Burnt out smell from PSU

[njaiswal]

I am running 4 R9 290 cards on a 1500W PSU 24/7 (mining altcoins)

Last 2 days the system freezes itself, but comes back up after a restart.

Today the burnt out smell got more than yesterday, obviously system was running fine before I stopped it due to caution.

Is it normal to get this smell (no smoke, not a very strong smell, but can tell some plastic/wire burnt out)

As I already said, the system was working fine with once a day freezing up, which might or might not due to PSU.

Any advice from experts please.

PSU: Silverstone Strider Series 1500 Watt (SST-ST1500)

thx
Nishant

 

[chris987]

no that doesnt look (smell) right man.is the psu ventilated properly.are listening any sounds too?

 

[njaiswal]

ok. found the culprit. A semi burnt out PCI-E power connector where it goes in the PSU socket.
Don't know if the power cable faulty or PSU faulty.

 

[chris987]

ok change it. if problem persists try triple crossfire if with less load(gpu) works fine under stress test lets say fuurmark, then might be the psu!

 

[njaiswal]

I have a spare PSU, changed the PCI-E power cable and PSU both.
System up and running now.
However monitoring the PSU temp (hand behind the exhaust vents) seems to be very hot. Don't have a laser temp gun, so cannot tell, but seems very hot to hand. 1500W PSU should take the load of 4 r9 290 cards (230W each), can any one comment on the built quality of this brand of PSU please.

PSU: Silverstone Strider Series 1500 Watt (SST-ST1500)

thx

 

[chris987]

the specs look ok. to be sure if it is what ti says check it here

http://www.tomshardware.com/reviews/power-supply-oem-manufacturer,2913-3.html