620 (7025-F80, 6F0 & 6F1) (1~3 2-core RS64-IV CPUs) IBM eServer pSeries 630 (7028-6C4, 7028-6E4) (1 1-core POWER4 CPU or 1~2 2-core POWER4 CPUs) IBM eServer pSeries 640 (7026-B80) 1-4 POWER3-II CPUs IBM eServer pSeries 650 (7038-6M2) 2-8 POWER4 CPUs IBM eServer pSeries 655 (7039-651) 4-8 POWER4 CPUs IBM eServer pSeries 660 (7026-H80, 6H0, 6H1, M80 & 6M1) IBM eServer pSeries 670 (7040-671) 4-16 POWER4 CPUs IBM eServer pSeries 680 (7017 range) IBM eServer pSeries 690 (7040-681) 8-32 POWER4 CPUs The IBM p690 was, at the time of its release in late 2001, the flagship of IBM's high-end Unix servers during the POWER4 era of processors. It was built to run IBM AIX Unix, although it is possible to run a version of Linux minus some POWER4-specific features. It could support up to 32 (1.5, 1.7 or 1.9 GHz) POWER4+ processors and 1 TB of RAM, which weighs well over 1000 kg. It was used in a supercomputer at Forschungszentrum Jülich in 2004, and was discontinued in late 2005. eServer p5 Released in 2004. IBM eServer p5 510 Express (9111-510) (1~2-core 1.5GHz POWER5 CPU) IBM eServer p5 510 (9111-510) (1~2-core 1.65GHz POWER5 CPU) IBM eServer p5 520 Express (9111-520) (1~2-core 1.5GHz POWER5 CPU) IBM eServer p5 520 (9111-520) (2-core 1.65GHz POWER5 CPU) IBM eServer p5 550 Express (9113-550) (1~2 1~2-core 1.5GHz POWER5 CPUs) IBM eServer p5 550 (9113-550) (1~2 2-core 1.65GHz POWER5 CPUs) IBM eServer p5 570 Express (9117-570) (1~8 2-core 1.5GHz POWER5 CPUs) IBM eServer p5 570 (9117-570) (1~8 2-core 1.65GHz or 1.9GHz POWER5 CPUs) IBM eServer p5 590 (9119-590) (1~4 8-core 1.65GHz POWER5 MCMs) IBM eServer p5 595 (9119-595) (2, 4, 6 or 8 8-core 1.65GHz or 1.9GHz POWER5 MCMs) System p5 IBM System p5 185 (7037-A50) (1~2-core PowerPC 970 CPU) IBM System p5 505 (9115-505) (1~2-core POWER5 or POWER5+ CPU) IBM System p5 505Q (9115-505) (4-core POWER5+ CPU) IBM System p5 510 (9110-51A) (1~2 1~2-core POWER5 or POWER5+ CPUs) IBM System p5 510Q (9110-51A) (1~2 4-core POWER5+ CPUs) IBM System p5 520 (9131-52A) (1~2-core POWER5+ CPU) IBM System p5 520Q (9131-52A) (4-core POWER5+ CPU) IBM System p5 550 (9133-55A) (1~2 2-core POWER5+ CPUs) IBM System p5 550Q (9133-55A) (1~2 4-core POWER5+ CPUs) IBM System p5 560Q (9116-561) (1, 2 or 4 4-core POWER5+ CPUs) IBM System p5 570 (9117-570) (1~8 2-core POWER5+ CPUs) IBM System p5 575 (9118-575) (8 1~2-core POWER5+ CPUs) IBM System p5 590 (9119-590)