GA8VM533-RZ V-core drop after POST

[stng]

Gor myself a Gigabyte GA8VM533 RZ,after troubleshoot.found out
one of the VRM mosfet shorted,the part no is FDD7030L ,i don't have
a actual replacement part so i get a nearer substitude 60N03H
and not sure is it becoz of not proper replacement part after i fired
up it POST but freeze at POST screen..then i check the V-CORE
and found out the V-CORE will drop from 1.75V to 0.08V ..

guys any idea what's coz the V-CORE drop ? anything to do
with bad cap ..have try change the cap but still same..

[gonzo0815]

Re: GA8VM533-RZ V-core drop after POST

probably another Fet is shorted, may be a cap is shorted too. Wich brands of caps are on this board?

[davmax]

Re: GA8VM533-RZ V-core drop after POST

It is wise to change MOSETs in pairs. A short in one will damage the other. Also it is possible that the driver chip may be damaged. Can be a tough one.

[stng]

Re: GA8VM533-RZ V-core drop after POST

Can't continued further as suspacted one of the PWM chip that controlled the
Mosfet spoiled ..