morphling1
08-24-2003, 02:50 PM
Hi
Long time no see :)
Few weeks ago I also succumb to P4 C platform, and I went and buy Asus p4p800 dlx, along with 2.4 GHz cpu. Of course like many I'm also impressed with it's performanse. First two weeks I ran overclocked at 3.2 GHz with box cooler, and last week I finaly made new waterblocks for both cpu and NB. I used my previous design that some of you already know, but with a few modification. This time I went with extremly thin base of 0.4mm, so this is basicaly direct die block with microchannels. I was very pleased with cooling, with box cooler temps were 57°C with HT on 3.2 GHz 1.6 V core folding, now I'm at 3.3 GHz 1.65V HT on folding at 33°C, NB is also water cooled, which was also quite fun to figure how to mount water block because there are no mounting holes on 865/875 mobos. So now you're proly seeing my problem, which is of course low cpu clock, not because of cpu, but because of FSB, I just can't get stable past 275 MHz no matter what mem divider I use (btw I have Hyperx pc 3500 mem). So here I turn to you, for ideas how to get past that wall.
Do I need VDD mod, VDDR mod, or any other mod for that matter. I'll definetly make VDDR because 2.85V is just to low. But for VDD I haven't heard, I recall someone said tha VAGP help, but in my case it only help a little to get to 285 but it would hard lock eventualy, so I'm still stuck with 275 stable.
Any other tip, maybe bios settings (I realy don't know what I could overlooked, btw. bios ver 1009)
So Ideas welcome, even the most xtreme :D
Long time no see :)
Few weeks ago I also succumb to P4 C platform, and I went and buy Asus p4p800 dlx, along with 2.4 GHz cpu. Of course like many I'm also impressed with it's performanse. First two weeks I ran overclocked at 3.2 GHz with box cooler, and last week I finaly made new waterblocks for both cpu and NB. I used my previous design that some of you already know, but with a few modification. This time I went with extremly thin base of 0.4mm, so this is basicaly direct die block with microchannels. I was very pleased with cooling, with box cooler temps were 57°C with HT on 3.2 GHz 1.6 V core folding, now I'm at 3.3 GHz 1.65V HT on folding at 33°C, NB is also water cooled, which was also quite fun to figure how to mount water block because there are no mounting holes on 865/875 mobos. So now you're proly seeing my problem, which is of course low cpu clock, not because of cpu, but because of FSB, I just can't get stable past 275 MHz no matter what mem divider I use (btw I have Hyperx pc 3500 mem). So here I turn to you, for ideas how to get past that wall.
Do I need VDD mod, VDDR mod, or any other mod for that matter. I'll definetly make VDDR because 2.85V is just to low. But for VDD I haven't heard, I recall someone said tha VAGP help, but in my case it only help a little to get to 285 but it would hard lock eventualy, so I'm still stuck with 275 stable.
Any other tip, maybe bios settings (I realy don't know what I could overlooked, btw. bios ver 1009)
So Ideas welcome, even the most xtreme :D