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Pentium Based Processor Board
256MB Maximum. Eight 36 bit SIMM sockets. Minimum system configuration = 16MB. 32MB SIMMs are industry standard and are not the same as those used in the XEN-LS II/PC.
Memory is configured as 128 bit wide, thus SIMMs must be installed in two groups of four, as follows
MM1, 3, 5, 7
MM2, 4, 6, 8
e.g. 16MB = 4 x 4MB SIMMs
| MB | Make | Model | Type | Part Number |
| 240 | Quantum | LPS 240S | SCSI | TF50162 |
| 380 | IBM | 0661 | SCSI | TE48235 |
| 515 | Maxtor | MXT-540SL | SCSI | TF50191 |
| 540 | Quantum | LPS 540 S | SCSI | |
| 1,000 | IBM | 0662 S12 | SCSI | XB52689 |
| 1,200 | Maxtor | MXT-1240S | SCSI | TE50199 |
| 2,000 | IBM | 0664 M1H | SCSI | TG51270 |
| Tape | ||||
| 150 | Archive | Viper150 | SCSI | SU52600 |
| 525 | Archive | Viper525 | SCSI | SU52601 |
| 1.3GB | Archive | Python | SCSI | TE49468 |
| 2-8GB | Archive | DDS DAT | SCSI | SU52593 |
| Floppy | ||||
| 2 MB | Sony | MP-F17W-0A | 3.5" | |
| 1.2Mb | Panasonic | JU-475-4 | 5.25" | |
| CD-ROM | ||||
| Sony | CDU561 | SCSI | SU52602 |
| 3Com 32 bit bus master Ethernet card, thin/thick wire (3C527B) | XB50379 |
| 3Com 16 bit Ethernet card, thin/thick wire (3C523B) | XB48125 |
| 3Com 16 bit Ethernet card, UTP/thick wire (3C523B-TP) | XB48127 |
| 3Com 32 bit Ethernet card, thin/thick wire (3C529) | XB51624 |
| 3Com 32 bit Ethernet card, UTP/thick wire (3C529-TP) | XB51625 |
| IBM Token Ring 4/16Mb/s LAN card (25F9528) | XB49546 |
I/O Board
SW1
| Switch | 2nd Floppy Device |
 |
5.25" |
 |
3.5" |
SW2 Misc. Settings (I/O Board)
Switch |
On |
Off |
1 |
Cache Enable |
Cache Disable |
2 |
Flash Enable |
Flash Disable |
3 |
N/A |
|
4 |
N/A |
|
5 |
N/A |
|
6 |
FTs |
FTe |
SW3 CMOS RAM Clear
| Position | |
 |
Clear CMOS |
 |
Normal Use |
SW4 Number of Drives
| Switch Position | On |
|
Dual Drives |
|
Single Drive |
SW5 Select 4MB Primary Floppy Drive
| Position | |
|
2MB Floppy |
|
4MB Floppy |
Apricot LOC Technology security.
To discharge CMOS use SW3 on the I/O board.
