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Servers:

Sun Blade X6275 Sun Fire X2270

Options 4670A / 4672A / 4673A / 4674A
Options 8335A / 8336A / 8337A / 8338A

371-4426	371-4428	371-4429	371-4427
DDR3-1066/PC3-8500 1-Rank/1Gbit SDRAM 2GB Registered DIMM 2GB Option 4670A/8335A without Heat Spreader	DDR3-1333/PC3-10600 1-Rank/1Gbit SDRAM 2GB Registered DIMM 2GB Option 4673A/8337A without Heat Spreader	DDR3-1333/PC3-10600 2-Rank/1Gbit SDRAM 4GB Registered DIMM 4GB Option 4674A/8338A with Heat Spreader	DDR3-1066/PC3-8500 2-Rank/2Gbit SDRAM 8GB Registered DIMM 8GB Option 4672A/8336A with Heat Spreader

Sun Blade X6275 Codename: Vayu Sun Fire X2270 Codename: Wasp

Sun Blade X6275 Notes

1. The minimum configuration is three DIMMs per CPU in slots D1, D3, and D5.
2. Memory speed is dependent on the number of DIMMs and the CPU QuickPath Interconnect (QPI).
3. Maximum speed is 1333MHz when 1333MHz DIMMs are installed in D1, D3, and D5.
4. Maximum speed is 1066MHz when any speed DIMMs are installed in all slots.
5. Node 0 and Node 1 require the same memory configuration.

Sun Fire X2270 Notes

1. DIMM speed is limited by the CPU QuickPath Interconnect (QPI) speed.
2. Do not install DIMMs in slots next to an empty CPU socket.
3. Install the same number of identical DIMMs across all CPU sockets.
4. Install Blue socket DIMMs D5/D3/D1 then install Black socket DIMMs D4/D2/D0.
5. Use of the same DIMM size and speed is recommended for maximum performance.

Note

Incorrect SPD programming of 2GB Micron DIMM 371-4428-01 prevents correct
timing when two DIMMs per channel are installed. This does not affect Hynix
or Qimonda DIMMs. Micron SPD programming is corrected in 371-4428-02.

References

1. Sun Blade X6275 Server Module Documentation.
2. Sun Fire X2270 Server Documentation.