I recently decided that it's time to make a serious effort to learn about overclocking. Before I really got started, however, I was brought up short by what seem to be unreasonably high temperatures on my graphics card [link] .
Just so I'd know where I'm starting from, I ran FurMark and noticed that my GPU temps were in the 90-95C range. I checked the reading in CCC, GPU-z and the Asus SmartDoctor (I have an Asus HD5850 reference design card, if you didn't click the link) to confirm the reading, and reproduced the temperature by goofing around in Battlefield 3. I tried to do it with Unigine Heaven, but it only got up to the low 80s in the bench marking tool.
To diagnose/address the problem, I've tried: updating my drivers (worth a try, but unhelpful), checking all my fans (they're all spinning as quickly as I'd expect), dusting the case (I'm pretty OCD about dust, so there wasn't any buildup, but now it's clean enough to eat off of), manually setting the GPU fan to 100% (don't noticeably decrease Furmark/BF3 temps), and taking off the side panel (didn't help, so case airflow doesn't seem to be an issue).
One other disturbing symptom is that when running FurMark (neither in games nor Unigine Heaven), once the temperature has started to level off (it's gotten as high as 95C and rarely dips below 92C, long term) the fan on the GPU becomes erratic, and I can hear it changing between 100% and maybe 50% (wild guess, based on sound) with a period of just a second or two. This happens whether I use Asus SmartDoctor or CCC to control the fan behavior (I even went the to point of uninstalling the Asus tool, thinking that perhaps the two applications were interfering with each other somehow, even when shut off).
If I'm just being paranoid, just let me know (and please give me an opinion on an actual safe max operating temperature) and I'll happily go about my original plan of clocking up this GPU till I have to replace it. However, posts here and around the web seem to indicate that 80C would be a more reasonable temperature to hit in FurMark, with an entirely stock setup, and I'd rather not abuse my GPU if I can avoid it. Options I'm considering include: 1) Sit tight, don't overclock, replace the card as soon as is feasible. 2) OC, risk damaging the card and having to play browser games on my 8800gt until I can get a replacement. 3) Reapply the TIM. 4) Buy and aftermarket GPU cooler. 5) Try to go through the ASUS warranty process.
Each option has downsides, and I'd greatly appreciate any advice. For reference, my full system is:
Windows 7 Professional 64-bit Service Pack 1
Gigabyte Z68X-UD3-B3, BIOS: Award Modular BIOS v6.00PG
Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz (4 CPUs), ~3.6GHz
8GB RAM, G.SKILL Ripjaws Series 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Asus ATI Radeon EAH HD 5850
730W Kingwin PSU
LIAN LI PC-A70F Case
Just so I'd know where I'm starting from, I ran FurMark and noticed that my GPU temps were in the 90-95C range. I checked the reading in CCC, GPU-z and the Asus SmartDoctor (I have an Asus HD5850 reference design card, if you didn't click the link) to confirm the reading, and reproduced the temperature by goofing around in Battlefield 3. I tried to do it with Unigine Heaven, but it only got up to the low 80s in the bench marking tool.
To diagnose/address the problem, I've tried: updating my drivers (worth a try, but unhelpful), checking all my fans (they're all spinning as quickly as I'd expect), dusting the case (I'm pretty OCD about dust, so there wasn't any buildup, but now it's clean enough to eat off of), manually setting the GPU fan to 100% (don't noticeably decrease Furmark/BF3 temps), and taking off the side panel (didn't help, so case airflow doesn't seem to be an issue).
One other disturbing symptom is that when running FurMark (neither in games nor Unigine Heaven), once the temperature has started to level off (it's gotten as high as 95C and rarely dips below 92C, long term) the fan on the GPU becomes erratic, and I can hear it changing between 100% and maybe 50% (wild guess, based on sound) with a period of just a second or two. This happens whether I use Asus SmartDoctor or CCC to control the fan behavior (I even went the to point of uninstalling the Asus tool, thinking that perhaps the two applications were interfering with each other somehow, even when shut off).
If I'm just being paranoid, just let me know (and please give me an opinion on an actual safe max operating temperature) and I'll happily go about my original plan of clocking up this GPU till I have to replace it. However, posts here and around the web seem to indicate that 80C would be a more reasonable temperature to hit in FurMark, with an entirely stock setup, and I'd rather not abuse my GPU if I can avoid it. Options I'm considering include: 1) Sit tight, don't overclock, replace the card as soon as is feasible. 2) OC, risk damaging the card and having to play browser games on my 8800gt until I can get a replacement. 3) Reapply the TIM. 4) Buy and aftermarket GPU cooler. 5) Try to go through the ASUS warranty process.
Each option has downsides, and I'd greatly appreciate any advice. For reference, my full system is:
Windows 7 Professional 64-bit Service Pack 1
Gigabyte Z68X-UD3-B3, BIOS: Award Modular BIOS v6.00PG
Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz (4 CPUs), ~3.6GHz
8GB RAM, G.SKILL Ripjaws Series 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Asus ATI Radeon EAH HD 5850
730W Kingwin PSU
LIAN LI PC-A70F Case