HP 9836U processor mystery...

[David Collins]

The hpmuseum.net is indeed having technical issues at the moment. The after effects of an Opsys upgrade to the web server it seems. 

Service will be restored as soon as possible!

David Collins


> On 7 Nov 2017, at 3:52 pm, Josh Dersch via cctalk <cctalk at classiccmp.org> wrote:
> 
> Hi all --
> 
> I mentioned a few weeks back that I picked up an HP 9836CU workstation.  The "U" variant differs from the normal 9836 in that it contains an upgraded CPU board that allows it to run early versions of HP-UX.  (The "C" indicates that this machine has a color display, which is also cool but not what I want to talk about here today.)
> 
> Information on the Internet varies about what microprocessor the 9836U actually contains -- some sources say it's a 12Mhz 68010, some say it's a 12Mhz 68000.  I found some internal HP marketing text that corroborates the straight-68000 story.  I'd link it here, but hpmuseum.net appears to be having technical issues at the moment.
> 
> My 9836CU has the 12Mhz 68000 (HP internal part number 1820-3288) fitted in a socket on an 09836-66511 board (with the expected 16K SRAM cache and MMU logic) and the processor is identified at power-up as a 68000.
> 
> Just for fun, I swapped the processor with a PGA 68010 and it powers up and runs just fine, and identifies the processor as a 68010.  (Still won't boot the copy of HP-UX 5.0 on the hpmuseum site, though...)
> 
> I'm curious if other people out there with 9836U's can confirm whether their machine has a 68000 or a 68010 in it, I'd just like to settle the internet discrepancy once and for all :).
> 
> - Josh
>