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[xstr8guy]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

[dracore]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

What I'm finding is that the polyfuse F3 (near the micro-usb connector) gets really really hot - finger burning.  Is yours like that? 

[Ridicuss]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

http://www.amazon.com/OCZ-Fully-Modular-Performance-compatible-Phenom-OCZ-ZX1000W/dp/B004P1IWZU

Mine is OCZ ZX 1000, No ups.

[Littleshop]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

What I'm finding is that the polyfuse F3 (near the micro-usb connector) gets really really hot - finger burning.  Is yours like that? 

What brand of PS and what brand of UPS?

[dracore]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

What I'm finding is that the polyfuse F3 (near the micro-usb connector) gets really really hot - finger burning.  Is yours like that? 

What brand of PS and what brand of UPS?

rosewill rg-530, cyberpower ups

[xstr8guy]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

What I'm finding is that the polyfuse F3 (near the micro-usb connector) gets really really hot - finger burning.  Is yours like that? 

Nothing on my pi is remotely warm to the touch.  It is getting some cooling from the fans directed at my H boards.  I'm using a Corsair AX 860 PSU and APS XS1500 UPS.

[-Redacted-]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

What I'm finding is that the polyfuse F3 (near the micro-usb connector) gets really really hot - finger burning.  Is yours like that? 

What brand of PS and what brand of UPS?

Coarsair HX1050 80 Plus Gold.  No UPS - no outages here in the last 2 years.

[E]

Just a quick note that the SD card (Kingston SD4) that shipped w/ my starter kit kicked the bucket yesterday after about 22 days of operation. I reflashed onto another card rather than trying to debug a 4GB sd card; I guess I'll be looking into the NFS root image approach shortly.

[Biomech]

Just a quick note that the SD card (Kingston SD4) that shipped w/ my starter kit kicked the bucket yesterday after about 22 days of operation. I reflashed onto another card rather than trying to debug a 4GB sd card; I guess I'll be looking into the NFS root image approach shortly.

I really doubt that had anything to do with your mining machine. It has been my experience that Kingston's stuff is about 80/20 on reliability. 8 out of ten are bulletproof, and two fail withing a week or two. Never tried to warranty them, as they are cheap, but I've had far better luck with Sandisk and PNY.

The downside of that is that Kingston is usualy first to market with bigger cards

[Littleshop]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

What I'm finding is that the polyfuse F3 (near the micro-usb connector) gets really really hot - finger burning.  Is yours like that? 

What brand of PS and what brand of UPS?

rosewill rg-530, cyberpower ups

I had VERY bad luck with cyberpower.  I had six, three died turning off the servers they were supposed to protect.
 

[xstr8guy]

I'm curious to hear more details from people who have fried pi's.  Are you using older or inexpensive PSUs that are plugged directly into the wall or a high quality PSU plugged into an UPS?

Brand new (relatively) high quality 80%-efficiency with UPS.  I'm confident that my PSU is generating stable 12V for the mboard.  I measured the 5v power coming out of the m-board pins and going into the RPi.  It's weird... first it's at 5.39V but it keeps increasing every couple seconds.  In any case, 5.39V is beyond the maximum (5.25V)

What I'm finding is that the polyfuse F3 (near the micro-usb connector) gets really really hot - finger burning.  Is yours like that? 

What brand of PS and what brand of UPS?

rosewill rg-530, cyberpower ups

I had VERY bad luck with cyberpower.  I had six, three died turning off the servers they were supposed to protect.
 

Not to pile on here... but aren't Rosewill PSUs pretty much 'bottom o' the barrel' too?  They're Newegg's private budget label.

[-Redacted-]

I suspect that nearly every brand of PSU gets made in the same 2 or 3 Chinese factories as every other brand, regardless of label...

[xstr8guy]

I suspect that nearly every brand of PSU gets made in the same 2 or 3 Chinese factories as every other brand, regardless of label...

True, but certain brands/models get higher quality components and workmanship.  And substandard units get budget labels.  Nothing is wasted.  But "you get what you pay for" is oftentimes true.

[af_newbie]

I suspect that nearly every brand of PSU gets made in the same 2 or 3 Chinese factories as every other brand, regardless of label...

True, but certain brands/models get higher quality components and workmanship.  And substandard units get budget labels.  Nothing is wasted.  But "you get what you pay for" is oftentimes true.

Why would someone go cheap on the PSU is beyond me.  This is the most critical part of any system.  A heart that pumps all the blood.
Get gold or platinum Corsair or Sea Sonic and forget you have a PSU.

[xstr8guy]

I suspect that nearly every brand of PSU gets made in the same 2 or 3 Chinese factories as every other brand, regardless of label...

True, but certain brands/models get higher quality components and workmanship.  And substandard units get budget labels.  Nothing is wasted.  But "you get what you pay for" is oftentimes true.

Why would someone go cheap on the PSU is beyond me.  This is the most critical part of any system.  A heart that pumps all the blood.
Get gold or platinum Corsair or Sea Sonic and forget you have a PSU.

An accident waiting to happen.

Those same people are driving around at dusk with their lights off so they don't have to replace their headlights so often... just to save a buck.  And not realizing they are invisible to other drivers.  

[xstr8guy]

Lol, being a PSU snob has come 'round and bit me in the ass!

Two pi's and 2 SD cards now appear to be faulty and or corrupted.  The pi's boot up but then they go into a never ending cycle of debugging gibberish.

Where do I start?!  I know, go back and read... doing that now.  But if anyone can point me to a shortcut, that would be cool. 

[Beastlymac]

Lol, being a PSU snob has come 'round and bit me in the ass!

Two pi's and 2 SD cards now appear to be faulty and or corrupted.  The pi's boot up but then they go into a never ending cycle of debugging gibberish.

Where do I start?!  I know, go back and read... doing that now.  But if anyone can point me to a shortcut, that would be cool. 

Start with re flashing the sd card. Simplest things first.

[xstr8guy]

Lol, being a PSU snob has come 'round and bit me in the ass!

Two pi's and 2 SD cards now appear to be faulty and or corrupted.  The pi's boot up but then they go into a never ending cycle of debugging gibberish.

Where do I start?!  I know, go back and read... doing that now.  But if anyone can point me to a shortcut, that would be cool. 

Start with re flashing the sd card. Simplest things first.

I downloaded the img file.  So I just copy that to a new SD card then?  Do I need to install chainminer too?

[jlsminingcorp]

Lol, being a PSU snob has come 'round and bit me in the ass!

Two pi's and 2 SD cards now appear to be faulty and or corrupted.  The pi's boot up but then they go into a never ending cycle of debugging gibberish.

Where do I start?!  I know, go back and read... doing that now.  But if anyone can point me to a shortcut, that would be cool. 

Don't worry, this may not be related to power at all, the card/os may just have got corrupted, it happens. You were being a bit of a snob though ;-).

[frankenmint]

Lol, being a PSU snob has come 'round and bit me in the ass!

Two pi's and 2 SD cards now appear to be faulty and or corrupted.  The pi's boot up but then they go into a never ending cycle of debugging gibberish.

Where do I start?!  I know, go back and read... doing that now.  But if anyone can point me to a shortcut, that would be cool. 

Don't worry, this may not be related to power at all, the card/os may just have got corrupted, it happens. You were being a bit of a snob though ;-).

ok Im freaking out a little bit....are there problems with the raspberry Pis on the current M2 boards that are expected for october delivery?  Does using a ribbon cable seem to address these issues (someone said that the interface used to connect the PI to the M-Board is not the best way to power the pi is there is no overvoltage regulation?  Its sounding like the input from the mboard eventually gets high like around 5.4V when it should be staying around 5v even?  I'll email their support to be sure...but I was wondering if you guys could put my fears to ease beforehand?  Does having a different amount of H-boards connected make a difference to longevity?  I'm also planning to install into a case made by spotswood will the fans used hopefully mitigate the problem with the pi?  Should I consider buying a 2nd pi and sd card to make a drop in backup?  Have you guys done the same if the answer to that was yes?  I've already dropped a substantial amt of coin on a miner from them but in retrospect I wish i just went along with cex.io now that i see its on demand.