslinger · Posted: Wed Sep 30, 2009 6:50 am Post subject:

lol awesome avatar

If you didn't look it up then I wont either and so I'll just have to go off of experience and what I already know...

In my old case which had two 250mm intake fans but no exhaust, I had a 8600 gts that would idle around 65 and stay about 79 under load.

It's my humble opinion that 80-90c is pretty much the thermal limit for most electronics. That's almost hot enough to boil water and 90c over time is probably degrading... but it's not until around 110-120c until failure actually occurs relatively quick.

Anyway, you shouldn't worry because all graphics cards and cpus will now automatically shut off before they reach a certain temperature. Although I'm not sure if that's to say it's possible to keep them at a temperature just below that point and for a long time, causing gradual damage, which is what you're probably concerned about (I still wouldn't be concerned though, but if I did have a bad feeling, I would simply order a new exhaust fan).

I got the Ultra Kaze from new egg ($10 and rated at 350 cfm) and I'll admit it's overkill, but that doesn't bother me at all because the only noise it makes is the low/medium pitched "whoosh" of the air movement itself and not an annoying high pitched squeal that the xbox 360 has.

LolSalad · Posted: Wed Sep 30, 2009 7:01 am Post subject:

I did look it up and the highest was someone saying 'I get around 80 under load'. Since I constantly get 80-85 I was a bit worried.

Thanks for that info though. Yeah, it's really the gradual damage that I'm worried about. The fan automatically sets itself to around 40% which keeps it from going above 85%, and there seems no option to do something like make it set the fan to say 120% of what it normally would at that temperature, which would make me worry less.

I could set the fan speed manually, but I don't want to forget to turn it up when I might need to and fuck it over, so I'll trust the automatic fan speeds I guess.

Codeslinger · Posted: Wed Sep 30, 2009 7:05 am Post subject:

Well since it is gradual damage it wont hurt to forget once in a while. But if you use speedfan then it will automatically set it to 100% every time you start up.

Imo 85 is okay, 90 is prolly not.

superweapons · Posted: Wed Sep 30, 2009 8:33 am Post subject:

Your graphics card should still be completely fine at 90C. 100C is when you're pushing it a bit too far. CPUs are a different matter.

Edit: Contradicting myself Laughing

hcavolsdsadgadsg · Posted: Wed Sep 30, 2009 9:24 am Post subject:

90c is still fine. 100c is getting toasty, past that you're probably gonna find trouble.

An I7 will start throttling at 100c, iirc. Any further and you'll probably trip the thermal warning though.