The chassis does have a 1000 watts power supply. In the upper third is a compartment for two disks (5.25" full height devices) and one tape drive or CD-ROM.
Physically 64 MB (documented), virtual 256 MB. There is no memory on the main board. A maximum of four 8 MB and/or 32 MB boards can be plugged in. Single bit error correction, double bit error recognition.
64 kByte 2nd level cache: write-back, direct-mapped, virtually-indexed and virtually-tagged with 16 Byte blocks, 80 ns access time.