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HD5770 overheating... 91C

SheepBeast

SheepBeast

SheepBeast

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ok, so my 5770 is a pretty mediocre card - i'm waiting on the 7000 series - but it can still run most games on decent settings. the problem is that the temps on the card are ridiculous, as is the noise. it idles at about 50-55 degrees even after no gaming. after playing some tomb raider underworld on max settings yesterday the temps hit 91C so i was forced to turn everything down to minimum. even then it was running at about 80.

my first thought was to take the card apart and clean the fan, reseat with new thermal grease. but i can't seem to figure out how to take it apart. it came from a friend's dell xps 8100 and as a result is not quite a reference design. i'm wondering, can someone talk me through the exact process of taking the fan/cooler etc off of a reference 5770, and then maybe i can determine whether i'm being an idiot or whether there genuinely is no way to take it apart.

any other suggestions of how to deal with this problem are also appreciated. specs of my pc are in sig
 
picture would be helpful

the card should have screws on the back to secure the cooler and fan assembly to the card, it should be 4-5 if the card isn't reference, but without knowing what it looks like it's hard to say.
 
SheepBeast said:
but i can't seem to figure out how to take it apart.
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You don't sound too confident about taking the fan off!

Was the 5770 always this hot in your case?

Did you increase the fan speed manually to compensate for the heat?

I would advise using a non synthetic paintbrush and a can of compressed air to clean the dust before even contemplating taking the fan off.

There may be other issues as well, is your cable management in a mess blocking airflow to the card?

Are any of the case fans clogged that may be be preventing good airflow through the case?

As Seraph said, pics help, you may want to take one of the inside of your case too.
 
You still should be able to remove the dust under the fan with a toothbrush/earbud? Any chance of photos of the card?
 
tommybhoy said:
You don't sound too confident about taking the fan off!

It's not lack of confidence, I just can't figure out how lol

Was the 5770 always this hot in your case?

Only built my current PC the other day with mostly old parts, plus new motherboard and RAM.

Did you increase the fan speed manually to compensate for the heat?

No, but it's ridiculously loud and I'm pretty sure it's not supposed to be this loud. Surely the default fan speed is the default because it should be the minimum to properly cool the card? It doesn't even cool it well when underclocked.

I would advise using a non synthetic paintbrush and a can of compressed air to clean the dust before even contemplating taking the fan off.

There may be other issues as well, is your cable management in a mess blocking airflow to the card?

See pictures below.

Are any of the case fans clogged that may be be preventing good airflow through the case?

Nope.

As Seraph said, pics help, you may want to take one of the inside of your case too.
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The two red arrows point to the screw which is attaching the big metal thing (which sticks off the end of the card) to the PCB. I've no idea why Dell would fix something like that to the card as I can't see any use for it other than to get in the way. I can't get to the screw however, because I can't find a way to take the plastic fan shroud off the top to get in at the screw. I've taken off all the screws on the card that I could get to and still the shroud wouldn't come off. Cheers in advance for any help, this is really irritating me lol.
 
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remove all the screws you can on the back, that should remove the front shroud, your card is reference btw ;) just with a metal bracket added on lol

take the cooler off, then remove the other screws for the metal bracket, you don't need the metal bracket Per se ;)

careful with the screws on the X bracket, they are sprung loaded so may fly off if your not careful :)
 
Seraph said:
remove all the screws you can on the back, that should remove the front shroud, your card is reference btw ;) just with a metal bracket added on lol

take the cooler off, then remove the other screws for the metal bracket, you don't need the metal bracket Per se ;)

careful with the screws on the X bracket, they are sprung loaded so may fly off if your not careful :)
Click to expand...

Ok, so I need to take off the X bracket screws as well, just to get the shroud off? I tried taking all the other screws off and the shroud didn't budge, but I didn't try the X bracket ones. The big metal thing on the back seems pointless. Maybe it helps with airflow? In the Dell case it came from, the bracket made a kind of tunnel, along with the bottom and side of the case and the motherboard, pointed towards the front intake fan. I figured maybe it helps direct air into the graphics card intake. Regardless it's pointless in my case as the card is nowehere near the fan.
 
the x bracket screws are attached the the copper heatsink which in turn is housed inside the shroud :)

as for the bracket, pfffft most standard dell cases are not very good for cooling and airflow, your current case is much better, just bin the thing :)
 
Ok, I took it apart earlier, cleaned all the crap out of it (the heatsink was really clogged) with compressed air and a soft tissue, stuck some new thermal compound on and put it back together. Result: idling at 35 (down from 55) and max i've hit so far is 70 (down from 91+). Noise levels are lower too :D cheers guys.
 
I have the XFX Single Slot design of the HD5770 and never been happier. The temps have rose due to my overclock but I can say nothing about it. This is the first time I have heard about one overheating.

One thing I have noticed about your case (CM Storm Enforcer am I to believe) is that you have no top extractor fan, so you will have some excess heat in the case and the Enforcer is not the best on air cooling, to be honest, it's average and with no side fan to bring the temps down a little, GPU's will get a little hot.

The HD5770 series can run under the heat I have heard, but 91C is damn too hot!

Only thing I can think of is to clean the cooler and apply new TIM to the GPU core and maybe new thermal pads if that cooler uses them.

Plus the reference cooler is not the best, its like the reference cooler for Intel systems, CRAP!
 
Yeah, the Intel stock cooler is fairly crappy for OCed processors but pretty decent if you leave it at stock (or only mild OC as I have done). My plan is to get something like an H60 and use the rear 120mm fan as the intake for the rad, and I'll stick a second 200mm Megaflow fan in the top as the system exhaust fan. That should give me a nice airflow through the case and cool fresh air for the H60 :). Just need to save some money first, the H60 is pricey...
 
SheepBeast said:
Ok, I took it apart earlier, cleaned all the crap out of it (the heatsink was really clogged) with compressed air and a soft tissue, stuck some new thermal compound on and put it back together. Result: idling at 35 (down from 55) and max i've hit so far is 70 (down from 91+). Noise levels are lower too :D cheers guys.
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woohoo!

You should aim to strip your card down once every couple of months give it a dusting depending on how much you game, those temps are pretty much spot on for a 5770, my old one used to hover around there too :)
 
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