voltage settings; ERROR!

[StickySmoke]

Hello everyone! It's been quite a while for me in these forums.

Anyway, I just recently got my p4 550, and it's been giving me some troubles.
One thing I noticed today, is that I reset my CMOS and started overclocking from scratch. I thought it would be best to raise the voltages to ones that have been working, so that's what I did. But my computer would reboot as soon as the windows screen hit, or as soon as I opened a program. Then I lowered the voltages, and VOILA...It worked?

The interesting thing is the temp's are the same with both voltages..So why would a Decrease in voltage (still above stock) make it more stable then hight voltages?? :eh?:

[Foxie3a]

What voltages did what?

It could be a CPU issue, but it might be a power issue too, or even a heat issue, but I think heat would make it lag or freeze rather than restart.

How about your power supply? Are your mosfets overheating?

It sounds to me like once you try having a load, it restarts. It's possible the CPU doesn't like that voltage, or maybe something is unable to supply that voltage like your power supply or motherboard.

[StickySmoke]

Ok, well i have this "3rd eye" gadget that came with my motherboard from abit...It tells me my PSU temp's and they never go above 45c. I would think this is ok, and my OCZ modstream, although not as good as the powerstream, is very good. I guess my confusion, or question, is can turning the voltage up too high, affect the stability..NOT regarding heat issues because my temps don't get above 50 when this happens ( the 3rd eye also gives me the cpu temps)...

I've just always heard that when your systems is unstable, to slowly add Vcore...not subtract Vcore... ??? :welcome:

[Foxie3a]

Actually, I would rather be undervolting than overvolting. Sure I like to overvolt about 0.025v just for the extra juice, but you can definately take voltage too far.

Would you like to give a 40 watt bulb the same amount of power as an 80 watt?

You still have not told me what voltages you are running at. I wouldn't really go above 1.5v with a prescott unless if you had a very beefy system, which you might have.

Remember that 1.5v is only the voltage, there are many more AMPS going to a prescott than northwood, which might not be obvious at first. 1.5v is a lot of juice considering many of them run in the 1.2v area, and I'm sure some can do 1.1v even.

What if you ran at these unstable voltages while your system was at stock? It's possible that when overclocked it's taking up too much juice, and something in your loop can't put out that much.

[Sshadow]

I am running my 550@1.425V and i haven't had any problems upto 4GHz with it. Don't trust the 3rd-eye to much.

//Christian