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Author Topic: Are all of the BFL power bricks complete shit?  (Read 3274 times)
yochdog
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July 06, 2012, 03:14:12 AM
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just wondering if anyone else is wondering this......

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July 06, 2012, 03:29:26 AM
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The answer...yes

Had two fail out of a batch of 8. Got two replacements, and within a week a third started to turn on and off intermittently. Got myself a Seasonic PSU after that.
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July 06, 2012, 03:30:03 AM
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Even judging by how hot they get.. it makes you feel like something's just not right. 

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yochdog
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July 06, 2012, 03:35:47 AM
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I am afraid I am gonna burn down my fucking house. 

Any good advice on where to buy a good replacement?  I have mine spread out, so doing a PSU is not exactly efficient.....

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July 06, 2012, 06:32:02 AM
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Is there a good guide for using an ATX PSU with singles. Cablez is selling ready wires but I think they are too expensive.
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July 06, 2012, 07:00:00 AM
 #6

The two I've got are still working fine (knock on wood).  They do run hot, but they don't seem to be any hotter than my laptop power brick.  I am running them on 220V, though.  Not sure if that makes a difference.
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July 06, 2012, 07:02:33 AM
 #7

I have some metal between my bricks until I get them set up with a proper PSU. I tried melting solder with them with no success, so hey, there's that Tongue

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July 06, 2012, 08:08:46 AM
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Is there a good guide for using an ATX PSU with singles. Cablez is selling ready wires but I think they are too expensive.

You'll spend as much in time & parts + research, as buying your cables........................if not more.

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July 06, 2012, 01:52:56 PM
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If you have more than 1 fpga board that are 12V fed...you need to get a modular psu like ones provided by corsair. The research would consist of google for which wires to use. The parts would consist of a bag of screw terminal 12v barrel connectors ($5). Bare minimum tools required, your teeth and a butter knife, possibly a multi meter to make sure your not getting trolled as to +/- of your modular psu wire sets. We are talking more time to flash a cainsmore card than to set up a power supply that can potentially feed all of your fpga's, increase efficiency, and decrease heat load.
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July 06, 2012, 02:01:16 PM
 #10

Guys, I know I could use a PSU, but like I said, I have these things spread out EVERYWHERE......They are not consolodated. 

I am looking for a quality replacement power brick......wondering if anyone has a good source. 


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July 06, 2012, 02:21:30 PM
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I have these things spread out EVERYWHERE......They are not consolodated. 

I think you are seeking the answer to the wrong problem then. But, regardless.... amazon has a lot of cheap brand name high amp power bricks for monitors, printers, and laptops.
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July 06, 2012, 02:28:20 PM
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I have these things spread out EVERYWHERE......They are not consolodated. 

I think you are seeking the answer to the wrong problem then. But, regardless.... amazon has a lot of cheap brand name high amp power bricks for monitors, printers, and laptops.

help me out then....what is the correct problem? 

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July 06, 2012, 02:30:08 PM
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Mean Well makes high-quality external power-brick adapters:
http://www.meanwell.com/search/GS120/default.htm


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yochdog
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July 06, 2012, 02:35:26 PM
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Mean Well makes high-quality external power-brick adapters:
http://www.meanwell.com/search/GS120/default.htm



Sweet dude.....thanks!

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July 06, 2012, 02:43:09 PM
 #15

Mean Well makes high-quality external power-brick adapters:
http://www.meanwell.com/search/GS120/default.htm



Sweet dude.....thanks!

Those little things are 87% effecient? Not bad.

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July 06, 2012, 02:48:54 PM
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I know they are Mean Wells and everything, but what's the actual efficiency of the stock brick? I'm betting it isn't too far different from 87%, and Inaba tested one with a clamp meter somwhere, just can't find the post atm. All I am saying is, the MW is rated LESS (102 watts instead of 120) than the stock brick, and so it might get just as hot.

Mine gets hot, but if you put it in the exhaust stream of the Single, it keeps cool. I don't think it's going to catch anything on fire.

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yochdog
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July 06, 2012, 02:55:24 PM
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I know they are Mean Wells and everything, but what's the actual efficiency of the stock brick? I'm betting it isn't too far different from 87%, and Inaba tested one with a clamp meter somwhere, just can't find the post atm. All I am saying is, the MW is rated LESS (102 watts instead of 120) than the stock brick, and so it might get just as hot.

Mine gets hot, but if you put it in the exhaust stream of the Single, it keeps cool. I don't think it's going to catch anything on fire.

The one in question gets so hot it shuts down.....the single will only mine for about 10 minutes. 

The damn thing is bulging even! 

I am just gonna run down to the local electronic store and try to find a replacement. 

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July 06, 2012, 02:56:54 PM
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I know they are Mean Wells and everything, but what's the actual efficiency of the stock brick? I'm betting it isn't too far different from 87%, and Inaba tested one with a clamp meter somwhere, just can't find the post atm. All I am saying is, the MW is rated LESS (102 watts instead of 120) than the stock brick, and so it might get just as hot.

Mine gets hot, but if you put it in the exhaust stream of the Single, it keeps cool. I don't think it's going to catch anything on fire.

The one in question gets so hot it shuts down.....the single will only mine for about 10 minutes. 

The damn thing is bulging even! 

I am just gonna run down to the local electronic store and try to find a replacement. 
OK well yeah, that's bad.

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bitcoindaddy
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July 06, 2012, 03:41:35 PM
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The power supplies on the new SC (ASIC) Singles are supposed to be built in. I hope BFL doesn't spec some piece of crap for those since they will be much harder to circumvent.
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July 06, 2012, 03:42:54 PM
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The power supplies on the new SC (ASIC) Singles are supposed to be built in. I hope BFL doesn't spec some piece of crap for those since they will be much harder to circumvent.
Where did you hear that from? Just interested, especially seeing as we don't even have any pics or renders yet.

Mining Rig Extraordinaire - the Trenton BPX6806 18-slot PCIe backplane [PICS] Dead project is dead, all hail the coming of the mighty ASIC!
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