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Delidded failure on a 6700k, at least it appears that way, wont post

post #1 of 45
Thread Starter 

So, given my past success on delidding my 4700k, i decided to give it a shot and delid the 6700k, to save time so as to not ship it to someone to do it for me..

I think my box cutter knife must have turned at a weird angle as i was rocking on the corners.. because on at least two corners you now see gold exposed.. i thought maybe i'd be ok, that it didnt hit a trace, but i think it must have.

I took a chance, put it in, placed the IHS ontop, pressed power, all i get is a dram light.. it doesnt post.. i put another 6700k i had on hand in, no issues.. posts fine.

So at this point, if it is the gold nicks, is there anything that can be done or is it truly dead. I tried, albeit stupidly i guess, to put some black electrical tape, tiny amount, on the nicks without blocking any terminals and that did not help.

I should mention the cpu light doesnt light up red, just the dram, with the good chip, dram lights up, then cpu led, then the video card, in sequence.. with the delid one just dram comes on, no beep.

Thoughts or just RIP i suppose.
Edited by markm75 - 9/26/16 at 11:05am
    
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post #2 of 45
2nd delid kill I see today... Can't believe how you can risk so much for lower temp.
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post #3 of 45
Your pcb scratched off dosen't seem to be a plorbem,
but if you damaged the core, lets say chipped a slight piece on the edge of the core then your gone forever
post #4 of 45
Thread Starter 
Quote:
Originally Posted by Iwamotto Tetsuz View Post

Your pcb scratched off dosen't seem to be a plorbem,
but if you damaged the core, lets say chipped a slight piece on the edge of the core then your gone forever

Seems to be just the corners of the pcb, i didnt go anywhere near the die/cores.. i assume you mean the cores being near the die rectangle in the middle?

Could some of the CLU caused an issue, maybe too far over the edge, though if you look you can see glue around the area so i think that wasnt it.. i saw posts of people suggesting to put nail polish on the scratches.. what type and what does that achieve that my temp attempt at black electrical tape wouldnt?

Or maybe somehow the IHS is botched and not the chip.. i think there is a way to disable it sensing if the ihs is on, but unsure how.. maybe i should try a quick boot on without the ihs to see.

edit: forgot to mention that i really didnt clean all the glue off either the chip (in the pic obviously) or the ihs spreader.. not sure if that matters. I guess i should have to make better contact with the die to lower the temperatures. I forget how to get the glue off safely from both, i guess a credit card may do well.
Edited by markm75 - 9/26/16 at 11:29am
    
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post #5 of 45
Some of those scratches on the substrate are well within the area that contains traces and could easily have killed the part. You could also have warped the substrate enough to do damage to it or the connection to the die, if not the die itself.
Quote:
Originally Posted by markm75 View Post

Or maybe somehow the IHS is botched and not the chip.. i think there is a way to disable it sensing if the ihs is on, but unsure how.. maybe i should try a quick boot on without the ihs to see.

The processor has no way of knowing if an IHS is in place or not and unless you bent the IHS so badly that it's not contacting the core (in which case the part would be hitting the thermal trip whenever you tried to boot it) there is nothing you could do to the IHS that would cause this problem.
Quote:
Originally Posted by Just a nickname View Post

2nd delid kill I see today... Can't believe how you can risk so much for lower temp.

Risk is quite low if done correctly.
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post #6 of 45
OMG... dude......you need to do more research in the type of blade to use before you delid... double edge razor blade for shaving... They're like $4-5 at CVS... Van Der Hagen I think made mine... As long as you keep it flat against the PCB there is almost no risk of cutting any PCB or traces...Sad to see it go but if you would have used the correct blade you could have been just fine...ouch mad.gif
post #7 of 45
Best option is to by the actual Delid box tool they sell cheap. Could have saved a few hundred dollars on killing a cpu. Sorry to see this.
post #8 of 45
Thread Starter 
Quote:
Originally Posted by Cakewalk_S View Post

OMG... dude......you need to do more research in the type of blade to use before you delid... double edge razor blade for shaving... They're like $4-5 at CVS... Van Der Hagen I think made mine... As long as you keep it flat against the PCB there is almost no risk of cutting any PCB or traces...Sad to see it go but if you would have used the correct blade you could have been just fine...ouch mad.gif

Yes I realize this now, the one i used this time was quite different from the delid i did on my 4700k, oh well, lesson learned, hard though.
    
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post #9 of 45
for the people saying the damaged is nowhere near the core..

it doesn't matter theres so many traces on the PCB.. that he has definitely damaged..

I actually con caved a i5 6600k so bad and managed to get it 100% straight again but the smallest scratch showing copper rendered it useless

I then bought the Delid Die mate by the overclocker der8auer

it may be expensive but my thought is its saving a CPU worth 300 + more and im always going to use it

worst thing about the i5 was it was stable at 4.9 easy before the delid
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post #10 of 45
Make a nice $300 keychain out of it.
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