Artifact Details

Title

Y-MP circuit board

Catalog Number

X1580.99A

Type

Physical object

Date

1988

Manufacturer

Cray Research, Inc. (CRI)

Place Manufactured

U.S.

Identifying Numbers

Serial number 486029

Dimensions

overall: 3/8 in x 8 3/8 in x 9 1/2 in

Description

Donation from Bruce Griffing at LLNL via George Michael via Eugene Miya. These two circuit boards were part of the I/O subsystem of a depopulated Cray Y-MP at Livermore Labs. The PCBs employ similar technology to that deployed in the Cray-1, that is two separate circuit boards using through-hole components mounted on a solid copper substrate through which heat is conducted away from the circuitry. The date codes of the ICs here indicate 1988. The boards are composed of an array of memory ICs surrounded by 10K MECL technology ICs. This item comprises two pieces.

Category

Component: circuit board / module

Credit

Gift of Lawrence Livermore National Laboratory

Lot Number

X1580.99A-B