Unique CRAY "PCPU" Chip for Sale on EBAY

[johnorun]

I am going to sell this unique CRAY "PCPU"chip on Ebay.
It appears to be a production/test sample and it may be the rarest chip I have in my collection.
"Known discrepancy from Manufacturer" and "PCPU 023" is handwritten on the top. "0119" may be the Date code?

I hope a fellow member here becomes the new owner.

[johnorun]

I just listed it on EBAY auction number 196404397908.

[DM8800er]

are you sure about that number, John?

I got a 404
and do not see it under Sold or Completed listings, either

[johnorun]

I'm sorry, but I made a bad typo.
The correct auction number is: 196450542789
It sold today for $99. I was hoping it would sell for more since I've never seen another CRAY supercomputer processor chip offered anywhere before this one.

[DM8800er]

I managed to acquire two Cray supercomputer chips recently.

One says CRI (Cray Research Institute) and PVT TMTC, and I am certain it is from a T90.

The other says Weaver SC, Cray Inc, IBM, and ESD, and has a date code of 2004.
I am not yet sure what Cray computer it was used in.

(I got them both from an estate sale that provided no information)

[Marcin]

I have missed info about that HP acquired Cray in 2019 for 1.3 billion USD.

[DM8800er]

here is a photo of the T90 board
the left side has surface-mounted silicon dies in-between the CPU sockets
the right side (green) is a power module
it is very heavy, weighs 8 lbs (vs. 2 lbs for the board)

[johnorun]

Those are nice Cray items and I'm sure there aren't too many of these found in private collections!

[DM8800er]

I lucked-out... it must have been an engineer's estate sale.

Not only did I get two T90 boards, and that Cray Weaver SC module (memory?), but also a box full of other vintage computing, not only Cray.

It included an ETA-10 processor block from an ETA Systems computer (they were a spin-off from Control Data), two Cray SV2 MCMs [aka X1, one complete, one a 'dummy'], a Cray-3 test module [yellow and black wiring, not blue and white] -- and two posters showing T90 parts, and another showing SV2 parts.

And then some other small parts and bits that I am still researching... two boards full of Intebrid chips that I believe is also Control Data, and two power connector jaws (with pogo pins contacts) for the T90.

As a historian collector this was a gift of manna!


some day, when I have the time, I will post photos here of the rest of my haul
but don't have Photoshop, so making them small enough for the cpu-world constraints is a challenge