Enermax liberty, wont boot.

[chuckskull]

Sitting next to me I have an enermax liberty 620w. Which completely refuses to boot in my machine (see 'my system'). It's already been back to Scan, who claim to have tested it and have it working. They cant seem to tell me much about the testing other than they used an enermax PSU tester, this maybe?

I've tried with everything plugged in, only basic components plugged in, with the absolute bare minimum and all the combinations in between.

Everytime, the PSU just 'blipped' (fans spun for a split second etc), then died. The only time it's stayed on for more than a split second was just the motherboard connectors plugged in. Modular cable buggered maybe?

Well I'm throwing this out to you lot before I get back on the phone to scan/bung it in the bin.

[Steve B]

have you got access to a voltmeter?

[chuckskull]

have you got access to a voltmeter?

Nope, I'm currently working on scan assuration that "all voltages are present and bang on".

Might start asking around the neighbours if I cant this working.

[Steve B]

maplin sell them for like 3.50

well handy pieces of kit

[chuckskull]

maplin sell them for like 3.50

well handy pieces of kit

Not as handy as a working PSU

[Clunk]

have you already tried another psu and everything else is working ok?

[chuckskull]

have you already tried another psu and everything else is working ok?

Yup I'm posting using it now, using a ****e 420w thermaltake PSU.

[Clunk]

just a longshot, but have you got the extra 2 power connectors plugged in..the floppy and the molex? weirder things have happened

[Steve B]

get a kirby grip and pull the plastic ends off it. insert into pin 14 (green) and any of the black pins and power on the supply. does it remain on or cut out?

[chuckskull]

just a longshot, but have you got the extra 2 power connectors plugged in..the floppy and the molex? weirder things have happened

Yup tried it. Board boots fine without them too. No luck there.

get a kirby grip and pull the plastic ends off it. insert into pin 14 (green) and any of the black pins and power on the supply. does it remain on or cut out?

I dont think I have any to hand, see what I can find though.

[Steve B]

anything electrically conductive should do the trick

[chuckskull]

anything electrically conductive should do the trick

Yeah I did finish GCSE science

[chuckskull]

Stays on as long as they're shorted.

EDIT: After some more poking. The PSU stays on fine so long as only the 24 connector is connected(or just shorted, to turn it on). When it is already on, you can add all the load you like to it, BUT if you try and turn it on with even one connector attacted (even a fan). It just dies. Theres also a click when this happens, short circuit protection maybe?

Any ideas?

[Steve B]

potentially. if your confident you can open it up and see whats actually up with it. though this'll void ur warranty and be pretty dodgy as theres some big-ass caps in these new psu's. give u a right kick up the arse if you short them!

[chuckskull]

potentially. if your confident you can open it up and see whats actually up with it. though this'll void ur warranty and be pretty dodgy as theres some big-ass caps in these new psu's. give u a right kick up the arse if you short them!

I dont wanna void my warrenty just yet, £110 going down the drain aint my cup of tea. Waiting for a reply from scan, about how they tested the PSU. I have a feeling they tested the 24 pin and nothing else. When I spoke to someone last night there reply was "uhh.. we chacked the voltages", didn't inspire much confidence.

A bit more wrangling with scan and probably some with coolergiant, and then I'll consider taking it apart

[psumann]

Stays on as long as they're shorted.

EDIT: After some more poking. The PSU stays on fine so long as only the 24 connector is connected(or just shorted, to turn it on). When it is already on, you can add all the load you like to it, BUT if you try and turn it on with even one connector attacted (even a fan). It just dies. Theres also a click when this happens, short circuit protection maybe?

Any ideas?

It sounds like one of the connectors is shorting out and the short circuit protection kicks in. You can try all the connectors one at a time and see which one is bad. I'd suggest you to contact Enermax and get it replaced.