|  | 
| System Board |  
| Option # | Manufacturing Part #
 | Description | Previous Part #
 |  
| n/a | 541-0569 [F] | 4-Core, UltraSPARC T1, 1.0GHz System + I/O Board | n/a |  
|  | CPU/Memory + I/O Board Assembly
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
| n/a | 541-0570 [F] | 8-Core, UltraSPARC T1, 1.0GHz System + I/O board | n/a |  
|  | CPU/Memory + I/O Board Assembly
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
| n/a | 541-0599 [F] | 6-Core, UltraSPARC T1, 1.0GHZ System + I/O Board | n/a |  
|  | CPU/Memory + I/O Board Assembly
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
| n/a | 541-0827 [F] | 8-Core, UltraSPARC T1, 1.2GHz System + I/O Board | n/a |  
|  | CPU/Memory + I/O Board Assembly
 | n/a |  
|  |  | n/a |  
|  |  | n/a |  
| NOTE: System Boards from the RoHS compliant Sun Fire T2000 are not backward compatible to the non RoHS Sun Fire T2000. NOTE: In the the Sun Fire T2000, the I/O and System Boards are a single assembly.
 
 |  
| 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
 |  |