Quote from: lightfoot on January 04, 2014, 03:31:57 PM

Quote from: synapse on January 04, 2014, 05:47:40 AM

This one that blew up had the older style chips. no 5v at the 5v test point.
Out of curiosity I checked my other Jally that has two of the new style of chip. That one has 5v present at the 5v test point.

Hm. I've seen that too. My weird jally didn't have 5 volts but it seems to be running well now. Maybe they put it in sometimes.

Quote

I think i'll just RMA it.

I have 5 ASIC chips on the way so i'll pop 3 on the replacement and two on my other one. (this is how i came accross this thread in the first place. I remembered the post with the blown u15 pics)

That sounds best. I've got 4 chips outside in the mailbox I think; I'll put one of them on my weird jally, taking it to 5 and the other on my other new jally taking it to six on an old-style heat sink. I think that might wind up being a problem, but my water block is not coming till Monday at the earliest.

And I get to look at another blown board. Fun!

Speaking of chip placements, put another one on a 2 chip jally for a friend, no problems. I'm actually waiting 5 minutes with preheat now, until I see the faint wisp of smoke/flux come up, then a count to 90 with the air tool at 450c. The hardest part is placing the chip perfectly on the balls, but I have had a 100% success rate since I started using a loupe to verify all the balls.

C

well dragging up an old post, I got my RMA replacements today. Pretty happy with BFL as they gave me two 10ghs 3 chip units with 1.2.9FW rather than two 5ghs! makes up for the stupid international prices Australia post charges.
Also regarding the power supply comments earlier on, i got one of the usual 13v 6 amp shit power supplies with one unit, but the other came with a massive 12v 10 amp supply that is about double the size of the other (and has an earth pin too)

And they show up as BAL's rather than BAJ's in cgminer.
Looks like BFL have been silently studying and taking notice of what this community is doing.

synapse

Posts

Merits