Pentium 4 OCing

[GMK]

This is my system:

ASUS P4C800-E Deluxe :cool:
Pentium 4 3.20E (D0) + Zalman CNPS7700-Cu
2x Team Group 512 PC4000
Sapphire ATI Radeon X800 XT PE + Zalman VF700-Cu

Now I'm running the CPU @ 3.57, FSB 223 and ram timings 2.5-3-3-7. < Stable

The system is not stable above 223 FSB. Prime95 crashes or there is an error.

Any suggestions how to make the system stable above 223? :confused:

[Extelleron]

Try increasing vCore a bit? Those Prescotts run hot, so make sure your temps are low enough.

[AgonxOC]

I have had bad experience with the D0 overclocking.... 3.6GHz seemed to be the wall....

Alex

[PFOUR]

I have a DO that will just manage 3.8ghz but it needs 1.475V to be perfectly stable.

[Nanometer]

4.0GHZ was my max, though it was a pretty good one, a SLE75 I think. Simple cooling with an XP-90c. It did 4.2GHz stable with simple water cooling.

What are your temps and vcore.

[GMK]

Default vcore. Temp idle 40c load 57c.

[pH(x)]

3.57GHz is the max bootable clock for my 2.8C Northwood as well ;)

[weezer134]

it could be the chip's max..

[viper650]

every prescott ive had seemed to max out at around 4.0-4.2 with a celeron 4389mhz suicide shot. im guessing it would take either dry ice or LN2 to get the ones i had any higher.

[LenniZ]

Default vcore. Temp idle 40c load 57c.

Dude, you need much better cooling :stick:

Owned a 3.2E SL7E5 once, 4.2 Ghz @ 1.6v half bench-stable.
4.00-4.05 prime95 stable @ 1.52v

watercooled

[EZClock]

I had a 3.2e DO @ 4.1ghz, stable. I could do SPI @ 4.3 (On xp120)

[Mowgli]

got a P4 3.0D0, team xtreem TCCD DDR600, n a P4p800 E Dlx, running @ 3.75Ghz prime stable...idles about 50c, i know its pretty hot, as i am from Malaysia, room temps are about 25-27...i am using an XP120 btw..with juz a normal TT fan, if i use the NMB which churns bout 200cfm of air, idle temps drops to about low 40's...

max i reached was @ 4.0Ghz, benchable @ 3.825Ghz....juz sharing my results...

[GMK]

I got my CPU stable @ 3633MHz, vCore 1.450v.

But now the +3.3v is not so stable. Going as low as 2.9. :mad:

[Serra]

I got my CPU stable @ 3633MHz, vCore 1.450v.

But now the +3.3v is not so stable. Going as low as 2.9. :mad:

You might want to consider backing off on volts until you can get a new PSU then, preferably one that's a little beefier.

Serra

[GMK]

I have a Tagan TG480-U01.