Lenovo ThinkCentre M90a User Manual

3. Remove the optical drive. See “Optical drive” on page 53.
4. Remove the optical drive holder. See “Optical drive holder” on page 56.
5. Remove the system board shield. See “System board shield” on page 58.
6. Remove the VESA mount bracket cover. See “VESA mount bracket cover” on page 61.
7. Depending on your computer model, refer to one of the following to replace the VESA mount bracket.
• M70a
Figure 36. Removing the VESA mount bracket
Figure 37. Installing the VESA mount bracket
• M90a
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M70a and M90a User Guide

Lenovo ThinkCentre M90a Specifications

General

Storage	Up to 2TB HDD or 1TB SSD
Processor	Up to 10th Gen Intel Core i9
Memory	Up to 64GB DDR4
Graphics	Integrated Intel UHD Graphics 630
Display	23.8-inch FHD (1920x1080) IPS
Operating System	Windows 10 Pro
Ports	HDMI, DisplayPort, Ethernet, audio jack
Audio	Integrated stereo speakers, dual array microphone
Wireless	Wi-Fi 6, Bluetooth 5.1