Lepa G1600W PSU for Antminer S7 - Can't power it on ! Bounty 0.05 BTC

[VirosaGITS]

I've burn 2 LEPA 1600PSu's in my S7, the first one worked for about 5 minutes, the second not even 1, replaced it with an EVGA 1300.
Its a shitty PSU, Tupsu warned me, he have burn some too, but I had already purchased it...
IMO you should get a server PSU or an EVGA G2.

No argument there. Multi-rail PSU is a dead giveaway. Its not too bad according to Johnny guru but even the EVGA g2 1300w would of most likely been a much better pick.

[vortexz]

true, lepa is a shitty PSU

[vortexz]

I set the S7 to 675 MHz and it's running stable ... for now
Hopefully the shitty lepa can handle an S7 b8 at 675 Mhz...

[VRobb]

Oh great, I just bought this PSU for my S7 that I will be powering up tomorrow night and NOW I read this thread... 

Well, I'll give it my best shot and report back on whether or not I can get it running properly.  I will say that I'll be UC the S7 slightly to keep electrical $$ within reasonable limits.

At least it was an "open box" special from Frys, and I've never returned things to Frys, eh? 

[VirosaGITS]

Oh great, I just bought this PSU for my S7 that I will be powering up tomorrow night and NOW I read this thread... 

Well, I'll give it my best shot and report back on whether or not I can get it running properly.  I will say that I'll be UC the S7 slightly to keep electrical $$ within reasonable limits.

At least it was an "open box" special from Frys, and I've never returned things to Frys, eh? 

It would work just fine if you properly connect the right connectors to the right rails. Its a hassle having to balance the rails, but it will work just fine if you do.

[VRobb]

Oh great, I just bought this PSU for my S7 that I will be powering up tomorrow night and NOW I read this thread... 

Well, I'll give it my best shot and report back on whether or not I can get it running properly.  I will say that I'll be UC the S7 slightly to keep electrical $$ within reasonable limits.

At least it was an "open box" special from Frys, and I've never returned things to Frys, eh? 

It would work just fine if you properly connect the right connectors to the right rails. Its a hassle having to balance the rails, but it will work just fine if you do.

Thanks, I figured as much but it's just one more thing to worry about!

Cheers, keep calm and mine on!

[VRobb]

Ok, got it up running and so far it is stable. I am running UC at 543 instead of stock 700 so there's a drop in power need there for sure.  Looking at how the lepa has 6 output sockets assigned to 4 30A rails is a bit strange and if I wasn't running UC I'd wonder if this unit could handle it based on how the rails are, obviously, doubled up on some of the outputs...

Probably going to return this rube Goldberg designed psu and go with a better unit.  But so far it's running ok, no smoke or any bad smells (yet)!!

[VirosaGITS]

Ok, got it up running and so far it is stable. I am running UC at 543 instead of stock 700 so there's a drop in power need there for sure.  Looking at how the lepa has 6 output sockets assigned to 4 30A rails is a bit strange and if I wasn't running UC I'd wonder if this unit could handle it based on how the rails are, obviously, doubled up on some of the outputs...

Probably going to return this rube Goldberg designed psu and go with a better unit.  But so far it's running ok, no smoke or any bad smells (yet)!!

The unit is fine, it can run an S7 full speed. The fact its multi rail is annoying but you should have no problem if you do something like 3 individual rails on double and then split a 4th in the 3 blades.

Running it at half load is not necessary.

[mavericklm]

Tested for few minutes and is ok. The air coming from psu at the lower part was a bit hot...
Low error rate! only 1 in ~5minutes of test

http://imgur.com/a/25CsS

[VRobb]

Been running a week at ~75% max hash rate (for electrical $$ reasons really, not the PSU) and so far all is well.  Got less than 0.0001% HW and seems fine.
Guess I'll keep it.
YMMV

[VRobb]

Well after about a year and a half the Lepa died on me...  The last year it was only running an R4 so nowhere near it's max output, and even less than the S7 it was originally powering.  I find it kinda surprising it would crap out since I wasn't redlining it and it was kept cool indoors since the lack of noise allowed it!
Like I often say, "buy it cheap, buy it twice!"