- Joined
- Apr 29, 2001
Am attempting to o/c a Q9550 CPU, with all 4 RAM slots populated, on this mobo. (the RAM is Corsair, two matched pairs, rated at DDR2-800, 4-4-4-12 @2.1v and known stable at DDR2-1000 @2.1v (5-5-5-15))
The CPU at 1.3v, the system boots, is fast , but Prime95 konks out almost instantly when not having a core fail within 10 seconds (always worker thread 2/core #1 for some reason; I'm only presuming threads 1-4 conform to cores 0-3 respectively...).
I'd read that most Q9550s don't need any voltage nudges to get to 3.8Ghz, and I'm already doing +.05v...
I'd also read the P5Q series is not as much CPU voltage but other factors, and of course I'm stressing the NB more by using all 4 slots -- RAM I do need for various functions (virtual boxes, photoshop, 3D rendering). The PC will eventually be on for ~72 hour periods, shut down, restarted later on but anything that's deemed "safe" 24/7 is ideal, even if I have to live at 430MHz FSB instead of 450, but trying is half the fun...
My NB voltage is 1.50 already (the color indicated is purple -- if I go up to 1.60v it turns red and also says a new NB cooler is needed ) Right now, ambient mobo temperature is 32C (no different than when I had the NB at lesser voltages, e.g. 1.3 or 1.4)
I've passed RAM tests before using lower NB voltages (1.4) and upping to 1.5 has yielded only a small stability improvement.
My FSB term is at 1.32v right now (I can try to go up to 1.4 if recommended)
My CPU PLL is 1.56 (too little?)
vCore is 1.30 (I know 1.341 makes my current setup solid, even 1.337 not being sufficient)
AI Performance Booster is at 10 (default is 05)
I'm also posting this as a continuation of those other threads as I'd already gone on enough tangents and wanted to consolidate... (I hope I'm not coming across as a spammer. A naive person, yup, but any spamming has not been intentional...)
I wish someone made decent 4GB modules, so I can just get two and - in theory - circumvent most of this, but then I'd eventually load up on 16GB and go through all this again anyway...
As always, thank you much for your time!!
The CPU at 1.3v, the system boots, is fast , but Prime95 konks out almost instantly when not having a core fail within 10 seconds (always worker thread 2/core #1 for some reason; I'm only presuming threads 1-4 conform to cores 0-3 respectively...).
I'd read that most Q9550s don't need any voltage nudges to get to 3.8Ghz, and I'm already doing +.05v...
I'd also read the P5Q series is not as much CPU voltage but other factors, and of course I'm stressing the NB more by using all 4 slots -- RAM I do need for various functions (virtual boxes, photoshop, 3D rendering). The PC will eventually be on for ~72 hour periods, shut down, restarted later on but anything that's deemed "safe" 24/7 is ideal, even if I have to live at 430MHz FSB instead of 450, but trying is half the fun...
My NB voltage is 1.50 already (the color indicated is purple -- if I go up to 1.60v it turns red and also says a new NB cooler is needed ) Right now, ambient mobo temperature is 32C (no different than when I had the NB at lesser voltages, e.g. 1.3 or 1.4)
I've passed RAM tests before using lower NB voltages (1.4) and upping to 1.5 has yielded only a small stability improvement.
My FSB term is at 1.32v right now (I can try to go up to 1.4 if recommended)
My CPU PLL is 1.56 (too little?)
vCore is 1.30 (I know 1.341 makes my current setup solid, even 1.337 not being sufficient)
AI Performance Booster is at 10 (default is 05)
I'm also posting this as a continuation of those other threads as I'd already gone on enough tangents and wanted to consolidate... (I hope I'm not coming across as a spammer. A naive person, yup, but any spamming has not been intentional...)
I wish someone made decent 4GB modules, so I can just get two and - in theory - circumvent most of this, but then I'd eventually load up on 16GB and go through all this again anyway...
As always, thank you much for your time!!