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IBM PC Server HMM (S30H-2501)

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The IBM PC Servers Hardware Maintenance Manual, form number S30H-2501-01, Second Edition (March 1996), is IBM's service supplement for its first PC Server range. The scan has 557 pages and a text layer.

It covers the PC Server 300 (Type 8640), 310 (8639), 320 (8640), 500 (8641), 500 System/390 (8641), 520 (8641) and 720 (8642), and the SCSI Multi-Storage Enclosure (Type 3517) and Enterprise Expansion Enclosure (Type 3518). IBM calls it a supplement, to be used with the advanced diagnostic tests and the IBM Personal System/2 Hardware Maintenance Manual (part number 83G8990, form number S52G-9971), which is hosted as IBM Personal System 2 Hardware Maintenance Manual (S52G-9971-02, October 1994).

Contents

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From the manual's own contents list (pp. v–vii):

  • General checkout and diagnostics with QAPlus/PRO (pp. 3–5)
  • PC Server 300, Type 8640 (p. 15): features, diagnostics, additional service information, locations for the 486DX2 system board (p. 25) and the Pentium system board (p. 29), symptom-to-FRU index (p. 32), parts (p. 47)
  • PC Server 310, Type 8639 (p. 53): locations (p. 89), symptom-to-FRU index supplement (p. 95), parts (p. 119)
  • PC Server 320, Type 8640 (p. 127): locations (p. 155), symptom-to-FRU index (p. 164), parts (p. 169)
  • PC Server 500, Type 8641 (p. 177): system board locations (p. 208), symptom-to-FRU index (p. 209), parts (p. 218)
  • PC Server 500 System/390, Type 8641 (p. 221): locations and parts (p. 241)
  • PC Server 520, Type 8641 (p. 243): diagnostics for models EZO, EZV, EZL, EZS and EZE (p. 248) and MZO, MZV, MZS, MZE and MZL (p. 251); locations for each model group (pp. 294, 301); symptom-to-FRU index (p. 308); parts (p. 318)
  • PC Server 720, Type 8642 (p. 325): locations (p. 370), symptom-to-FRU index (p. 376), parts (p. 399)
  • SCSI Multi-Storage Enclosure, Type 3517 (p. 405) and Enterprise Expansion Enclosure, Type 3518 (p. 423)
  • Related service information (p. 453): safety (p. 456), battery notice and disk array configuration (p. 461), drive maintenance (p. 479), PeerMaster Ethernet adapters (p. 490), external SCSI devices (p. 508), hot-swap backplane (p. 512), UPS installation (p. 514), RAID drive replacement (p. 515), OS/2 trap errors (p. 519), flash, diagnostics and CMOS access (p. 522), Adaptec AHA-2940/2940W adapters (p. 525), SCSISelect (p. 547), motor-start jumper (p. 549), ServerGuide and software/hardware mismatch problems (p. 550), undetermined problems (p. 552), problem determination tips (p. 553)

What this manual does not contain

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It is a FRU-level manual: it gives part numbers, locations and symptom-to-FRU indexes, not component values. There is no schematic, and no capacitor or resistor list; capacitors appear only in safety notes. It is not self-contained: the general checkout and common procedures are in the PS/2 Hardware Maintenance Manual named above.

What it settles

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  • The PC Server 300 was built with two different system boards, a 486DX2 board and a Pentium board, with separate location diagrams (pp. 25 and 29). Identify the board before using a connector or jumper callout.
  • The PC Server 520 locations are split by model group: EZ models on p. 294, MZ models on p. 301.

Download: IBM PC Server HMM S30H-2501.pdf

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