P4 800fsb overclocking, need help

[substratus]

I've successfully overclocked a P4 3.0 ghz to 3.52 and have hit a ceiling because my bios won't let me up the core voltage (max. is about 1.6). If I could get to 1.8 or so, I could probably continue to increase my fsb and run fairly stable.

My mobo is an Asus P4P800. Any tips on tweaking the bios? Do I have any recourse?

Thanks for your help~:D

[NoxioN]

1.6v is kinda low, isnt there another bios that offers more vcore?

[Lancelot]

I read a P4P800 review the other day and if I remember correctly these issues were fixed with the latest BIOS It allows upto 1.95Vcore which is just insane but will suit your needs, don't go above 1.70-1.75Vcore though...

[substratus]

yeah, I found that new bios at asus which fixed my voltage problem, now I only have issues with prime95 in that I can't quite make it to an hour before my computer crashes to all hell, but I am working on it. :) pretty stable though. The core temperature stays around 55C on 3dmark03 and on prime95 it flirts with 60C. Idle it is in the low 40s. My voltage is 1.8 - I know you said not to take it beyond 1.75 but I have a pretty experienced friend that told me that it would take 1.8 vcore. What do you think?

[NoxioN]

just keep your temps under 55c load, 60c and it will start to get errors and throttle.
i would use 1.8v only if u had extreme water cooling or vapo prommie.

[substratus]

in your opinion, should I stay at 1.70 or under, what is the max voltage I can get away with if I want to keep the chip's life reasonably long? Thanks for your input

[substratus]

Let me give you guys an update as to my overclocked status as of now:

Running at 230 FSB (with the chip going from 3.0 -->3.45ghz). Funny as it may seem, it is more stable with my ram overclocked at a 1:1 ratio with the FSB instead of 6:5. Voltage is 1.70 (might go to 1.675 and see what it does but I'm pretty sure Prime95 will puke all over me if I do that). I have tried everything including backing the memory down to 3:2 but that seemed to make things worse, oddly... anyway with this voltage it looks like I have hit a 10-ft thick wall. What do you think, any way to squeeze more FSB out of this puppy?

Thanks~

[Lancelot]

Originally posted by substratus
in your opinion, should I stay at 1.70 or under, what is the max voltage I can get away with if I want to keep the chip's life reasonably long? Thanks for your input

1.65Vcore, end of discussion!

[substratus]

If I go with 1.65 or even 1.675 volts, there is no point overclocking my system at all since it won't overclock to any significant degree. I look at all these people on the forum and see that their voltage is 1.65 or so and their FSB is pretty beefed up and I don't know how they do it! What gives?

[gamefoo21]

this is what you call locking the pci/agp speed throwing your ram into a divider(5:4) and backing off on the vcore till it becomes unstable then up it till becomes stable again or just stick it at 1.65 and monkey with the fsb. also up the ram voltages while your at it just to make it like rock. this should allow you to up the fsb more and keep the vcore lower so you don't risk SNWDS.