Need some help, please. Think I have a dead mobo or PS or both!

[ibbilbo]

Came home at lunch and checked my email. Booted fine and shut down normally. Came home after work and hit the power button. No fans, no boot, nothing, nada, zip. Figured the PS had gone tits up so I removed the PS from computer 2 and installed into computer 1. Nothing. Put the PS from 1 into 2. Nothing. CHecked the PS from 1 with multitester and got nothing. Put the PS back into 2 and booted no problem.
Can a PS failure also take out the mobo?
Kinda stumped here.

System 1 is Abit VT6X4, 600e, 300w cheap(CompUSA)PS only 4 months old yadda yadda
System 2 has also cheap no name PS 230w.
I guess the big question is if it's not the PS or the mobo, what else can cause this?
BTW I checked the power cord as well as the switch and both test okay.

 

[beer]

A nuked power supply will have the capability to sizzle a system.
I hate to say it, but it's probably because you have a cheap CompUSA power supply...I had an Antec 250, it died, and took out the motherboard with it, and it was an Abit so the RMA was awful, awful, awful....

Now I have an Enermax on a MSI. Moving up there on the quality parts list.
Please no flames from Antec zealots, you may argue that your power supply is good, but whether or not I think it is good or not, the Enermax is just in a different class. Entirely.

Try to pull out all the components on mobo 1, including the battery (very important),power supply, every card and cable, and start with just your VGA card, your power supply, your processor, and your RAM connected. That, and your case power supply connector. See if it works. If no POST, then yank out the video card and see if you get a beep code. If no POST still, pull out the RAM. If you have just the processor and the power supply and you don't get beep code (or D-LED on newer systems), you probably hosed your mobo. ANd being that it's abit, unless its covered by an OEM warrenty, you will probably end up buying a new motherboard to keep yourself occupied, or wait a month for Abit's RMA to get back to you.

Best of luck - I've been there - that's why I no longer use Abit or Antec (both have rather high RMA rates) and I am loaded with an APC UPS.

Best of luck - keep me informed.

 

[ibbilbo]

Thanks Elemental,
I'll try what you suggest when I pick up a new PS today.
Also I remember talk of a Trojan virus in the leaked 6.31 Detonator drivers. Any chance the rumor could be true? And could a virus do what I'm experiencing???
This REALLY sucks!

 

[beer]

It's not possible - the exception might be CIH but that was not the virus supposidly leaked, and I think it was all a rumor and false anyway.

Let me know.

 

[ibbilbo]

Bumping back up. Helllllpppppp.

 

[Mikewarrior2]

A Busted POwer Supply can definately take out a motherboard(I witnessed this firsthadn on an old k6-2 system).

Follow Elemental007's instructions to try to get the sucker to post. If not, I think you're out of luck.

And, if you are looking at getting a new power supply, do look at the Enermax Units. The quality of enermax power supplies is superb.

Antec's are good power supplies(and no, they are nto the best cause Anandtech said so). Enermax's are in a different league.

Mike

 

[Edgy]

By god yes, power supply CAN fry your mobo and cpu.

Had same thing happen to my new kt7raid and tb800 3 days after purchase.
No post, beep, nothing. cpu w/new mobo nothing. mobo w/new cpu, fried the new cpu (voltage reg for the fried mobo was the culprit) aargh! new cpu, new mobo, old ps, nothing.

Replaced the ps, mobo, cpu, everything works great.

dumb way to learn, but all happend at mom & pop store where I had them assemble it, so they replaced my mobo, cpu, and ps.

gluck