IBM CORPORATION
PC SERVER 325 (TYPE 8639) MODEL PBO, PTO, PTW, RBO
| 
 Processor  | 
 Pentium II/Pentium Pro  | 
| 
 Processor Speed  | 
 233/266MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 Unidentified  | 
| 
 Maximum Onboard Memory  | 
 512MB (EDO supported)  | 
| 
 Maximum Video Memory  | 
 1MB  | 
| 
 Cache  | 
 256KB  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 305mm x 244mm  | 
| 
 I/O Options  | 
 32-bit PCI slots (6), Ethernet 10BaseT connector, floppy drive interface, Wide SCSI interfaces (2), parallel port, PS/2 mouse port, serial port, USB connectors (2)  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Chassis fan power  | 
 C1  | 
 Ethernet 10Base T connector  | 
 CN4  | 
| 
 Auxiliary power  | 
 C2  | 
 Parallel port  | 
 CN5  | 
| 
 Hard drive fan power  | 
 C3  | 
 Wide SCSI interface (external)  | 
 CN6  | 
| 
 System fan power  | 
 C4  | 
 Serial port  | 
 CN7  | 
| 
 Operator panel connector  | 
 C5  | 
 Wide SCSI interface (internal)  | 
 CN8  | 
| 
 Chassis fan power  | 
 C6  | 
 Floppy drive interface  | 
 CN9  | 
| 
 Speaker  | 
 C7  | 
 32-bit PCI slots  | 
 PC1 - PC6  | 
| 
 Keylock  | 
 C8  | 
 CPU slot  | 
 SL1  | 
| 
 PS/2 mouse port  | 
 CN1  | 
 System Management slot  | 
 SL2  | 
| 
 USB connector  | 
 CN2  | 
 RAID slot  | 
 SL3  | 
| 
 USB connector  | 
 CN3  | 
 
  | 
 
  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter (video enable/disable)  | 
 J25  | 
 Unidentified  | 
| 
 
  | 
 Flash write disabled  | 
 J23C  | 
 Pins 1 & 2 closed  | 
| 
 
  | 
 Flash write enabled  | 
 J23C  | 
 Pins 2 & 3 closed  | 
| 
 
  | 
 BIOS normal operation  | 
 J23D  | 
 Pins 1 & 2 closed  | 
| 
 
  | 
 BIOS recovery mode  | 
 J23D  | 
 Pins 2 & 3 closed  | 
| 
 
  | 
 Boot block disabled  | 
 J23E  | 
 Pins 1 & 2 closed  | 
| 
 
  | 
 Boot block enabled  | 
 J23E  | 
 Pins 2 & 3 closed  | 
| 
 
  | 
 VPD write disabled  | 
 J23F  | 
 Pins 1 & 2 closed  | 
| 
 
  | 
 VPD write enabled  | 
 J23F  | 
 Pins 2 & 3 closed  | 
| 
 »  | 
 CMOS memory normal operation  | 
 J23G  | 
 Pins 1 & 2 closed  | 
| 
 
  | 
 CMOS memory clear  | 
 J23G  | 
 Pins 2 & 3 closed  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J23H  | 
 Open  | 
| 
 VIDEO MEMORY CONFIGURATION  | |
| 
 Size  | 
 Bank 0  | 
| 
 1MB  | 
 (2) 256K x 16  | 
| 
 CPU TYPE SELECTION  | ||
| 
 Type  | 
 J28A  | 
 J28B  | 
| 
 Pentium II  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 Pentium Pro  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 VRM connector  | 
 VRM1  | 
 VRM connector  | 
 VRM2  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter  | 
 J8  | 
 Unidentified  | 
| 
 DIMM CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 8MB  | 
 (1) 1M x 64  | 
 None  | 
 None  | 
 None  | 
| 
 16MB  | 
 (1) 2M x 64  | 
 None  | 
 None  | 
 None  | 
| 
 16MB  | 
 (1) 1M x 64  | 
 (1) 1M x 64  | 
 None  | 
 None  | 
| 
 24MB  | 
 (1) 2M x 64  | 
 (1) 1M x 64  | 
 None  | 
 None  | 
| 
 24MB  | 
 (1) 1M x 64  | 
 (1) 1M x 64  | 
 (1) 1M x 64  | 
 None  | 
| 
 32MB  | 
 (1) 4M x 64  | 
 None  | 
 None  | 
 None  | 
| 
 32MB  | 
 (1) 2M x 64  | 
 (1) 2M x 64  | 
 None  | 
 None  | 
| 
 32MB  | 
 (1) 1M x 64  | 
 (1) 1M x 64  | 
 (1) 1M x 64  | 
 (1) 1M x 64  | 
| 
 40MB  | 
 (1) 4M x 64  | 
 (1) 1M x 64  | 
 None  | 
 None  | 
| 
 48MB  | 
 (1) 4M x 64  | 
 (1) 2M x 64  | 
 None  | 
 None  | 
| 
 48MB  | 
 (1) 2M x 64  | 
 (1) 2M x 64  | 
 (1) 2M x 64  | 
 None  | 
| 
 64MB  | 
 (1) 8M x 64  | 
 None  | 
 None  | 
 None  | 
| 
 64MB  | 
 (1) 4M x 64  | 
 (1) 4M x 64  | 
 None  | 
 None  | 
| 
 64MB  | 
 (1) 2M x 64  | 
 (1) 2M x 64  | 
 (1) 2M x 64  | 
 (1) 2M x 64  | 
| 
 72MB  | 
 (1) 8M x 64  | 
 (1) 1M x 64  | 
 None  | 
 None  | 
| 
 80MB  | 
 (1) 8M x 64  | 
 (1) 2M x 64  | 
 None  | 
 None  | 
| 
 96MB  | 
 (1) 8M x 64  | 
 (1) 4M x 64  | 
 None  | 
 None  | 
| 
 96MB  | 
 (1) 4M x 64  | 
 (1) 4M x 64  | 
 (1) 4M x 64  | 
 None  | 
| 
 128MB  | 
 (1) 16M x 64  | 
 None  | 
 None  | 
 None  | 
| 
 128MB  | 
 (1) 8M x 64  | 
 (1) 8M x 64  | 
 None  | 
 None  | 
| 
 128MB  | 
 (1) 4M x 64  | 
 (1) 4M x 64  | 
 (1) 4M x 64  | 
 (1) 4M x 64  | 
| 
 136MB  | 
 (1) 16M x 64  | 
 (1) 1M x 64  | 
 None  | 
 None  | 
| 
 144MB  | 
 (1) 16M x 64  | 
 (1) 2M x 64  | 
 None  | 
 None  | 
| 
 160MB  | 
 (1) 16M x 64  | 
 (1) 4M x 64  | 
 None  | 
 None  | 
| 
 192MB  | 
 (1) 16M x 64  | 
 (1) 8M x 64  | 
 None  | 
 None  | 
| 
 192MB  | 
 (1) 8M x 64  | 
 (1) 8M x 64  | 
 (1) 8M x 64  | 
 None  | 
| 
 256MB  | 
 (1) 16M x 64  | 
 (1) 16M x 64  | 
 None  | 
 None  | 
| 
 256MB  | 
 (1) 8M x 64  | 
 (1) 8M x 64  | 
 (1) 8M x 64  | 
 (1) 8M x 64  | 
| 
 384MB  | 
 (1) 16M x 64  | 
 (1) 16M x 64  | 
 (1) 16M x 64  | 
 None  | 
| 
 512MB  | 
 (1) 16M x 64  | 
 (1) 16M x 64  | 
 (1) 16M x 64  | 
 (1) 16M x 64  | 
| 
 Note: Board accepts EDO memory.  | ||||
| 
 CACHE CONFIGURATION  | 
| 
 Note: 256KB cache is located on the Pentium II CPU.  | 
| 
 CPU SPEED SELECTION  | ||||||
| 
 Speed  | 
 J9  | 
 J10  | 
 J12  | 
 J17  | 
 J18  | 
 J20  | 
| 
 233MHz  | 
 2 & 3  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 266MHz  | 
 2 & 3  | 
 Open  | 
 2 & 3  | 
 Open  | 
 Closed  | 
 Closed  | 
| 
 Note: Pins designated should be in the closed position.  | ||||||
| 
 CPU SPEED SELECTION (CON’T)  | |||||
| 
 Speed  | 
 J27  | 
 J28  | 
 J29  | 
 J30  | 
 J38  | 
| 
 233MHz  | 
 Closed  | 
 Open  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 266MHz  | 
 Closed  | 
 Closed  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 Note: Pins designated should be in the closed position.  | |||||
| 
 MISCELLANEOUS TECHINCAL NOTE  | 
| 
 A diagram & jumper settings for the Pentium Pro CPU card is unidentified.  |