Mach 2 GT And Sudden Death Of My CPU and Motherboard

I

Interloper

New member
Here's what happened

Yesterday i decided to clean up my PC so i started to disassemble all the stuff. I'm taking cpu out of the mobo and i see this... no comment.

IMG_0167.JPG


Pins in the middle of Cpu were still in motherboard. First thought "Thank God that it was not a Fx57..." Pins were covered with some kind of white powder? I don't know exactly It looked like a stone formed from water. i remember that it happened before but not at such a scale (And It didn't cause pins damage). The point is that everything was sealed properly for 100% and it just couldn't be done better. So what could cause such damage?

The second thing... motherboard, well two resistors just disappeared. One placed directly below seal string (Propably just fell off during disassembling but how's that possible i don't know) The second one on back of the motherboard directly under cpu. Around the resistors on the back you could notice same symptoms - white deposit...

IMG_0173.JPG


In this photo motherboard is cleaned from this white stuff and prepared for journey to shop...

The important thing is also that:

1# There was no water in the sealed area

2# I used my pc for 2 months (24/H) since last Prommie mounting everything was 100% OK until i took Cpu out.

My questions are:

What caused this damage? How could I prevent this from happening in future? And finally did anyone one of you (Propably happy owners) had such problem or maybe a similiar one.
 
Hi Interloper welcome to the forums first of all!

That is very disturbing - how long did you leave the head connected prior to dis-assembly? Reason I ask is if the flex tube was still firm and in-flexible then this could have caused the pins to break from the cpu when you tried to remove it. Its quite easily done. It could also be corrosion of some sort but that would suggest some form of condensation?
 
Definitaly sounds like corrosion. I am seeing a lack of dielelectic grease, which is not a good sign. It seems that there was condensation forming, enough to cause areas to corrode. :(

Dielectric grease protects this from happening...
 
There's deffo some sort of condensation happened at some stage - Scorchio was able to rma his unit but that was just one pin - on the other hand you might want to give it a try?

There could also be an issue with the board that caused some sort of short that led to the destruction of the CPU - Intel CPU's had the same problem when a lot of volts were being used.

Mav
 
HOLLY SH++:eek:

Thats unreal! Imagine if it were a 57FX:eek: :eek: I dosn't even bear thinking about.

What would the RMA situation be for the cpu? I take it there is no chance.
 
Hi Phil

I've got Prommie for about 6 - 7 months. Before that two months long break in disassembling i was doing that hmmm once for three weeks and another difference was that i was using prommie not 24/7 but maybe 6 hours a day.

The tube it's quite flexible. it couldnt be tube fault. When i took cpu out some of the pins were still in Socket after that i went to bathroom to wash cpu from this powder condensation deposit or whatever. I used my tooth-brush to remove it and during this operation few more pins fell off especially from the middle. I could agree with you that it could be some kind of corrosion or condensation but what then? Everything was sealed properly. Maybe next time i should use some tricks from Vapo like covering resistors in thermal paste or use some armaflex isolation mats. Or maybe the point is that this kind of cooling isnt designed for 24/7 work and the motherboard components couldnt survive 2 months in this environment with subzero temps.
 
If anyone wanna know: 2 months 24/7 with 3000Mhz Speed at 1.55V voltage it was a trully a beautifull Venice 3000+. RMA for the cpu? i don't think that this could be a good idea in my opinion there are no chances for new one so I'm not even trying.
 
You say that maybe this kind of cooling isn't designed for 24/7 operation but I am sure others have there comps on 24/7 running folding in there spare time without any probs.

Surly you must have had a slight gap in your seal causing air to get into the head & cpu which in turn caused pin rot.

What cpu was it?
 
name='Interloper' said:
If anyone wanna know: 2 months 24/7 with 3000Mhz Speed at 1.55V voltage it was a trully a beautifull Venice 3000+. RMA for the cpu? i don't think that this could be a good idea in my opinion there are no chances for new one so I'm not even trying.
Click to expand...

Get an opty, good value for money, clock nicely on phase, cheap to. Next time fold if you are worried.
 
I highly recommend the use of dielectric grease, I have read of so many troubles when people don't use it! Just get a big tube of Down Corning DC4 and you're sorted :D

I think people are scared it doesn't come off or something, but it just wipes off!

Time to get the scales out:

Bit of grease on one side --- Dead computer on other

Which one would you rather have :rolleyes:
 
name='Interloper' said:
If anyone wanna know: 2 months 24/7 with 3000Mhz Speed at 1.55V voltage it was a trully a beautifull Venice 3000+. RMA for the cpu? i don't think that this could be a good idea in my opinion there are no chances for new one so I'm not even trying.
Click to expand...

There is no harm in trying - what do you have to lose?
 
Whats putting me off using the grease is that surely its not possible to get all of it off the board. Say for example you have a fault develope on the board unrelated to the promi, how would it be possible to return it for an RMA.

Is there a way to get the grease out from inside the cpu socket?
 
Geomon said:
Whats putting me off using the grease is that surely its not possible to get all of it off the board. Say for example you have a fault develope on the board unrelated to the promi, how would it be possible to return it for an RMA.

Is there a way to get the grease out from inside the cpu socket?
Click to expand...

Sorry pressed edit instead of quote on your post :o (Damn mod privelages)

I dont use it in the socket - I just make sure that the unit is well sealed. I do apply a small layer on the back of the board covering the components that will be covered by the backplate, I also use electrical tape to fully insulate the aluminium backplate before installation - just to be safe.

Mav
 
Don't tell anyone, but I have sold components that have been used under the prommy without being able to tell - including Mobos and CPUs :cool:

You just need to use a cleaner, like that arctic cleaning solution...

Better safe than sorry :D
 
I have heard that some guys remove the socket which enables them to clean all the grease off. Is it possible to remove a cpu socket?
 
Dont hold back on conformal coating and dielec.... I felt much happier powering up my Mach after I`d applied it. Seeing droplets of water on the CPU on disassembly when you havent used any dielec is...worrying. Still a wee bit of condensation even now, but i`m working on that ;)
 
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