|  | 
| System Board |  
| Option # | Manufacturing Part #
 | Description | Previous Part #
 |  
| B24-BZ2-4540-CONT 4
 [S] | System Controller Upgrade Kit (X4500 to X4540), |  
| 541-4144 | System Controller Assembly (32GB, 2 × 2.6GHz), L | n/a |  
|  | Heatsink with Captive Screws and Springs, 
 | n/a |  
|  | 2GB DDR667/PC2-5300 DIMM, 
 | n/a |  
|  | 2.6 GHz CPU, Opteron 2435 6-Core, D0 Stepping, 75W, 
 | n/a |  
|  | System Controller Assembly, L
 | 541-0491
 [F] |  
| B24-FSZ2-4540-CONT 5
 [S] | System Controller Upgrade Kit (X4500 to X4540), L |  
| 541-3431 | Upgraded X4540 System Controller (32GB, 2× 2.36GHz), L | n/a |  
|  | Heatsink with Captive Screws and Springs, 
 | n/a |  
|  | 2.3 GHz CPU, Opteron 2356 Quad Core, B3 Stepping, 75W,  
 | n/a |  
|  | 2GB DDR667/PC2-5300 DIMM, 
 | n/a |  
|  | System Controller Assembly, L
 | 541-0491
 [F] |  
| n/a | 541-0776-09 2 | System Controller Assembly (8 × 2GB) (2 × 2.6GHz), L | n/a |  
|  | Graphics Redirect and Service Processor (GRASP) Assembly, L
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
|  | System Controller Assembly, L
 | n/a |  
|  |  | n/a |  
|  | CPU Board (2 × 2.6GHz), L
 | n/a |  
|  | Panasonic BR2032 Battery, 
 | n/a |  
|  | 25mm Heatsink Shoulder Screw, 
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
|  | 2.6GHz Dual Core CPU, AMD Opteron 285, E6 Stepping, 95W
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
| n/a | 541-0776-10 3 | System Controller Assembly (8 × 2GB) (2 × 2.8GHz), L | n/a |  
|  | 25mm Heatsink Shoulder Screw, 
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
|  | 2.8GHz Dual Core CPU, AMD Opteron 290, E6 Stepping, 95W, L
 | n/a |  
|  | Graphics Redirect and Service Processor (GRASP) Assembly, L
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
|  | System Controller Assembly, L
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
|  | Panasonic BR2032 Battery, 
 | n/a |  
|  |  | n/a |  
| 1 The FRU for 541-0780 is 541-1915. 2 Assembly 541-0776 is labeled X4500 System Controller (SC).
The packing slip describes 541-0776-07, -08, and -09 as ASSY,GFX/CNTRLLR,2X285,8X2GB.
 3 Assembly 541-0776 is labeled X4500 System Controller (SC).
The packing slip describes 541-0776-10 as ASSY,SC,2X290,8X2GB.
 4 Only for Solaris ZFS/X4500 installations.
 Upgraded system does not support third power supply.
 See Sun Fire X4500-to-X4540 Migration User's Guide
for information on revised disk mapping.
 5 Only for Solaris ZFS/X4500 installations.
 Upgraded system does not support third power supply.
 See
  Sun Fire X4500-to-X4540 Migration User's Guide
for information on revised disk mapping. 
 |  
| Table Legend |  
| [F] = Field Replaceable Unit (FRU) [C] = Customer Replaceable Unit (CRU)
 [S] = Supported, but can no longer be ordered with this system
 [N] = No longer supported for this system
 Price = Price this Part
 |  |