PSU - 20+4 required?

Belfast_tech

Belfast_tech

Belfast_tech

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24 Feb 2011
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Hope something is able to help me with a PSU query:

Unfortunately came in this morning to find our proxy server had been fried over the holidays... looks to me like a PSU issue as the NIC lights + optical mouse light up but no fans / not even a hint of power when the power is switched on. I think so anyway - hopefully it's not the motherboard!

Anyway I have an old PSU from another PC - it's got a slightly different pin connector config though:

Blown up PSU: 1x 20+4, 1x 4, 4x MOLEX, 1x FLOPPY, 1x SATA
Possible replacement PSU: 1x 20, 1 x 4, 2 x MOLEX, 1 x Floppy...

Now, the question is: both the 20+4 and the 4pin plug were plugged into the old motherboard... but the possible replacement PSU only has 1 x 20 and 1 x 4... I take it this isn't compatible? If it is ok - which 4 would I leave out? The 4 plugged in after the 20 pins or the 4 elsewhere on the motherboard?


The other PSU I have spare is perfect but only has SATA connectors & the HDD in the old server is Molex instead. Dammit!

Hope something can advise me thanks!
 
thanks for that link that looks perfect - the spare PSU seems to be the exact same voltage - 230V switchable power supply, and both are old enough!

Both have the same input rating really: old one 50Hz-60Hz, new one 47Hz - 63Hz, but new one doesn't have output rating specified.

Might unfortunately have to use a local competitor to get it immediately as the lack of Internet is a problem here!
 
I would expect them to have the same input voltage but you really need to find out the output in watts. If there's a make and model, then you'll need to Google to find out the information you require.
 
Admiral Huddy said:
I would expect them to have the same input voltage but you really need to find out the output in watts. If there's a make and model, then you'll need to Google to find out the information you require.
Click to expand...

Just looked on Google for the information on the old one it says: Output power 350W, on the "spare" replacement one it says 160W.

Is this a major issue? It's just to literally keep us going for 2 days until an identical replacement arrives.
 
Just found another PSU with 280W output power.. but it's only got SATA connectors and the HDD is molex connected... so I've found a SATA male to Molex female adapter too - that might work better temporarily.
 
It depends on how much the combined components inside draw from the PSU. If you already have a 350W PSU, then I would stick to that as an absolute bare minimum. You may get away with a 280W as a temproary measure but if you start running into problems, such as sudden restarts, then you know the power draw is too much.
 
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