sun 88780 on ebay

Kevin Bowling kevin.bowling at
Mon Feb 11 19:23:30 CST 2019

I am in the market for this option as well, after Al is taken care of if he
needs it.

On Mon, Feb 11, 2019 at 1:27 PM Eric Smith via cctalk <cctalk at>

> On Mon, Feb 11, 2019 at 11:18 AM Al Kossow <aek at> wrote:
> > Does it have the 800 bpi option board?
> >
> I haven't yet unboxed it. I took photos of the outside of the destroyed box
> to send to the shipper. The front bottom left corner of the 88780 is
> visible through a hole in the box, and is visibly mangled.
> I'll take more photos as I unbox it tonight.
> Based on the service manual, it appears that option 800 requires:
> * buffer PCA 07980-6xx14 (512K) or 07980-6xx34 (1M)
> * read/write/formatter PCA 07980-6xx31
> Were there any other hardware changes for option 800? If not, one wonders
> why HP documentation is adamant that it cannot be field-upgraded to option
> 800.

More information about the cctalk mailing list