Hi
I've managed to get my hands on an old Pentium D 925 system. Since it's long in the tooth, I figured I'd get some overclocking experience. I have a couple of questions.
When I first tried OCing it on the lower quality motherboard it came with, I could only get +200MHz due to lack of voltage control. However, on the jump from 3000->3200 the system lost 7+ seconds on Super-Pi. It was stable under prime for several hours though. Any ideas as to why this happened? The power supply was a 350W Silverstone Strider which I think was decent for its time.
I switched to a newer Galaxy motherboard and have been able to hit 3.4Ghz with no voltage increase and 3.6Ghz with +0.25. Of course Super Pi scores increased dramatically!
I'm a little worried about the heat though. I'm using the stock 775 cooler with a copper centre and getting 47-55C idle and 59-65C under load. I understand that most netbursts were hot as hell, but I thought that the 65nm die shrink had made it somewhat better? Should I be worried about those kind of temps and if not, how much more headroom do I have? I will be employing the machine for near round the clock Rosetta@Home so I'd like to get as much life out of it as possible.
-It's summer here at the moment, though it hasn't been blazing hot
-I'm using Coolermaster thermal paste (cools my AMD X2 245 just fine)
Thanks!
I've managed to get my hands on an old Pentium D 925 system. Since it's long in the tooth, I figured I'd get some overclocking experience. I have a couple of questions.
When I first tried OCing it on the lower quality motherboard it came with, I could only get +200MHz due to lack of voltage control. However, on the jump from 3000->3200 the system lost 7+ seconds on Super-Pi. It was stable under prime for several hours though. Any ideas as to why this happened? The power supply was a 350W Silverstone Strider which I think was decent for its time.
I switched to a newer Galaxy motherboard and have been able to hit 3.4Ghz with no voltage increase and 3.6Ghz with +0.25. Of course Super Pi scores increased dramatically!
I'm a little worried about the heat though. I'm using the stock 775 cooler with a copper centre and getting 47-55C idle and 59-65C under load. I understand that most netbursts were hot as hell, but I thought that the 65nm die shrink had made it somewhat better? Should I be worried about those kind of temps and if not, how much more headroom do I have? I will be employing the machine for near round the clock Rosetta@Home so I'd like to get as much life out of it as possible.
-It's summer here at the moment, though it hasn't been blazing hot
-I'm using Coolermaster thermal paste (cools my AMD X2 245 just fine)
Thanks!
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