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GLYPH<SM590000> CPC drawer power infrastructure consists of the following components: 

– Three or four Power Supply Units (PSUs) that provide power to the CPC drawer. The loss of one power supply leaves enough power to satisfy the drawer’s power requirements (N+1 redundancy). The power supplies can be concurrently removed and replaced (one at a time) 

– 7x 12v distribution point-of-load (POL) that plug in slots that divide the memory banks 

– 7x Voltage Regulator Modules that plug outside of the memory DIMMs 

– Two Power Control cards to control the five CPC fans at the front of the CPC drawer 

GLYPH<SM590000> Four SMP connectors that provide the CPC drawer to CPC drawer communication (NUMA). 

The front view of the CPC drawer, which includes the cooling fans, FSP/OSC and bulk (power) distribution cards (BDC), is shown in Figure 2-7. 

<img src='content_image/1008910.jpg'>

The rear view of a fully populated CPC Drawer is shown in Figure 2-8 on page 44. Dual port I/O fanouts and ICA SR adapters are plugged in specific slots for best performance and availability. Redundant power supplies and four SMP ports also are shown. 

