Description
IBM 6323560 XM 64-256KB System Board 8-Bit ISA 6323362 XT 5155 8088 PC
The IBM 6323560 (also referenced as 6323362) is an XM-series 8-bit ISA system board designed for the IBM PC XT platform, configured for 64 to 256KB of onboard RAM. This board was pulled from an IBM XT 5155 — IBM's portable/luggable PC based on the Intel 8088 processor. It arrives with its DIP RAM chips, EPROM, and BIOS chip all installed on the board.
Specifications & What's Included
- Part Number: 6323560 (board series designation: XM)
- Secondary Part Number / Reference: 6323362
- CPU Platform: Intel 8088
- Bus Architecture: 8-bit ISA
- Expansion Slots: 8 × 8-bit ISA slots
- Onboard RAM Configuration: 64–256KB (DIP RAM chips installed)
- EPROM: installed on board
- BIOS chip: installed on board
- Power Connector: AT-style power supply connectors (P8/P9)
- Keyboard Connector: AT keyboard header
- Pulled from: IBM XT 5155 portable PC
- Included: system board as shown — RAM chips, EPROM, and BIOS installed; no cables or power supply included
Applications
The IBM PC XT, introduced in 1983, was the successor to the original IBM PC and served as the foundation for a generation of business computing through the mid-1980s. The 8088-based XT platform used 8-bit ISA (Industry Standard Architecture) expansion slots, and system boards like this one were the heart of IBM XTs and compatible machines used throughout corporate offices, engineering workstations, and educational institutions of the era. The IBM 5155 was IBM's luggable portable variant of the XT, sharing the same fundamental board architecture but housed in a transportable case with a built-in CRT display. Today, boards like this are sought by vintage computer collectors and restorers working to maintain, repair, or rebuild IBM XT 5155 portables and compatible XT-class systems. The 8-bit ISA slot standard also saw use in some 286-class AT machines running in 8-bit compatibility mode, extending the useful life of XT-era expansion cards.
This IBM 6323560 XM 64-256KB System Board was pulled from an IBM XT 5155 8088 PC and has not been powered up or tested at our facility. It appears to be in good used condition overall. The board comes with its RAM chips, EPROM, and BIOS chip installed, exactly as shown in the photos. All eight 8-bit ISA expansion slots, the AT power supply connectors, and the AT keyboard connector are present. There is general surface grime and age-related patina consistent with vintage equipment of this era. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
IBM |
Model: |
6323560 |
Secondary Model: |
6323362 |
MPN: |
6323560 |
SKU: |
50119 |
Type: |
ISA Motherboard / System Board |
Series: |
XM |
Compatible With: |
IBM XT 5155, IBM PC XT 8088 |
CPU Type: |
Intel 8088 |
Bus Type: |
8-Bit ISA |
Number of Expansion Slots: |
8 |
Expansion Slot Type: |
8-Bit ISA |
Memory (RAM): |
64-256KB (RAM chips installed) |
Power Connector: |
AT Power Supply Connectors |
Keyboard Connector: |
AT Keyboard Connector |
Included Components: |
RAM chips, EPROM, BIOS chip installed |
Form Factor: |
Full-Size XT |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Board only as shown — RAM chips, EPROM, and BIOS installed. No cables or power supply included. |
Condition Notes: |
This IBM 6323560 XM 64-256KB System Board was pulled from an IBM XT 5155 8088 PC and has not been tested at our facility. Appears in good used condition with RAM, EPROM, and BIOS chips installed. Please contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |