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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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 Posted: Thu Jul 26, 2012 12:25 am Post subject: Tandem chip??? |
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Hi all,
I have one Tandem chip. Does anyone know what it is?
It does not look like the Tandem cpu. Will it be the supporting chip?
Thank for your infomation in advance. |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Thu Jul 26, 2012 1:12 am Post subject: |
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| CPUShack wrote: | | http://www.cpu-world.com/forum/viewtopic.php?t=18975&highlight=tandem most likely something similar |
Thank you for the link but the pin and the cap is difference so I can't sure it is cpu. |
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Thu Jul 26, 2012 1:20 am Post subject: |
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| Also the heatsink has AMD logo and part number Am46177AKC |
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Thu Jul 26, 2012 1:28 am Post subject: |
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| Elar wrote: | | Also the heatsink has AMD logo and part number Am46177AKC |
I have searched with "AMD AM46177AKC" but seemed no useful information provided in internet. |
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CPUShack
Joined: 16 Jun 2003
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Thu Jul 26, 2012 1:39 am Post subject: |
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Seeing Tandem was using MIPS processors & support processors.. i would try and match pinout to one of them
guessing probably R4400 family by date code
_________________
There are 10 types of people in this world:
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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CPUShack
Joined: 16 Jun 2003
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Neon_WA
Joined: 08 Nov 2008
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Location: Margaret River, West Australia
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Thu Jul 26, 2012 2:13 am Post subject: |
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I also notice that Tandem CPU has two "V" on the left upper corner on front and right upper corner on back. I guess V= VLSI.
This chip have the letter "H" on both side. I don't know what it means. |
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Thu Jul 26, 2012 9:09 am Post subject: |
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Hello,
it's a system bus controller for a Tandem Himalaya Nonstop server (R4400 fault tolerant machine).
Manufactured by AMD - likely a gate array or something similar.
Paolo |
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bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
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| Posted: Thu Jul 26, 2012 7:59 pm Post subject: |
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| UMMR wrote: | Hello,
it's a system bus controller for a Tandem Himalaya Nonstop server (R4400 fault tolerant machine).
Manufactured by AMD - likely a gate array or something similar.
Paolo |
Hello Paolo,
Thanks for your comment. 
Now I know what it is. |
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