Is my PSU limiting my overclock?

[Flama22]

Hi everyone I've been reading these forums for the past couple of weeks to learn from you guys but now I have a question that I can't seem to get answered on the other forums I visit.

For starters my core system specs are as follows:
A64 2800+
K8N Neo Platinum
2x512MB OCZ Performance Series Rev 3
Enermax EG465P-VE

I seem to be limited to 250MHz HTT even when my LDT and CPU Multipliers are lowered and I'm wondering if this has anything to do with either my PSU or my BIOS.

I haven't updated the BIOS on my board yet and I plan too when I'm done this term at school (don't want to risk any downtime to my system when I need it the most) so that may make a difference but also my PSU, although an Enermax, is an older model that only has 18A on the +12V line :(. I've checked my voltages in MBM5 and they all seem to be within the +/- 5% tolerence but most of the time it picks my CPU voltage up incorrectly at like +3.somethingV's. When it does display it correctly I notice it sometimes dips quite low at random periods which would explain why my system randomly locks up when I'm in the 240MHz+ HTT speed range not even necissarily when under load.

Anyways, I'll stop there but if you guys need any more information let me know. Thanks for any help.

[Playful_Buffalo]

check your voltages with a multimeter - not the BIOS readings

then come back

[Flama22]

I don't have one or even know someone here with one :(.

[saaya]

hmmm your on an 754 board, right? then thats probably your problem... its very hard to get a high fsb with 1gb of memory on a 754 system... check dagalidis latest threads, he made a thread lately, in this section, where he reached 290fsb with 1gb of memory on a 754 board, maybe he can give you some tips :)

and it can also be your chipset... the via chipset seems to max out at 260-270fsb for most people without any mods, maybe your board maxes out at 250 :/

but you should def get a multimeter and check the rails of your psu and see if that could be the problem.