IBM SCOD-3ZVQ5W Configuration And Options Manual page 340

HS20 - 7981 processor options
SBB Option
Number Number
39Y6600 25R8887
39Y6601 25R8888
Notes:
1. If two processors are installed they must have the same core frequency, Front Side Bus frequency
(667MHz) and the same L2 cache size.
2. The CPU with the lowest stepping level must be installed as CPU 1.
3. A 7981 Blade using a single Dual-Core Intel Xeon Processor CPU must have it installed in CPU 1 socket.
4. The system should not be allowed to boot with an empty CPU 1 socket.
5. If CPU 2 socket is empty, it must have a CPU heat sink filler installed.
6. An electrical terminator installed in the CPU 2 socket is not required.
Figure 82. HS20 - 7981 planar
332
COG
Feature
Code
0655 Dual-Core Intel® Xeon® Processor LV 1.67 GHz
0656 Dual-Core Intel® Xeon® Processor LV 2.0 GHz
Processor Options
SMP
Support
2FY, EFY
3FY