4. To install a new power supply, insert the new power supply assembly with the handle open into the
chassis. Then, pivot the handle as shown to fully install the new power supply assembly into position.
Note: When pivoting the handle to the closed position, push hard if you feel resistance.
Figure 117. Installing the power supply assembly
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 220.
PCIe card
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
Your computer comes with the following combinations: one standard PCI card slot, one PCIe 3.0 x4 card
slot, one PCIe 3.0 x8 card slot, and three PCIe 3.0 x16 card slots.
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P720 Hardware Maintenance Manual