The IBM P5 520 was announced in 2005 and withdrawn from IBM marketing in 2008 which makes it an excellent value today.
This machine is still fast enough to run your database or to work as a branch application server.
The p5-520 and p5-520Q were big sellers for IBM and remain so in the refurbished market, so replacement and upgrade parts and features are readily available and affordable.

While most of our sales history shows the 4U rack mount as the more popular, the deskside server is also in stock and ready to be configured and shipped.

Vertical Enterprise also offers a full line of replacement drives, memory, SCSI controllers, compatible tape drives and more.

P5 520 config options:

Power5plus Processor Card Options
- 1 x 1-core 1.65 GHz Proc Card FC 8321
- 1 x 2-core 1.65 GHz Proc Card FC 8323
- 1 x 2-core 1.9 GHz Proc Card FC 8330
- 1 x 1-core 2.1 GHz Proc Card FC 8315
- 1 x 2-core 2.1 GHz Proc Card FC 8316
- 1 x 4-core 1.5 GHz Proc Card FC 8333 (p5-520Q)
- 1 x 4-core 1.65 GHz Proc Card FC 8314 (p5-520Q)
Cache
- 1.9MB Level 2
- 36 MB Level 3
Memory
- Required 1 GB to 32 GB Maximum
PCI-X Slots (hot-swap)
- 3 133 MHz 64-bit
- 2 66 MHz 32-bit
- 1 DDR 266 MHz 64-bit
Hard Drive Bays
- 4 Standard
- 4 Optional (for a total of 8)
Media Bays
- 2 slimline
- 1 half-height
I/O Drawers
- Maximum of 4 adds 28 PCI-X slots and 48 disk slots
Ports
- Dual channel U320 SCSI controller
- Dual 10/100/1000 ethernet
- 2 USB
- 2 HMC

Hard Drive Features:
- Feature Code 1968 73.4GB 10k SCSI
- Feature Code 1969 146.8GB 10k SCSI
- Feature Code 1970 36.4GB 15k SCSI
- Feature Code 1971 73.4GB 15k SCSI
- Feature Code 1972 146.8GB 15k SCSI
- Feature Code 1973 300GB 10k SCSI
(Check with Vertical Enterprise for further compatibility.)

Memory Features
- Feature Code 1930 1 MB 2x512MB
- Feature Code 1931 2 MB 2x1024MB
- Feature Code 1932 4 MB x2048MB
- Feature Code 1934 8 MB 2x4096MB
(Check with Vertical Enterprise for further compatibility.)

Additional Storage Features:
Check with Vertical Enterprise for multiple optical or tape features for this machine