I feel like an uber newbie.. P4 and ATX12V...

[TheVrolok]

Ok, I just upgraded to a P4 and noticed something... what the heck is an ATX12V connector? Or what about AT-PWR as my new mobo calls another connector.. What are these for? Clearly my PSU doesn't have a cable for it, so must I buy an adapter for the 300w PSU I already have, or should I just go buy a new PSU? What would happen if I tried to boot without this ATX12V connected?

 

[Jumpem]

I don't think it'll hurt to boot without it. It gives extra juice to the cpu. Some people run fine without it, others have problems though. I'd probably get a P4 compliant power supply if money's not tight.

 

[Regalk]

When I first saw it a thought hit me - this was the reason why so many people had cold boot problems with the VIA/AMD combo - cpu just was not getting enough juice. Intel sure figured that one out. The Asus P4S333 has an additional 4 pin molex connector which can take a regular connector in the event you do not have a P4 compatible PS. It works like a charm for me.

 

[Jwyatt]

But dont forget the people with P4 that have warm boot problems. I think its the mb manufacturers are under poweing the cpu at default. When i bump my 1600a up to 1.65v sandra shows me actually having 1.53v. its supposed to have 1.5. Thats why the wire trick works so well for alot of people.

 

[Nate420]

It just depends on the Mobo, Asus is known for running Vcore slightly higher than default. (ie. 1.5V setting in bios, actuall Vcore may be 1.55V) I know a lot of older Asus boards were that way. My P4B266 seems to run Vcore at exactly what it's set at though.

 

[switek]

I´d like to buy the Gigabyte 8IRXP mobo. Does anybody know if i need such an adapter or does it also work without juice at this connector ?

thanks in advance,
switek

 

[Barrei]

Switek the 8irxp does need the adaptor or a p4 compliant psu.

 

[switek]

tnx Barrei !