content_image/1006329.jpg
The rack with the spine mounted is shown in Figure 2-5. If necessary, the spine easily can be relocated for service procedures. 

## 2.2 CPC drawer 

<img src='content_image/1006329.jpg'>

The z15 Model T01 (machine type 8561) server continues the design of z14 by packaging processors in drawers. A z15 CPC drawer includes the following features: 

GLYPH<SM590000> Five single chip modules (SCMs) 

GLYPH<SM590000> Up to 20 Memory DIMMs 

GLYPH<SM590000> Symmetric multiprocessor (SMP) connectivity 

GLYPH<SM590000> Connectors to support PCIe+ Gen3 fanout cards for PCIe+ I/O drawers or coupling fanouts for coupling links to other CPCs 

The z15 can include 1 - 5 CPC drawers (three in the A frame and two in the B frame). A CPC drawer and its components are shown in Figure 2-6 on page 42. 

