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## 2.3.5 Peripheral Component Interconnect Express adapters 

Each DS8900F processor complex contains multiple PCIe adapters. These adapters enable point-to-point connectivity between CPCs, I/O enclosures, I/O adapters, and the HPFEs. 

Depending on the configuration, up to seven PCIe adapters are in the DS8900F processor complex. 

A DS8900F processor complex is equipped with the following PCIe adapters.: 

GLYPH<SM590000> The DS8910F model 993 has two single-port PCIe adapters in slots C6 and C12 

GLYPH<SM590000> The DS8910F model 994 has four single-port PCIe adapters in slots C6, C8, C9 and C12. 

GLYPH<SM590000> The DS8950F model 996 has two different processor configuration for PCIe adapters: 

– 1 x 10-core CPC maximum configuration for one frame has four single-port PCIe adapters in slots C6, C8, C9 and C12. 

– 2 x 10-core CPC maximum configuration for two frames has six single-port PCIe adapters in slots C2, C4, C6, C8, C9 and C12, and one two-port PCIe adapter in slot C3fi. 

Figure 2-14 shows the PCIe adapter locations in the DS8910F CPC. 

<img src='content_image/1004969.jpg'>

Figure 2-15 shows the PCIe adapter locations in the DS8950F CPC. 

<img src='content_image/1004970.jpg'>

