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isa-d

Joined: 16 Aug 2006 Posts: 2984 Location: Italy
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Posted: Mon Aug 16, 2010 5:01 am Post subject: unknown processor, may be IBM |
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Some time ago I bought this chip/processor but I'm not able to find nothing on it
seem to be used and it's a 2295 pin LGA, no costructor marking or copyright on it
seem to be an IBM for these two part number 44M0205 and 44M0195 but not information on Google
I thinking it's a CPU because it's very unusual a chipset in LGA package (standard it's a BGA package soldered on board)
any suggestions are welcome
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isa-d

Joined: 16 Aug 2006 Posts: 2984 Location: Italy
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Posted: Wed Aug 18, 2010 11:04 am Post subject: |
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I thinking the mistery of this chip is solved
I find an auction on Taobao with this photo
the left chip is a Power 6 processor with heatspreader
and the right chip is like mine
from Wikipedia
Each core has a 64 KB, four-way set-associative instruction cache and a 64 KB data cache of an eight-way set-associative design with a two-stage pipeline supporting two independent 32-bit reads or one 64-bit write per cycle.[7] Each core has semi-private 4 MiB unified L2 cache, where the cache is assigned a specific core, but the other has a fast access to it. The two cores share a 32 MiB L3 cache which is off die, using an 80 GB/s bus
I thinking the second chip is this cache |
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doccybrown

Joined: 03 Oct 2005 Posts: 1736 Location: Germany
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Posted: Wed Aug 18, 2010 3:20 pm Post subject: |
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I think you are right.
The big MCM-version of Power4 has also external L3 cache-chips
in similar big packages. The "low-end" Power4 is a dual-chip module
(dualcore + L3-cache) as you know.
On Power5 the big cache-chip(s) is/are always on module.
Power6 low-end is off-chip. _________________ Ordem e Progresso |
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henriok

Joined: 30 Dec 2007 Posts: 157 Location: Gothenburg, Sweden
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Posted: Thu Dec 19, 2013 6:09 pm Post subject: |
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It's probably not the cache chip since no POWER6 offering used external cache chips on their own package. The combinations that used L3 cache had it mounted on the same substrate in dual-chip modules (1x POWER6 and 1x cache chip) and tri-chip modules (1x POWER6 and 2x cache chips).
I think it's a POWER6+ which came on organic LGAs. It even says "POWER" on the heat spreader, something I've only seen on other POWER processors (like POWER6, POWER and Blue Gene/Q). I've never seen a POWER6+ in person though. _________________ Always on the look out for POWER, PowerPC and Power Architecture information. For photographs, information and parts to buy. Am doing research at Wikipedia |
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