![I have no clue how to open this Acer Aspire up. I want to replace the CMOS battery. Any help would be greatly appreciated : r/vintagecomputing I have no clue how to open this Acer Aspire up. I want to replace the CMOS battery. Any help would be greatly appreciated : r/vintagecomputing](https://preview.redd.it/i-have-no-clue-how-to-open-this-acer-aspire-up-i-want-to-v0-kab02qnc5g591.jpg?width=640&crop=smart&auto=webp&s=823581ca9ef79803c5425d20cdf929166fad6455)
I have no clue how to open this Acer Aspire up. I want to replace the CMOS battery. Any help would be greatly appreciated : r/vintagecomputing
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Open Box: Acer Desktop PC Aspire AM3900-U3042 Pentium E6700 (3.20GHz) 6GB DDR3 1TB HDD Intel GMA X4500 Windows 7 Home Premium 64-bit Desktop Computers - Newegg.com
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Acer Aspire XC (256GB SSD Intel Core i3-10105 3.7GHz 8GB RAM) Tower Desktop - XC-1660G-UW92 for sale online | eBay
![Amazon.com: Acer Aspire XC-830-UA91 Desktop | Intel Celeron J4125 Quad-Core Processor (Up to 2.7GHz) | 8GB 2400MHz DDR4 | 256GB NVMe M.2 SSD | 8X DVD | Wi-Fi 5 | Bluetooth 4.2 LE | Windows 10 Home Amazon.com: Acer Aspire XC-830-UA91 Desktop | Intel Celeron J4125 Quad-Core Processor (Up to 2.7GHz) | 8GB 2400MHz DDR4 | 256GB NVMe M.2 SSD | 8X DVD | Wi-Fi 5 | Bluetooth 4.2 LE | Windows 10 Home](https://m.media-amazon.com/images/I/51wpWeXEJ7L.jpg)
Amazon.com: Acer Aspire XC-830-UA91 Desktop | Intel Celeron J4125 Quad-Core Processor (Up to 2.7GHz) | 8GB 2400MHz DDR4 | 256GB NVMe M.2 SSD | 8X DVD | Wi-Fi 5 | Bluetooth 4.2 LE | Windows 10 Home
![Acer Aspire TC-1750-UR11 Desktop Computer; Intel Core i5 12th Gen 12400 2.5GHz Processor; 8GB DDR4-3200 RAM; 512GB Solid - Micro Center Acer Aspire TC-1750-UR11 Desktop Computer; Intel Core i5 12th Gen 12400 2.5GHz Processor; 8GB DDR4-3200 RAM; 512GB Solid - Micro Center](https://90a1c75758623581b3f8-5c119c3de181c9857fcb2784776b17ef.ssl.cf2.rackcdn.com/647297_378968_04_front_comping.jpg)