Dual PSUs and PCI-E GPUs: It works.

[K404]

Bought an el cheapo PSU from the bay and hooked it up to me trusty Tagan:







So my primary PSU is powering....the mobo and CPU

My 2nd PSU is powering my opticals, HDDs, fans, pump and PCI-E plug. Might move some stuff back over to the primary.

Still to try 3D benching, but I expect no issues. The quality of the 2nd PSU is my only doubt, and thats not a problem for other users.

If anyone has any info/input on this or warnings that i`m sailing into trouble with PCI-E plug power regulation strain, please speak up.

This is only suitable for GPUs with their own onboard voltage regulation.

Kenny

 

[K404]

Please provisionally ignore this...

My 2nd PSU stopped..I think it took the HDDs with it. I`m not sure why, but please dont try this, just in case

 

[LiViNgL@RgE]

It could be because there was no load on the 5V rail! Most PSU's need a slight load on all rails!!!

 

[K404]

yea, was thinking that. PSU is very dead now I reckon, tho the disks are ok. Tried adding power resistors across the 5V and 3.3V rails, as well as CCFLs for the 12, but PSU died, or was already dead. All I get is a 5VSB signal, and a quick blast from the fan

More tests have me thinking I aint suffering from not enough power, but i`m scouting for an uber cheap but not totally rubbish PSU to try again. I WILL get this working!