Hi! Hopefully someone could enlighten me because I've done tons of research and I cant seem to find the source of this issue. My older gforce card died and since my mobo was kinda meant for ati cards, i purchased two radeon 4850 for crossfire. Here are the PC specs
OS: WinXP Pro 32bit
Processor: Intel E6850 Core2 Duo 3.0 GHZ
Motherboard: ASUS MAXIMUS FORMULA / SE LGA 775 Intel X38 ATX Intel
RAM: 1GB x4 but of course XP only uses three
Power supply 680w
The only new components are:
VisionTek HD4850 x2 (one is the older 1slot model and the other is the newer 2slot) connected with crossfirex
After installing both cards I originally had an issue where they would overheat and pc would just completely shut off, so after a little research I found that the stock fan speed sucked so I adjusted that to around 65% for both cards. Temp seemed to be normal range on both cards, 1slot 4850 was 50C idle and 70C under load. the 2slot 4850 has a bigger heatsink so that was 40C in idle and 50C under load. Both of those numbers I believe are normal depending on the case temperature but correct me if I'm wrong please~
After resolving issue with cards overheating, the processor started overheating to around 70C in idle and would shut down under load. i guess from the increased heat within the case? or maybe a coincidence? Anyway this was fixed by just applying a little thermal grease, then processor went back down to 30C on idle and 45C under load.
With those two issues out of the way, I finally got a chance to use my pc and test my cards under heavy gaming for longer than 5 minutes without it shutting down, only to have it shut down 30 minutes later. After it shut down I checked the temp on the both gpu, one was 70C other was 55C, and the cpu was only at 44C so the heat was normal I believe. I'm thinking it may be the power supply that does not have enough watts to support this machine but 680W is kinda alot and i dont have anything else lying around to try except 400W supplies. Any ideas or suggestions that I haven't tried yet?
OS: WinXP Pro 32bit
Processor: Intel E6850 Core2 Duo 3.0 GHZ
Motherboard: ASUS MAXIMUS FORMULA / SE LGA 775 Intel X38 ATX Intel
RAM: 1GB x4 but of course XP only uses three
Power supply 680w
The only new components are:
VisionTek HD4850 x2 (one is the older 1slot model and the other is the newer 2slot) connected with crossfirex
After installing both cards I originally had an issue where they would overheat and pc would just completely shut off, so after a little research I found that the stock fan speed sucked so I adjusted that to around 65% for both cards. Temp seemed to be normal range on both cards, 1slot 4850 was 50C idle and 70C under load. the 2slot 4850 has a bigger heatsink so that was 40C in idle and 50C under load. Both of those numbers I believe are normal depending on the case temperature but correct me if I'm wrong please~
After resolving issue with cards overheating, the processor started overheating to around 70C in idle and would shut down under load. i guess from the increased heat within the case? or maybe a coincidence? Anyway this was fixed by just applying a little thermal grease, then processor went back down to 30C on idle and 45C under load.
With those two issues out of the way, I finally got a chance to use my pc and test my cards under heavy gaming for longer than 5 minutes without it shutting down, only to have it shut down 30 minutes later. After it shut down I checked the temp on the both gpu, one was 70C other was 55C, and the cpu was only at 44C so the heat was normal I believe. I'm thinking it may be the power supply that does not have enough watts to support this machine but 680W is kinda alot and i dont have anything else lying around to try except 400W supplies. Any ideas or suggestions that I haven't tried yet?