How much vcore can i pump into a 1.8A

[Hyperlite]

I just aquired (free) an older P4 1.8A system running on a ASUS P4B-533V. i have it prime/snm stable at 2.4ghz right now at 1.55vcore in the bios, cpuz shows 1.6. So, the question is, how high can i go? Temps after a heatsink lapping and new AS5 application are 34C idle, 46C load. i don't know a whole lot about P4 OCing, but i guess the basics are the same. its limited by PC2100 ram, and there is no explicit divider that i can see in the BIOS. FSB is currently plugging away at 535 at 2.7v VDIMM., so there has to be some divider that i have set in there and just not realized it, because otherwise that ram would be running at....about 217mhz? i'll have to look in the BIOS again and write down exactly what is there. any tips would be helpful.

 

[jiffylube1024]

1.6V is the highest I'd go. The A series of P4's were the first where people were killing them by putting 1.7V into them - they died within weeks.

 

[Hyperlite]

yikes. Last night i upped it to 1.6v, then primed all night, so i am now stable at 2430mhz, 135mhz external CPU, 270 mem, for 540FSB. Load temp 48C. looks like i will be stopping here.

 

[trueimage]

Originally posted by: Hyperlite
yikes. Last night i upped it to 1.6v, then primed all night, so i am now stable at 2430mhz, 135mhz external CPU, 270 mem, for 540FSB. Load temp 48C. looks like i will be stopping here.

didn't you just say you had it at 2.4 at 1.55v ? is it worth the extra 30mhz?

 

[Hyperlite]

heh probably not, i just realized that...

 

[stevty2889]

Yep, I agree, 1.6v would be the limit, after that northwoods tend to die. Those 1.6 and 1.8 northwoods were great overclockers.