System Features - IBM P 615 series Service Manual

System Features

The Model 6C3 and Model 6E3 support many of the same features. The following figure shows the back
of the two system units. Both system units have the same layout from the rear. When the features are
described in this section, the descriptions apply to both models.
Bus Architecture
Six PCI-X slots are available. Four of these slots (1, 4, 5, and 6) are 64-bit capable at 133 MHz, 3.3 volts.
The remaining PCI-X slots (2 and 3) are 32-bit capable at 66 MHz, 3.3 volts. The slots are numbered on
the rear of the chassis from left to right or top to bottom, 1 through 6.
All 64-bit PCI-X slots are capable of running either 64-bit or 32-bit adapters. However, a 32-bit adapter
operates in a 32-bit mode and shows no performance advantage while running in a 64-bit slot. The
following illustration shows the PCI adapter slot locations when viewing from the rear of the system.
Processors
v One-way and two-way processor DCMs (double chip modules) are available.
v An 8MB L3 cache is contained in the processor DCM.
Memory
v 1 GB to 16 GB ECC (error code correction) DDR (double data rate) SDRAM (synchronous dynamic
random-access memory)
v Memory DIMMs plug into the system backplane (8 DIMM slots).
v DIMMs must be populated in quads (a single memory feature contains four DIMMs).
v Memory quads can be different memory sizes.
v A system can have a maximum of 16 GB of memory.
2 EserverpSeries 615 Service Guide
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1 3 4 5 6
Model 6C3
1
2
3
4
5
6
Model 6E3