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iguana



Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
PostPosted: Fri Jul 15, 2011 7:04 am    Post subject: DEC board Reply with quote
Hi guys,
What is this?
is there a CPU ? Smile
Sorry for bad photo

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Elar



Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
PostPosted: Fri Jul 15, 2011 7:33 am    Post subject: Reply with quote
No single chip CPU here. It's a V-11 VAX chipset.
More here: http://simh.trailing-edge.com/semi/v11.html

naked1300 has a detailed photo of this DEC KA820-AA CPU
board:

http://www.cpu-galaxy.at/Boards/Boards_CPU/Boards_CPU.htm
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iguana



Joined: 24 Apr 2007
Posts: 2456
Location: Ottawa, Canada
PostPosted: Fri Oct 07, 2011 12:00 pm    Post subject: Reply with quote
finally have got it Smile
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johnorun



Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
PostPosted: Fri Oct 07, 2011 12:44 pm    Post subject: Reply with quote
I love that multi-chip module! Smile
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silice



Joined: 03 Mar 2009
Posts: 2178
Location: France
PostPosted: Sun Oct 09, 2011 10:39 am    Post subject: Reply with quote
really a nice board I like it a lot
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UMMR



Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
PostPosted: Tue Oct 11, 2011 9:38 am    Post subject: Reply with quote
Hello,
Your card is a DEC KA-820 CPU (most likely Rev -AA), aka T1001. IMHO among the nicest vintage DEC cards. It has been used in the DEC VAX 8250/8350 midrange systems. Its processor is the not-so-common DEC V11 "Scorpio" clocked at 5 MHz. The beautiful multichip module (DEC DC327) contains the control ROM and some RAM.
Paolo
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