AB439A HP Intel Itanium 2 1.5-GHz 4MB Processor Module

AB439A is an Intel Itanium 2 1.5-GHz dual processor module with 4 MB of cache, for the HP Integrity rx7620 and the HP Integrity rx8620. HP calls it the rx7620/rx8620 Itanium 2 1.5GHz 4MB 2-pack CPU. Two processors come on each module, and the module replaces the two processors of an older module when a server is upgraded.

The 1.5-GHz Itanium 2 has 4 MB of level 3 cache, 256 KB of level 2 cache and 32 KB of level 1 cache. It provides single-bit cache error correction, 44-bit physical addressing and 64-bit virtual addressing. The spare for AB439A is AB439-69101, a cell processor board (MAD9M, 4MB cache). The Instant Capacity version of the processor is AB441A.

The 1.5- and 1.6-GHz processors consist of two chips and can only be ordered or upgraded in pairs. Each cell board needs at least two active processors, either two chips or one HP mx2 dual processor module, and the processors on a cell board are installed in the sequence 0, 2, 1, 3. Speeds can be mixed within a chassis, but the processors within one cell or hard partition must run at the same speed. The rx7620 and rx8620 share the same cell board.

Itanium 2 processors that ship after June 15th, 2005, AB439A among them, can need a firmware update. The rx7620 and rx8620 require system firmware version 3.30 or later (version 4.0 for OpenVMS), and the revision is checked with the MP sysrev command.