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Can two TX650w psu be this different ?

post #1 of 7
Thread Starter 
I was running four 5850 off a Corsair TX-650w, the AC load was ~7.3 amp , or ~700w DC.

When I moved the built out of it's case I swapped to antoher TX-650w (same model)

This other PSU cannot power the same four GPU and It would trip the OCP when working an hours or so with THREE GPU, total 6.5 amp (

This one has less fans and a 25w sempron instead of a quad core .

How can two TX650 PSU be so different ?

The first one was very cool and silent, albeit the load.

I guess the overload protection was broken on the first one, but damn, I prefer that.
post #2 of 7
Every PSU is different, and there are V1 and V2s out there, but running beyond the rated wattage is never a good idea, I would just be thankful that your other one didn't die from the over load
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post #3 of 7
You're well within safe limits. Probably one is defective.

Also the TX650 comes in three main versions:

CMPSU-650TX (SeaSonic S12)
CMPSU-650TX-C (Channel Well PSHII)
CMPSU-650TXV2 (SeaSonic SS-***AT)

The TXV2 being the best of the bunch by a fair margin.
post #4 of 7
lol censorship fails... gotta love them
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post #5 of 7
Quote:
Originally Posted by kill View Post
lol censorship fails... gotta love them
Nope. *** is what I wrote. Because it can be SS-650AT, SS-750AT, or SS-850AT. The *s act as a "wildcard".

I do the same for, say, SS-***ET and SS-***ES and SS-***HT, etc. And those series include SS-300ET, SS-350ES, and SS-650HT, respectively, among others.
post #6 of 7
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post
You're well within safe limits. Probably one is defective.

Also the TX650 comes in three main versions:

CMPSU-650TX (SeaSonic S12)
CMPSU-650TX-C (Channel Well PSHII)
CMPSU-650TXV2 (SeaSonic SS-***AT)

The TXV2 being the best of the bunch by a fair margin.
They're both CMPSU-650TX-C (brought on same order)

I can power two 5850 with a rather cheap 500w, so not being able to power 3 with it is quite disappointing.
(50% as useful as the first one)

thanks
post #7 of 7
Like I said, probably just defective. RMA it.
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