Introduction In the modern era of RGB mechanical keyboards, wireless Bluetooth peripherals, and USB-C connectivity, it is easy to forget the humble workhorse that defined computing for nearly two decades: the PC/AT Enhanced PS/2 Keyboard with 101 or 102 keys .
For enthusiasts, retro builders, or IT professionals maintaining older industrial equipment, the need to find for these keyboards is still very real. Whether you are running Windows 10, Windows 11, a stripped-down Linux build, or an embedded XP system, the standard drivers often fail—especially when dealing with the 102-key international layout or Fn-key enhancements. Introduction In the modern era of RGB mechanical
| Brand | Common Models | Keys | Layout | |-------|---------------|------|--------| | IBM | Model M (1391401, 1391411) | 101 or 102 | ANSI/ISO | | Dell | AT101W, QuietKey | 101/102 | Both | | Compaq | RT101, RT102 | 101/102 | Both | | HP | KB-0133, SK-2502 | 102 | ISO only | | Chicony | KB-5181, KB-5191 | 101/102 | Both | | Generic | “PC/AT Enhanced PS/2” | 101/102 | Usually ISO | | Brand | Common Models | Keys |
March 2025 – Verified compatible with Windows 11 22H2 and Fedora 38. Open Notepad and press the key between left
This maps the 102nd key (usually scancode 0x56) to the OEM_102 key (0x38). Reboot. Open Notepad and press the key between left Shift and Z (on ISO layout). It should output < or > or \ depending on language settings. Part 6: Troubleshooting Common Problems Problem 1: The patched driver causes BSOD (IRQL_NOT_LESS_OR_EQUAL) Solution: The patched i8042prt.sys might be incompatible with your chipset. Use the registry-only patch instead, keeping Microsoft’s driver. Problem 2: Media keys (Sleep, Wake, Power) still don’t work Solution: Install SharpKeys or KeyTweak to remap those keys. Or use AutoHotkey script: