Just a little more? OC problems

[slavic1705]

:brick:

System description
Asus p4c800-e deluxe canterwood (i875P)
P4c 2.6 northwood (478)
ddram 512x2 OCZ PC4400 550Mhz PE RT
460W ENTERMAX
Leadtek 6800GT
Watercooled
Homemade cpu/northbridge blocks

Temps –
CPU – 78-80f
Motherboard – 78f

I cannot get my system to OC over 3.3ghz.
Here is my BIOS CPU settings.

CPU Front Side Bus 250 (is stable)
DRAM Frequency AUTO
AGP/PCI Frequency AUTO

CPU Vcore Voltage 1.5
DDR Reference Voltage AUTO
AGP VDDQ Voltage 1.5v

Performance Mode Turbo

I have ran it at 3.2 (250x13=3.25ghz) for a long time and have had no problems but as soon as I try and OC it anymore it fails to even post. I have a friend with the same CPU/Motherboard/memory and he can OC to 3.5 with not problems. I tried to up the vcore to 1.675 to no avail. HELP! Thanks.

[ibby]

1st of all do the ...... vdroop mod.
then try on 5:4 divider to see what happeds

[sin0822]

yeah im with ibby deff do the vdroop on that board. Also turn up the agp/vddq voltage, it supplies more voltage to your NB,