Now *here's* a good mystery - dead Mobo and burning CPU?

[mmarcuse]

Here's the vitals -

MSI K7TPro Mobo
AMD 1 Ghz 100FSB CPU

Flip the switch, and I get full red LED's. Fan spins for about 5 seconds (usually), then the whole thing shuts itself off.

So I know what you're thinking - CPU, right? Wrong. Brand new tested CPU does the same thing. I've cleared CMOS, pulled all cards, reseated RAM/CPU. Here's the kicker - I have a heatsink on the CPU, but thefan isn't working (shorted or something). But within 10 seconds of flicking the switch, I get a bit of a burning smell in the case. If it'll stay on long enough (rarely), within 20 seconds it's too hot to touch the bare CPU. But how could this be a heat problem, if the CPU isn't even posting from a fresh start?

Is my mobo defective, frying the CPU? The key question I have, though, is - how long should it take a 1Ghz with a sizeable heatsink but no fan to heat up to untouchable?

Ahhh...the mystery! Anyone want to venture a guess on this one?

THANKS!

 

[blaznee]

It's unfortunately quite a lot faster than you think.. A t-bird with no cooling lives for no more than 6-10 seconds.. And if you're unlucky even less.. This sounds mostly like a motherboard problem tho'.. But that doesn't count out the possibility of it frying your cpu in the meantime!


/Blaznee

 

[shathal]

Well, I'd assume that CPU is fried well & propper - like blaznee said, CPU-frying is a matter of seconds (quite litterally).

Could still be a mobo problem - the VRM's might be off & thus over-volting the CPU which doesn't help it at all. Fried/defective motherboards are not unknown to kill off CPU's - it does happen.

Sorry mate - unpleasant news I knew

 

[hairygit]

WADDYAMEAN by it is almost too hot to touch the cpu??????????????????

Stop tickling the damned thing for a start.

Firstly - in the Bios there may be a safety 'shutdown' feature if the cpu gets to a certain temp.....not sure whether your mobo has that. If the cpu is too hot it probably is because your fan isn't working. If that is the case, you had better hope that the safety shutdown works otherwise you've burnt out the cpu.

good luck

 

[mmarcuse]

I assume my original CPU is shot, it doesn't work anymore. But the one I'm using now is from Fry's, and it's within 15 days of purchase...hehehe. I'm gonna mess with this thing 'till it hurts