Classic 3.5-inch slim-line IDE hard drive from IBM’s early 1990s lineup. The IBM H3171-A2 provides 171 MB of reliable formatted storage, making it an excellent choice for restoring authentic 386, 486, and early Pentium-era PCs.

*** Hard drive is tested for no bad sectors and is formatted as a FAT32 partition.

Key Specifications:

• Capacity: 171 MB formatted
• Form Factor: 3.5-inch Slim-Line (SL) – low profile (≈1 inch height)
• Interface: IDE / ATA (40-pin AT-Bus, ATA-1 compatible)
• Spindle Speed: 3,600 RPM
• Cache Buffer: 96 KB (segmented with read look-ahead)
• Average Seek Time: 14 ms (track-to-track ~4 ms)
• Data Transfer Rate: Up to 8.3 MB/s (external PIO Mode 2), ~3 MB/s internal
• Geometry (Logical): 984 cylinders / 10 heads / 34 sectors
• Power: Standard +5V / +12V Molex 4-pin connector
• Jumper Configurable: Master / Slave / Cable Select

Built for Vintage Systems

This genuine IBM drive was commonly used in IBM PS/1, PS/ValuePoint, and many other mid-1990s desktop computers. It performs perfectly in period-correct restorations, DOS, Windows 3.1, and Windows 95/98 retro builds.

*** Hard drive is tested for good S.M.A.R.T. , no bad sectors and is formatted as an NTFS partition. Actual drive is pictured.

The standard advertised capacity for the relevant model is 80–90 GB (often listed as 80 GB or 90 GB decimal), but the formatted/actual usable capacity frequently shows as 92.6 GB (or very close, like 92. something GB) in many tools, BIOS readings, or low-level utilities due to how the drive reports LBA sectors and binary vs. decimal conversion quirks. Some variants of this model were non-short-stroked versions that achieved higher formatted capacity on the same hardware.

Here are the key specifications for the Deskstar 180GXP (focusing on the ~90–92.6 GB variant, typically model IC35L090AVV207-0 or IC35L090AVV207-1):

• Capacity: Advertised ~90 GB / 80–92 GB decimal; formatted often reports 92.6 GB (LBA sectors yield ~92.6 GiB usable in some contexts; actual binary ~86 GiB after overhead)
• Interface: IDE / PATA (Parallel ATA), Ultra ATA/100 (ATA-6), backward compatible with ATA/66, ATA/33, etc. → Max theoretical burst transfer rate: 100 MB/s
• Form Factor: 3.5-inch (standard desktop, ~1-inch height)
• Spindle Speed: 7200 RPM
• Cache / Buffer: 2 MB (standard) or 8 MB (on “-1” suffix models like IC35L090AVV207-1)
• Average Seek Time: ~8.5 ms (read/write; typical for the series)
• Platter / Head Configuration: 2 platters / 3 heads (short-stroked variant of higher-density platters; uses 61.7 GB/platter technology but limited to ~92.6 GB formatted)
• Other Features:
  • Advanced servo and head positioning for reliability (post-Deathstar improvements from earlier 60GXP/75GXP issues)
  • Shock sensors and ramp load/unload for better durability
  • Quieter acoustics than predecessors (ball-bearing or early FDB motor variants)
  • Data protection features like S.M.A.R.T. monitoring
• Power Consumption: Typical for era (~6–9W active; standard 4-pin Molex power connector)
• MTBF (Mean Time Between Failures): ~600,000 hours (manufacturer claim; improved over earlier “Deathstar” models)
• Acoustics: ~28–32 dB idle/seek (relatively quiet for 7200 RPM)
• Compatibility: Works with older motherboards supporting IDE/ATA; jumper settings for Master/Slave/Cable Select (standard IBM/Hitachi layout: master pins closed, slave open, CS for cable-determined role)
• Jumper Settings (typical for series):
  • Master (or single): Jumper on pins 1-2 or as labeled on drive
  • Slave: No jumper
  • Cable Select (CS): Jumper on CS pins; use 80-wire cable for best ATA/100 performance