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P4 Overclocking Prolems

M

mtts_ultra

n00b
Joined
Oct 21, 2005
Messages
32
I recently upgraded to an ASUS P4P800SE board. Right now I have the board running stable @ 225 fsb but any higher and the board can't even pass Prime95 tests. I have tried out everything in the BIOS but it still doesnt work. Please help!!! If theres anything else you need to know, just ask.

Thanks in advance. :)
 
Have you tried overvolting? Changing Memory Settings? If so which ones?
 
You're not just raising the FSB are you? You're still messing with other stuff...

 
Overvolting? Obviously...

I have even tried setting my vcore @ 1.8 to boot @ 235fsb but f*** up in Prime95.
Mem voltage is @ 2.85 (but my OCZ are rated at DDR500 2.5-4-4-7 2.75V)
V Agp is @ 1.7V (I read somewhere the agp voltage is also the nbridge voltage)
All ram enhacements (HyperPath, whatever) are disabled.

I have a Zalman CNPS-7000CU running at 12V ontop of my CPU, 80mm fan on the ramm and another 80mm on the northbrige heatsink. My room temp is a chilly 19 Celsius, CPU idles at 27C 3.375GHz.
BTW my vcore drops around 0.5V-0.7V under load.
I cant see why voltages or heat are affecting this
 
what stepping is the cpu ?

AGP/PCI speeds locked at 66/33 ?


D

P.S. these boards have a +/- 0.1v between idle and full load and the only way to get around this is to pick up a soldering iron and mod it
 
ZL1 said:
what stepping is the cpu ?

AGP/PCI speeds locked at 66/33 ?


D

P.S. these boards have a +/- 0.1v between idle and full load and the only way to get around this is to pick up a soldering iron and mod it
Click to expand...

My AGP/PCI are locked to 66/33
I dont know the stepping of the cpu. Is it in CPU-Z? If yes then here: http://valid.x86-secret.com/show_oc.php?id=60582
In this shot I have my ram running a 4:5 (note its not 5:4)

I think my oc is limited to one of three things: my cpu, my mobo or my PSU, I think its my PSU (Enermax 460W rated at 18A on single 12V rail only) Can anyone confirm this?
 
Can anyone find me guides for the VDroop mod and the VDimm mod?
The guides on the net are very incomplete they have no pics. :(
 
mtts_ultra said:
My AGP/PCI are locked to 66/33
I dont know the stepping of the cpu. Is it in CPU-Z? If yes then here: http://valid.x86-secret.com/show_oc.php?id=60582
In this shot I have my ram running a 4:5 (note its not 5:4)

I think my oc is limited to one of three things: my cpu, my mobo or my PSU, I think its my PSU (Enermax 460W rated at 18A on single 12V rail only) Can anyone confirm this?
Click to expand...

I think its just the cpu, p4p800s usually do 250+
the psu should be fine as well, enermax is quality stuff, but if you want you can get speedfan or mbm and check the rails out under load (make sure they dont drop more than 3-5%)

D

PS: I can link you to the mods, but you dont need em, its not the mobo
 
monitoring.jpg


As you can see above, my voltages are pretty stable no fluctuations over 3-5%. Even though the VCore drops arounf 0.1 volts from 1.675V in the bios to 1.57V in MBM5, the CPU isnt erroring or hanging on me.

Right now, I seriously think I need a new CPU, perhaps a Celeron D330 (good multiplier).
 
Well, I think the only thing holding me back from a decent oc is my cpu.

I am thinking of selling my P4 for $100CDN and then buying the Celeron D 325 with the 19 multi, hopefully being able to hit 200fsb (3.8GHz !!)

So my question is: will a Celeron D325 be able to reach 200fsb on my board??? :confused:
 
mtts_ultra said:
Well, I think the only thing holding me back from a decent oc is my cpu.

I am thinking of selling my P4 for $100CDN and then buying the Celeron D 325 with the 19 multi, hopefully being able to hit 200fsb (3.8GHz !!)

So my question is: will a Celeron D325 be able to reach 200fsb on my board??? :confused:
Click to expand...

stretch it a bit and get a 3.0E prescott, if you get a E0 core you may be running 3.8+ in no time and a p4 at 3.8 is much faster than a cel at 3.8

D
 
mtts_ultra said:
Overvolting? Obviously...
Click to expand...

ok just checking, there seems to be a growing number of people who read a paragraph on oc'ing and decide to just up the FSB expecting instant results..and since you didn't mention anything...yeah...


Just out of curiosity..if you go higher than 225. Can you still game and do other cpu intensive stuff? I've seen people with oc's that are solid, yet can't pass prime for crap.

If not...then...crap. =/ I have the same exact chip and mine does 3.3 at stock voltage...looks like you got one of those "bad chips".

 
gwai lo said:
ok just checking, there seems to be a growing number of people who read a paragraph on oc'ing and decide to just up the FSB expecting instant results..and since you didn't mention anything...yeah...


Just out of curiosity..if you go higher than 225. Can you still game and do other cpu intensive stuff? I've seen people with oc's that are solid, yet can't pass prime for crap.

If not...then...crap. =/ I have the same exact chip and mine does 3.3 at stock voltage...looks like you got one of those "bad chips".

Click to expand...

actually if they cant prime they arent that stable, it may seem stable for games and such, but at some point the cpu may miss something and they'll end up with bad or missing data

D
 
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