Although the Power Macintosh 5260/100, Power Macintosh 5400 and 6400, Macintosh Performa 6400 series, and Macintosh Performa 6360/160 computers accept an optional High-Performance Module (256K L2 cache card), the modules are not interchangeable. The Power Macintosh 5260/100 accepts a 160-pin L2 cache SIMM card whereas the Power Macintosh 5400 and 6400; Macintosh Performa 6400 series; and Macintosh Performa 6360/160 computers accept a 160-pin L2 cache DIMM card.
For the Power Macintosh 5260/100, you need to use the High-Performance Module for Power Macintosh 5260, part number M4849LL/A.
The Power Macintosh 5400 and 6400; Macintosh Performa 6400 series; and Macintosh Performa 6360/160 computers require the High-Performance Module for Power Macintosh 5400 and Performa 6400, part number M4505LL/A.
Part numbers mentioned in this article are accurate as of this writing. Before ordering, verify that they are still correct as they are subject to change.
Article Change History:
15 Nov 1996 - Added 6360 info.
02 Aug 1996 - Added 6400 info.
20 Jun 1996 - Corrected part number