Faulty 620w psu

[No.72]

I bought your excellent 620w hx series psu from scan recently. But it does not work, I made a earlier thread about this on scan's care page. The issue will most probably be sorted out by scan very shortly but I was wondering why this problem could occur?

I am 100% sure all of my components are compatible with the psu before buying.
The story go's like this;
I connected every thing to all of my components minus two fans.
I then turned the power on and it worked (this is with all other external cabels
not plugged in eg. monitor cable)
I then removed the power lead and turned the power switch to off on the psu, I then pressed the pc switch to remove excess current from the pc.
I then followed this by connecting the two fan power connectors.
I then reconnected the back power lead to the psu and turned the switch on the psu on.
I then try'ed to turn the pc on but nothing!

I am sure all connectors were plugged in correctly (I checked several times)

PS. when I have the psu switch turned to on there is a constant ticking!
when I press the pc switch the ticking stops but pc does not start.
I find this very bizarre, as at first every thing worked but then suddenly not.
I have made sure all power connectors were connected properly.
thankyou

[Yellowbeard]

Just so I am clear, do you have the 24 pin ATX cable and the secondary power plug (either 4 pin or 8 pin, dependent on your MOBO) plugged into the MOBO? Also, have you tried clearing the bios using the CMOS (or CLRTC) jumper?

And, can you list your complete system specifications?

[No.72]

Thanks for replying
I have the 24 pin and the 4 pin mobo connectors (yes both connected properly). The system spec doesn't matter as its going in a completely different system. I made this thread because, I wondered if anyone had any ideas why it didn't work, and the strange happenings I experienced afterwards.

Well anyway this is the system I set it up with (had the problems with)
amd 3200+
msi amethyst-m chipset rs480
1gb of corsair pc3200
7600gt
160 gb IDE sedgatte barracuda
thanks

[Yellowbeard]

Just for troubleshooting, try this:

Disconnect all connections from the PSU except for 1 connector with the standard 4 pin connectors. Connect the 2 or more fans you have to the PSU. Then, "jump start" the PSU using this diagram:

http://www.gideontech.com/guides/psu_powerup/

All you need is a small piece of wire.

[No.72]

Thanks but I have already tried that one , it didn't work, it is a dead one . O well. Have you any ideas what the clicking might be?
It repeats every half second, with the same sound. It's a top psu btw for any people who are reading this, its worth every penny.

[Yellowbeard]

If the fan is turning at all it could be something hitting the fan. Also, it could be the active PFC circuit.

[dinsdale]

I received the same PSU today and had a very strange experience. I'm upgrading my mobo to a DFI Lanparty RDX200 CF-DR. The board is not yet fitted in my case because it is very picky about power supplies and would not power up with my existing 465W Enermax, although it did power up with an old 235W PSU I had lying around (minimal installation, just RAM, PCI video, CPU and floppy to run Memtest).

I bought the Corsair HX620 because it is known to work well with power hungry DFI boards, so this morning I gave it a quick test by connecting the 8-pin and 24-pin connectors to the DFI board and it started up just fine. I wanted to test my current Asus A8N-SLI Deluxe with the new PSU, so fitted it to the case and connected my drives (2 x WD2000JD SATA, 2 x IBM 80GB IDE, 1 DVD rewriter, 1 CD rewriter and 1 floppy).

When I switched on the PSU the mobo standby LED illuminated but when I pressed the power button there was a loud pop and a blue flash from the CMOS battery area. The LED went out and stayed out. I can't believe the mobo and other components survived but it's working ok so far after a BIOS reconfiguration with the old Enermax refitted.

I tested the Corsair PSU again with the DFI in its cardboard box and there was no sign of life from it. I subsequently tested the PSU by shorting the green/black wires but there was no action from the fan so I didn't bother checking any further with a multimeter.

[Yellowbeard]

When you tested the PSU did you have anything connected to it to supply a load? In some cases, they won't start without some sort of load on them. Also, have you looked at the CMOS jumper on the ASUS board? That's my guess as to what popped if the MOBO is still working.

[dinsdale]

The last test with the PSU was with no load and all the modular cables disconnected. I'll try again now with a HD. The CMOS jumper did not move and appears to be intact. I'm pretty sure that the PSU has died because it can no longer power up the DFI board as it did this morning.

[dinsdale]

Just tested with a hard drive and green/black wires shorted....no go.

[Yellowbeard]

If you have the option, try speaking with your retailer about an exchange. If they cannot help you, please post HERE using the TSX link. Please tell them that Yellowbeard referred you from the Hexus forum.

[dinsdale]

Thanks for your help. I'll phone the retailer when they open tomorrow.

[Yellowbeard]

Thanks for your help. I'll phone the retailer when they open tomorrow.

That is what I would suggest first. Currently, our UK/EU RMA process involves shipping it to us in California USA so obviously it would take more time that way. However, if your retailer cannot help, we will be glad to do so.

Good luck with a speedy exchange.

[Defenestration]

I'm actually considering an HX620 PSU myself, but reading that it has to be shipped back to California is a bit off-putting, to say the least. Who pays for the PSU to be shipped to/from California ?

[Defenestration]

Any chance of a reply to my question from a Corsair rep ?

[Yellowbeard]

I am the Corsair rep and not ignoring you intentionally. Keep in mind that it is easy to overlook posts stuck at the tail end of a thread from January. If you have questions, feel free to start your own thread.

The buyer pays shipping on an RMA, we pay to ship it back. In the future, I expect that we will have UK/EU RMA processing but, I don't have a time frame.