Silverstone ST60F PCIE connector power issues

[grss1982]

So I've had this Silverstone PSU since 2011: http://www.silverstonetek.com/legacy...el=ST60F&tno=2

It recently "died" and took out my Radeon 7950. This power my sig rig.

Here's the odd thing though, when I remove the 7950 rig boots up fine but when I plug in a spare GTX 660 Ti the rig does not power up. Motherboard gives out beeps about bad ram/video.

But if I use onboard video of the rig or a lower powered video card like a 512MB Radeon 5670 DDR5 or a Geforce 7600GS it works fine.

Am I correct to assume that this has something to do with the PCIE connectors? Maybe they over current or under current or whatever the term is.

Not really well versed with PSU repair but I can fix mice with double click issues with a soldering iron and a solder sucker.

Any help on what I need to do would be appreciated. Oh by the way no bulging capacitors so far.

[jazzie366]

Re: Silverstone ST60F PCIE connector power issues

So I've had this Silverstone PSU since 2011: http://www.silverstonetek.com/legacy...el=ST60F&tno=2

It recently "died" and took out my Radeon 7950. This power my sig rig.

Here's the odd thing though, when I remove the 7950 rig boots up fine but when I plug in a spare GTX 660 Ti the rig does not power up. Motherboard gives out beeps about bad ram/video.

But if I use onboard video of the rig or a lower powered video card like a 512MB Radeon 5670 DDR5 or a Geforce 7600GS it works fine.

Am I correct to assume that this has something to do with the PCIE connectors? Maybe they over current or under current or whatever the term is.

Not really well versed with PSU repair but I can fix mice with double click issues with a soldering iron and a solder sucker.

Any help on what I need to do would be appreciated. Oh by the way no bulging capacitors so far.

Doesn't sound power related, sounds motherboard related. Not sure what it'd be though.

[grss1982]

Re: Silverstone ST60F PCIE connector power issues

Doesn't sound power related, sounds motherboard related. Not sure what it'd be though.

Just to put closure to this thread. The 7950 also died a few days later after further testing. The 7950 when placed in a friend's working rig with a more than capable power supply would have it's fans spin up and then turn off and thus not boot the rig at all. It was apparently the PSU that caused all this. It killed itself and then the 7950.

It took me a while to save up some money and have a running system again. I'm now using the rig you see below with a new Seasonic PSU.

[Quaddro]

Re: Silverstone ST60F PCIE connector power issues

There are possibilities.
1. Weak part of diode in the secondary side. Usually make loud screech sound.
2. Bad capacitor.

Common happen in psu with a continuous high load.

Just open the psu's cover, and see the inside.