Got my old computer running a while ago, unfortunately the PSU I was using couldn't sufficiently power my graphics card so I could only do mundane tasks such as IM, and browse the web. It's a decent computer:
Anyways I got a new power-supply, which I know is in working condition because I just pulled it out of my brothers computer he rarely uses (which runs games just fine with his Sapphire 1950 something or other GPU.) I remove my old PSU, install the "new one" and hit power.... nothin' happens.
I put the old one back in, starts right up. So I tested the new PSU to make sure it works (which like I said... it does) and it fires up when I complete the loop (ie: run wires from green->black.)
So I'm kind of dumbfounded why it won't start the computer but the old PSU will?
The "PSU" is a TTGI TT-520SS which I have no idea where I got it from, I put it in my brothers computer 2 years ago. I double checked all the little power connectors from the MOBO to the case, which work fine with the old one...
Some PSU's and MB's don't always "talk" to each other correctly.
At boot time the PSU's preset "good PWR ON state" may not be detected in time.
Try holding in the PWR button on the computer for a full sec and see if the system boots.
Message edited by ZOldDude on 04-07-2008 at 06:04:48 AM
---------------
*While we crash and burn, small, low tech, agrarian societies such as the Hmong in the mountains of Laos will continue on without so much as blinking an eye.*
Once heard stories that some psu could be incompatible with some motherboards (like using a 24 pin psu with a 20 pin mobo) because the psu had switched some wires. Maybe someone else has more precise information.
This is no solution but I just wanted to share it to you.
Message edited by hotdogmichigan on 04-07-2008 at 09:44:25 PM
---------------
--- NEVER TRUST YOUR COMPUTER DEALER, ---
-------- HE'S NOT THERE TO HELP YOU, ---------
--------- HE'S THERE TO MAKE MONEY! ----------
---- Ask on Tom's instead it is best advised. ---