- Jan 28, 2003
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I think this board deserves its' own "official" thread. I'm surprised one does not already exist considering that Anandtech tested this board a while back and got 667FSB and DDR439 speeds. However, this is not the limitation of the PX845PEVPRO.
I am very happy with this board and its OC ability:
Preliminary OC:
2.4BGHz C1 @ 2.7GHZ 150x18
512MB DDR400 Corsair XMS RAM timings set at 2 5 2 2 VDIMM @ 2.6V running @ 400MHz
This is just my preliminary OC. Running prime95 today and will OC further and post tomorrow. I plan on OC'ing up to 3GHZ which would be 170x18 = 3.06GHz. I am confident this board and proccesor can handle it because of the many people I have seen with signatures of their oc claiming +3GHz.
Tomorrow's OC will be:
170x18 = 3.06GHz which means the FSB will be 680MHz and my RAM will be running at about 450MHz or 425MHz depending on the mode (2.5 or 2.66), hopefully with the same timings.
I want to keep the same timings and will therfore use the memory as my OC constraint.
Edit:
The next day:
Was able to OC up to 2.88GHz, keeping the 2 5 2 2 timings, but for now that is the limit due to elcheapo PSU. Ran prime95 for 10hrs 12min without error. After I get new PSU the quest shall continue.
Edit II:
The next next day
After scrapping the elcheapo PSU that came with my elcheapo case I was able to OC more.
The results:
168x18 = 3.024GHz @100F idle/ 116F load
2 5 2 2 RAM timings
Was not able to boot when I went to 169x18 with the aggressive timings. So, in keeping with my original statments the RAM timings have governed my OC and I have pushed the envelope to its limit. When I lowered the RAM timings to 2.5 7 3 3 I was able to get 179x18 = 3.222GHz....but I prefer the faster RAM settings.
Oh, and of course I ran prime95 for 17Hrs......no errors
Fellow PX845PEVPRO owners feel free to post those fantastic OC results of yours
I am very happy with this board and its OC ability:
Preliminary OC:
2.4BGHz C1 @ 2.7GHZ 150x18
512MB DDR400 Corsair XMS RAM timings set at 2 5 2 2 VDIMM @ 2.6V running @ 400MHz
This is just my preliminary OC. Running prime95 today and will OC further and post tomorrow. I plan on OC'ing up to 3GHZ which would be 170x18 = 3.06GHz. I am confident this board and proccesor can handle it because of the many people I have seen with signatures of their oc claiming +3GHz.
Tomorrow's OC will be:
170x18 = 3.06GHz which means the FSB will be 680MHz and my RAM will be running at about 450MHz or 425MHz depending on the mode (2.5 or 2.66), hopefully with the same timings.
I want to keep the same timings and will therfore use the memory as my OC constraint.
Edit:
The next day:
Was able to OC up to 2.88GHz, keeping the 2 5 2 2 timings, but for now that is the limit due to elcheapo PSU. Ran prime95 for 10hrs 12min without error. After I get new PSU the quest shall continue.
Edit II:
The next next day
After scrapping the elcheapo PSU that came with my elcheapo case I was able to OC more.
The results:
168x18 = 3.024GHz @100F idle/ 116F load
2 5 2 2 RAM timings
Was not able to boot when I went to 169x18 with the aggressive timings. So, in keeping with my original statments the RAM timings have governed my OC and I have pushed the envelope to its limit. When I lowered the RAM timings to 2.5 7 3 3 I was able to get 179x18 = 3.222GHz....but I prefer the faster RAM settings.
Oh, and of course I ran prime95 for 17Hrs......no errors
Fellow PX845PEVPRO owners feel free to post those fantastic OC results of yours