Stock power supply can handle up to 3 chips, beyond that it gets too hot to use properly.
Wish I had my 3 cable PCIx thing, need to get that shipped ASAP. In the meantime I'm starting to cut the cords and splice them onto the Corsiar 500.
C
Topic: BFL Black Friday order arrived, thoughts and boosts.... (Read 1347 times)
I'm not using the supplied PSUs - they're junk. I cut the lead off and soldered to it a Molex connector, and run it off the ATX PSU that runs my Blades.
Mine was clean, fan was blowing up though, that's been flipped.
I'm using the power pack that came with it, doesn't seem to be getting hot though. Is it fluctuating power output? Could you provide picture of what you did?
Thanks
That's the first I've heard of anyone getting dusty equipment from BFL, all of the units I got including the ones from the black friday sale were spotless. Perhaps they're rounding up all the stuff laying around in the office to close out the last of the orders.
I was surprised, as the first one was spotlessly clean. This newer one is obviously dusty - there's dust in around the chips and JTAG headers on the board as well as the dust on the inside of the case. I can see a bit of fluff stuck to the heat pads under the heat sink, if I look with a bright flashlight.
Perhaps someone was brushing the floor while it was running in the 'factory'.
I got two Jalapenos, one is a 5GH early June order, one is a 7GH late June order.
The 5GH one was nicely put together, clean inside, using the new black aluminium heat sink, and the fan blowing down. The heat sink had the gap for the JTAG connector manufactured in to it. This one does 5.1GH.
The 7GH one was dirty. The outside of the casing looked used, and inside there was quite a bit of dust on the inside of the casing. The fan was new, however. The heat sink was a tatty looking silver aluminium unit, which had obviously been modified with a Dremel to provide access to the JTAG. The cut area had been given a quick spray with black paint (I assume to stop any aluminium dust from floating about). This unit does 7.9-8.1GH depending on how cool it is on initial power-up.
I'm not using the supplied PSUs - they're junk. I cut the lead off and soldered to it a Molex connector, and run it off the ATX PSU that runs my Blades.
The 5GH one was nicely put together, clean inside, using the new black aluminium heat sink, and the fan blowing down. The heat sink had the gap for the JTAG connector manufactured in to it. This one does 5.1GH.
The 7GH one was dirty. The outside of the casing looked used, and inside there was quite a bit of dust on the inside of the casing. The fan was new, however. The heat sink was a tatty looking silver aluminium unit, which had obviously been modified with a Dremel to provide access to the JTAG. The cut area had been given a quick spray with black paint (I assume to stop any aluminium dust from floating about). This unit does 7.9-8.1GH depending on how cool it is on initial power-up.
I'm not using the supplied PSUs - they're junk. I cut the lead off and soldered to it a Molex connector, and run it off the ATX PSU that runs my Blades.
That's the first I've heard of anyone getting dusty equipment from BFL, all of the units I got including the ones from the black friday sale were spotless. Perhaps they're rounding up all the stuff laying around in the office to close out the last of the orders.
I got two Jalapenos, one is a 5GH early June order, one is a 7GH late June order.
The 5GH one was nicely put together, clean inside, using the new black aluminium heat sink, and the fan blowing down. The heat sink had the gap for the JTAG connector manufactured in to it. This one does 5.1GH.
The 7GH one was dirty. The outside of the casing looked used, and inside there was quite a bit of dust on the inside of the casing. The fan was new, however. The heat sink was a tatty looking silver aluminium unit, which had obviously been modified with a Dremel to provide access to the JTAG. The cut area had been given a quick spray with black paint (I assume to stop any aluminium dust from floating about). This unit does 7.9-8.1GH depending on how cool it is on initial power-up.
I'm not using the supplied PSUs - they're junk. I cut the lead off and soldered to it a Molex connector, and run it off the ATX PSU that runs my Blades.
The 5GH one was nicely put together, clean inside, using the new black aluminium heat sink, and the fan blowing down. The heat sink had the gap for the JTAG connector manufactured in to it. This one does 5.1GH.
The 7GH one was dirty. The outside of the casing looked used, and inside there was quite a bit of dust on the inside of the casing. The fan was new, however. The heat sink was a tatty looking silver aluminium unit, which had obviously been modified with a Dremel to provide access to the JTAG. The cut area had been given a quick spray with black paint (I assume to stop any aluminium dust from floating about). This unit does 7.9-8.1GH depending on how cool it is on initial power-up.
I'm not using the supplied PSUs - they're junk. I cut the lead off and soldered to it a Molex connector, and run it off the ATX PSU that runs my Blades.
What is it you got?
My order arrived today as well. I got the 5GH box, interestingly enough it's running at 12.6GH/s (least my miner is reporting it at 12682.863MH/s
I take it I have a different model then you, I only have one light on mine. No dots as you describe. But it is running very hot, currently at 76c. So I'm going to take the sides off and flip the fan like others have mentioned and see what that does.
If this is running at 12, I'm happy. I had heard rumors they were using high yield chips in the boxes since they had no 5's.
My order arrived today as well. I got the 5GH box, interestingly enough it's running at 12.6GH/s (least my miner is reporting it at 12682.863MH/s
I take it I have a different model then you, I only have one light on mine. No dots as you describe. But it is running very hot, currently at 76c. So I'm going to take the sides off and flip the fan like others have mentioned and see what that does.
If this is running at 12, I'm happy. I had heard rumors they were using high yield chips in the boxes since they had no 5's.
Well, my BFL order came. Minus the $20 PCI-E cable, I guess it's on back order and I'm glad that they didn't wait for it. But it does mean I have to use the BFL cables for the moment....
Anyway, some thoughts: The miners do work, and seem to be working pretty well. There were three, well packed, clean, and new. Fans all blow down, they only have two drilled holes in the bottom of the back plate to see the LEDs, and they all use the newer style fan mounting which is much better than those stupid spacers of yore.
Put them all online and tried to read them with the BFL Commport tool. Well well well, they all do not respond, the tool thinks they are mining. Whatever the software load it looks to be different than normal. That's odd, I'll have to reflash them but I thought I would take a look at the statistics first.
Speeds are not bad. One is at 8, one at 7.7, one at 7.0. The two with green dots on the back are the fast ones, the red dot is a slower one. I can see how BFL is doing things.
Taking them apart they use the normal new style heat sink, which blocks the front vents somewhat. Yuck, I don't recall if my older ones do that, will have to check. Pulling a heat sink showed a thick pad of heat sink compound (ie: krud), I took that off and put on dabs of Radio Shack heat sink compound. Much better.
These things run hotter than my older jallies, not sure why. Temps were almost 50c, blowing down on the FTDI chip is probably a good way to fry it. Switched one of the fans, temp is at 45c. Bit better but still hot, odd.
Took one of the units and put it on the torture table for another chip from lentbt. Two chips came today, 4 more ordered today, guy is selling very good stuff. I recommend. Chip went on fine with the preheat to 350f for 5 mins, then 450c for 90 seconds this time after using a thin coating of flux and aligning the chip. Don't go by the markings, use a magnifying glass to look at the balls. They must be aligned perfectly, otherwise you're wasting a chip.
Put fan on pointing down and left sides off. Unit is at 48c, hashing 12gh, three lights on back. Nice. Will take another one to 12gh tonight, then when I get the extra chips will probably boost both to 16gh then do something else with my remaining chips.
Overall, good product, but running hotter. I'd recommend flipping the fan if you're running it with the sides on, otherwise take the sides off and look into replacing that crap on the bottom of the unit.
C
Anyway, some thoughts: The miners do work, and seem to be working pretty well. There were three, well packed, clean, and new. Fans all blow down, they only have two drilled holes in the bottom of the back plate to see the LEDs, and they all use the newer style fan mounting which is much better than those stupid spacers of yore.
Put them all online and tried to read them with the BFL Commport tool. Well well well, they all do not respond, the tool thinks they are mining. Whatever the software load it looks to be different than normal. That's odd, I'll have to reflash them but I thought I would take a look at the statistics first.
Speeds are not bad. One is at 8, one at 7.7, one at 7.0. The two with green dots on the back are the fast ones, the red dot is a slower one. I can see how BFL is doing things.
Taking them apart they use the normal new style heat sink, which blocks the front vents somewhat. Yuck, I don't recall if my older ones do that, will have to check. Pulling a heat sink showed a thick pad of heat sink compound (ie: krud), I took that off and put on dabs of Radio Shack heat sink compound. Much better.
These things run hotter than my older jallies, not sure why. Temps were almost 50c, blowing down on the FTDI chip is probably a good way to fry it. Switched one of the fans, temp is at 45c. Bit better but still hot, odd.
Took one of the units and put it on the torture table for another chip from lentbt. Two chips came today, 4 more ordered today, guy is selling very good stuff. I recommend. Chip went on fine with the preheat to 350f for 5 mins, then 450c for 90 seconds this time after using a thin coating of flux and aligning the chip. Don't go by the markings, use a magnifying glass to look at the balls. They must be aligned perfectly, otherwise you're wasting a chip.
Put fan on pointing down and left sides off. Unit is at 48c, hashing 12gh, three lights on back. Nice. Will take another one to 12gh tonight, then when I get the extra chips will probably boost both to 16gh then do something else with my remaining chips.
Overall, good product, but running hotter. I'd recommend flipping the fan if you're running it with the sides on, otherwise take the sides off and look into replacing that crap on the bottom of the unit.
C
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