Sun SPARCstation 10 System Board
Part# 501-2365Manufacturer: Sun MicrosystemsDescription: System Board SPARCstation 10 Motherboard, 0MHz CPU, 0MB MemoryNVRAM: Needs Replacing.Condition: Clean Pull, Vintage Sun.
Compatible Sun Microsystems Workstations:

• SS10
• SPARC 10
• SPARCstation 10

You are purchasing the 501-2365 Motherboard pictured.
Ships SAFE and Fast!!
The following are manufacturer notes for informational purposes regarding SPARC 10 System Boards:
Ethernet Controller Notes

1. The AM7990 is installed on CPU <=501-2365-03.
2. The AM7990 or AM79C90 is installed on CPU >=501-2365-04.
3. The AM7990 is installed on CPU 501-2774-xx.

SPARC Module Notes

1. Do NOT mix SPARC modules of different types or speeds.
2. OBP 2.12 is required if two SM40s are installed.
3. The 501-2219 SM40 supports single processor mode only.
4. The 501-2358 SM40 supports dual processor mode.
5. When adding a second SPARC module, disable the TERMPWR option on internal disk drives with PTC protection. Failure to disable the disk drive TERMPWR option may cause power supply over-current shutdown during power-up if SCSI cable 530-1847-02 is installed.
6. The 100MHz and 125MHz hyperSPARC Modules require OBP 2.19.
7. SuperSPARC II modules require OBP 2.22.
8. The 150MHz hyperSPARC Module requires OBP 2.25.

Hardware System Notes

1. Use 16MB SIMM 501-1785, 501-2273, or 501-2479.
2. Use 64MB SIMM 501-1930 or 501-2480.
3. Install the highest capacity SIMM in Slot 0 under Solaris 1.x.
4. The 270-1733-14 FAB has BABT approval for ISDN use in the UK.
5. The 270-1733-14 FAB has BABT approval for X.25 use in the UK.
6. The Maxtor 207MB Disk Drive requires firmware level 4.22 if it is connected to the on-board SCSI bus.
7. The +12V PTC is connected to Power Connector J1501, Pin-1.

GT and ZX Configuration Notes

1. The GT and ZX Options are not supported on system boards with MSI Rev A 100-2905-02. The ASIC is marked LSI Logic L1A6396.
2. The GT and ZX Options are supported on system boards with MSI Rev B 100-2905-03. The ASIC is marked LSI Logic L1B7596.
3. MSI Rev B was installed by manufacturing on the following 0MB CPUs:
   501-2274-06 Rev 50
   501-1733-16 Rev 52
   501-2259-05 Rev 52
   501-2365-01 Rev 50
4. MSI Rev B is not installed during the repair process unless the ASIC is defective. Repaired boards may or may not have MSI Rev B.
5. Picking is disabled when the ZX is used with MSI Rev A.
6. A replacement CPU, order number UG-S10-MTHRBOARD, is available for customers who purchase ZX as a standalone option for older SS10 systems.

Internal SCSI Bus Notes

1. Disable the TERMPWR option on disk drives installed in the SS10.
2. SCSI bus TERMPWR is grounded on internal cable 530-1847-02. Failure to disable the TERMPWR option on disk drives with PTC protection may cause power supply over-current shutdown during power-up if SCSI cable 530-1847-02 is installed.
3. SCSI bus TERMPWR is grounded on internal cable 530-1847-02. Internal disk drives with fused TERMPWR protection will blow the fuse if the disk drive TERMPWR option is enabled. The TERMPWR option is not needed by the internal SCSI bus.
4. TERMPWR on the internal SCSI bus is not connected to TERMPWR on the external SCSI bus.
5. Regulated termination at J0107 on the internal cable receives power from the SS10 CPU and is not connected to Pin-26 on the disk drive.
6. The inner surface of the SS10 chassis is conductive. Use grommet 330-1390, or bracket 340-2939 with grommet 330-1717 and grommet 330-1390 to mount an internal disk drive. Damage to the disk drive may occur if this mounting hardware is not used.

You are purchasing the 501-2365 Sun SPARCstation 10 System Board pictured.