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Kimura
Joined: 20 Nov 2010
Posts: 11
Location: Wisconsin
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 Posted: Wed Dec 01, 2010 1:09 am Post subject: What CPU is this? |
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I decided to play with a dead cpu and see what I could do. Using hammer and anvil [& fire  ] techniques, I managed to get a few semi-clean die shots. Any guesses? I'll post the S-Spec if nobody can get it right.
 
 
Personally, I would need some hints. Just ask  |
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Wed Dec 01, 2010 1:34 am Post subject: |
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bit hard without a scale 
but my first instinct is a P5 core
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those who understand binary and those who don't. ~Author Unknown
http://www.x86-guide.net/Neon-WA/en/collection.html |
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Kimura
Joined: 20 Nov 2010
Posts: 11
Location: Wisconsin
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| Posted: Wed Dec 01, 2010 2:48 am Post subject: |
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No worries,
 
5 Yen (US Quarter Size) & .45 ACP Cartridge |
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Neon_WA
Joined: 08 Nov 2008
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Location: Margaret River, West Australia
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doccybrown
Joined: 03 Oct 2005
Posts: 1736
Location: Germany
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| Posted: Wed Dec 01, 2010 4:58 am Post subject: |
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AMD K6? If yes this would be great
because I thought taking adequate die-
pictures of any flip-chip is as good as
impossible but your pics already look ok!
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Kimura
Joined: 20 Nov 2010
Posts: 11
Location: Wisconsin
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| Posted: Wed Dec 01, 2010 4:52 pm Post subject: |
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It's from a flip chip with an IHS
BTW The functional or visual part of the die is face down on the PCB |
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Tetrium
Joined: 25 Apr 2010
Posts: 466
Location: The Netherlands
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| Posted: Wed Dec 01, 2010 5:59 pm Post subject: |
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| Closest I could find is a P4 EE |
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Kimura
Joined: 20 Nov 2010
Posts: 11
Location: Wisconsin
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| Posted: Wed Dec 01, 2010 10:18 pm Post subject: |
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| Tetrium wrote: | | Closest I could find is a P4 EE |
That is really close but this package didn't have an EE.
Here is a professional image of the same die.
http://sandpile.org/impl/pics/intel/p4/die_90nm_1m.jpg
If you're curious, want to do it, use a dead / damaged CPU. Don't waste a perfectly good CPU please!
I used a butane torch and held the chip with a wrench until the IHS was red hot. I used pliers and popped the IHS off. Note this was a CPU with the IHS soldiered on. I torched the underside and corners (trying to stay off the die itself) until it burned. After it was cooked well done all the way through the die had actually removed itself from the charred PCB. Just a little bit of heat directly to the underside of the die burned away any remaining material, exposing what is in the pictures. I'm sure this method wouldn't work with ceramic for obvious reasons, sorry doccybrown. |
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Kimura
Joined: 20 Nov 2010
Posts: 11
Location: Wisconsin
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| Posted: Thu Dec 02, 2010 3:46 pm Post subject: |
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| You're looking at whats left of an SL7J7. |
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