DEC and Emulex boards (was: DEC boards at recycler)

Glen Slick glen.slick at
Mon Jul 18 17:51:20 CDT 2016

On Mon, Jul 18, 2016 at 3:34 PM, Jules Richardson
<jules.richardson99 at> wrote:
> I hauled the DEC + friends boards home earlier which I mentioned finding on
> the list last week.
> The "unknown" board I'd noted down as M7961 is actually M7951, which Google
> suggests is a DUV11 interface board (whatever one of those may be ;-)
> The board with the 128 mmc3764 ICs on it has what I think is a National
> Semiconductor logo on it. Google's no help in IDing the 3764, but I'm
> guessing it's a 64kx1 DRAM or related.
> Next up we have the Emulex boards - all "FH" ("full height", 4 bus
> connectors) or "HH" ("half height", 2 bus connectors):
> TU0310401, FH, 2x50-pin headers on outer edge.
> SU0210401, FH, 1x60-pin and 2x26-pin headers on outer edge.
> CU0210402, FH, 2x50 pin and 1x16-pin headers on outer edge.

> QD3310401, HH, 1x60-pin on outer edge and 2x26-pin headers just inboard.
QD33 = QBus MSCP compatible SMD-E disk controller

> QD2110402, HH, 2x20-pin headers on outer edge, then a 34-pin and 10-pin
> header just inboard.
QD21 = QBus MSCP compatible ESDI disk controller

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