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#bendlake : Skylake delid PCBs bending?


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In my case I really do think CPU bent a little bit more session after session by heating it up too much. I didn't think 60°C XTU could do any damage since it's below operating temperature I get at 4.8G aircooling for that bench. At least I could finish guide but "thermal shock" was probably too much :( Hopefully I have better air CPUs that "might" scale on cold...

Edited by pepinorang
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My chip bent during delid only one corner, it was resulting in mem issues, reseated it and then it never happened again. I have since used chip in a different board and unmounted several times No issue occured since. I think I had to get all the remant of the old silicon off or something. But like someone already said the lid should straighten it out when you mount it. I would suggest trying again before calling it dead too.

 

I think I only bent one corner though where the silicon was really hard to get off

 

 

I used .009" thick http://www.stanleytools.com/en-US/products/hand-tools/knives-blades/replacement-blades/100-pk-112-in-single-edge-razor-blades/11-515

 

Those double edged razors you all suggest.. how could you even get a grip on them without cutting off your fingers?

 

honestly if I get anymore cpus with lids I will just send them out to silicon lottery. 50$ and I won't have to worry about killing 400Euro + chips

 

 

 

I hope they do a SKY LAKE CANYON

a sky lake in a canyon.

Edited by Random
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you can use a heatgun and bend it back no problem if it bends

 

Also vivi has the right idea but I use scraper razor blades they have a blunt side.

1365267089_razor-blades-470b-0908.jpg

 

Seems better if you dont push hard just get the corners loose first then little by little on the sides. :D my 2 cents

 

I have 25+ under my belt without death.

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you can use a heatgun and bend it back no problem if it bends

 

Also vivi has the right idea but I use scraper razor blades they have a blunt side.

1365267089_razor-blades-470b-0908.jpg

 

Seems better if you dont push hard just get the corners loose first then little by little on the sides. :D my 2 cents

 

I have 25+ under my belt without death.

Thanks for the tip Splave dad! I bent back CPU with heatgun and it's ALIVE again! :D I guess some pins were not touching CPU anymore causing 00 post code :)

Edited by pepinorang
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you can use a heatgun and bend it back no problem if it bends

 

Also vivi has the right idea but I use scraper razor blades they have a blunt side.

1365267089_razor-blades-470b-0908.jpg

 

Seems better if you dont push hard just get the corners loose first then little by little on the sides. :D my 2 cents

 

I have 25+ under my belt without death.

 

i prefer people cutting themselves ;)

 

haha good tip yes.

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  • 2 weeks later...
Guest george.kokovinis

Not such a big deal finally, if someone is a bit more careful.

 

Hitting 85 with a simple Corsair H100i in WPrime1024m with 1.4V at 4.7ghz,

I was more than concerned.

Used Coolaboratory liquid ultra and the results were at least amazing.

Now at 4.8ghz with 1.43V, I merely touch 68-69.

 

The spread between cores was 15 degrees. Now it is down to 6.

 

It is a delicate little thing and it must be treated with some extra care.

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