That didn't take long...

Patriot

[H]ard|DCer of the Month - March 2011/June 2013/De
Joined
Dec 15, 2010
Messages
2,498
A picture cries a thousand words...
IMG_20130126_014218.jpg


Anyone know how to RMA SM boards?
 

402blownstroker

[H]ard|DCer of the Month - Nov. 2012
Joined
Jan 5, 2006
Messages
3,217
Pretty straight forward. Get the model and serial number off the board. Usually printed on white labels. Email their tech support address stating you want a RMA for the board and list the model, series number, and what when wrong. Turn around from request to RMA number is usually a day.

Sorry to see that happen. What board was it and what happened? I am guessing a little too much magic go-go jiuce?
 
D

Deleted member 12106

Guest
Firstly,
arguecat.png


Secondly, was the failure due to general operation of the equipment, or was it operated outside of normal parameters? :p

Oh, it should also be noted that this guy was running cine benches on this box....this is what happens when you cine bench instead of fold. :)
 

rascal65

Limp Gawd
Joined
Dec 31, 2011
Messages
201
"Secondly, was the failure due to general operation of the equipment, or was it operated outside of normal parameters?"

I would say normal operation as that will eventually kill a board.

You Know Big Brother reads these boards.;)
 

Zink

Gawd
Joined
Feb 9, 2010
Messages
693
Do you know what the surface temperatures on those components were? I wonder if high temperatures led to the failure or if there was some other kind of electrical failure caused by high voltage or current that caused it to burn like that.
 

tear

[H]ard|DCer of the Year 2011
Joined
Jul 25, 2011
Messages
1,568
Must have been the latter as the component released the smoke at the power-on...
 

Patriot

[H]ard|DCer of the Month - March 2011/June 2013/De
Joined
Dec 15, 2010
Messages
2,498
Do you know what the surface temperatures on those components were? I wonder if high temperatures led to the failure or if there was some other kind of electrical failure caused by high voltage or current that caused it to burn like that.

It was cooled adequately ...
chips were watercooled vrms had copper sinks and 4 fans on them...

This was as you can see on the back of the board... fan sitting right above it halfway over board to give airflow to the backside as well...


I was pushing it.
But others have had the same thing happen under much much less stress.
It lasted 9 wu's at ~1400w AC load... 3.48ghz normal folding operation.
Set a few WRs on it last weekend.

http://hwbot.org/benchmark/wprime_-_1024m/
http://hwbot.org/benchmark/cinebench_r11.5/ (I have a higher one in pocket for the first guy that passes me ;) )

It was acting wonky since I rebuilt it... before any tweaking... reboots at stock.
I only got it behaving last weekend and it was still finicky on windows and linux installs... it seemed off.
Then it was folding rock solid for 9 wu's then smoke.

I was running the AC at 68, and keeping the chips on load under 60...
Now I get to test all of the individual components... Joy.
 

colinstu

2[H]4U
Joined
Oct 11, 2007
Messages
3,563
Were you using OCNG bios? Doesn't that void warranties?

Or was that BIOS conjured up in a way that isn't easily detected? :p
 

Spazturtle

[H]ard|Gawd
Joined
Jan 4, 2013
Messages
1,526
If SM send you a new board then use standoffs on the case, so that air can get to and cool the rear of the board.
 

Patriot

[H]ard|DCer of the Month - March 2011/June 2013/De
Joined
Dec 15, 2010
Messages
2,498
If SM send you a new board then use standoffs on the case, so that air can get to and cool the rear of the board.

... if you don't use standoffs you will short the board...

There was a fan blowing on the part that busted...
 

Schro

Supreme [H]ardness
Joined
Mar 15, 2002
Messages
7,893
It must have had cereal for breakfast? Post Toasties, specifically?
 

jmilcher

Supreme [H]ardness
Joined
Feb 3, 2008
Messages
5,670
OP- you were using standoffs correct? Doesnt look like it at all in that pic
 

Patriot

[H]ard|DCer of the Month - March 2011/June 2013/De
Joined
Dec 15, 2010
Messages
2,498
OP- you were using standoffs correct? Doesnt look like it at all in that pic

Just standard standoffs...else I couldnt use the expansion slot.

I might consider getting taller ones like they use for open builds...but that would mess up my spacing with the radiators...

I might however make a few more cutouts on the mobo tray and mount some 120s back there.
 

Spazturtle

[H]ard|Gawd
Joined
Jan 4, 2013
Messages
1,526
Yeah from the looks of it the board was too close to the case, now remember higher temps = higher resistance, so if some components were getting too hot it could cause others to get hotter and die.

Also remove the rubber grommets.
 
Last edited:

jmilcher

Supreme [H]ardness
Joined
Feb 3, 2008
Messages
5,670
Just standard standoffs...else I couldnt use the expansion slot.

I might consider getting taller ones like they use for open builds...but that would mess up my spacing with the radiators...

I might however make a few more cutouts on the mobo tray and mount some 120s back there.

Standards are fine, no reason to raise the board abover the 1-2mm the standoffs do. Maybe introducing airflow back there could help though.
 

Patriot

[H]ard|DCer of the Month - March 2011/June 2013/De
Joined
Dec 15, 2010
Messages
2,498
Yeah from the looks of it the board was too close to the case, now remember higher temps = higher resistance, so if some components were getting too hot it could cause others to get hotter and die.

facepalm.... keep in mind this rig is watercooled with vrm sinks and fans on those sinks
AC set to 65F ....

there was actually a fan that would have provided airflow to the place in question...

More so... while that socket would have had airflow to its driver circuits... the other sockets would not have.
Driver circuits really shouldn't get hot... I agree with Core32 and tears analysis... most likely a passive component died and that damaged the IC... pop...

http://hardforum.com/showthread.php?t=1619088&highlight=harbringer

upper right is the part of the board that had issues... notice the fan... at the time it was adjusted even closer and halway over the board....

Those copper sinks were barely warm to the touch thanks to all the air movement.
IMG_20130118_225951.jpg
 
Last edited:

Tobit

[H]ard|DCer of the Month - March 2010/May 2011
Joined
Dec 12, 2005
Messages
5,145
Patriot, Patriot, Patriot...
 

-alias-

Limp Gawd
Joined
Jul 15, 2012
Messages
374
Patriot.
I am sorry to see that there have been an accident with your SM mobo, but you are not alone you should know.

Something similar happened with my SM motherboard for a little over 2 months ago. Luckily it was only the plastic shield that burned, so the motherboard is still folding on further at 3.0GHz. The strange thing was that before this happened, I had folded flawlessly for some time at 3.5 and 3.6GHz, while the accident happened later on just 3.4GHz. http://hardforum.com/showpost.php?p=1039349302&postcount=162

I had not mounted heatsinks when the accident happened, but I have now. http://hardforum.com/showpost.php?p=1039367180&postcount=246
 

Patriot

[H]ard|DCer of the Month - March 2011/June 2013/De
Joined
Dec 15, 2010
Messages
2,498
Well unfortunately in my case a resistor went out making a short... (I think)
And it will create a 6 inch long fireworks display if I give it a chance :)
 
Top