That's because the G5 , 7080 MT,  XPS 8940 have same PSU   PSU2VD0G 360w Liteon 5K7J8 500w Delta99TPH 500w LiteonY7R0X 500w Chicony   [IMAGE]Y7R0X                Video cardsGPCKW MSI GeForce RTX 2070 Super, 8GBG7CH1 MSI GeForce RTX 2060 Super, 8GB, DHRKF MSI GeForce RTX 2060, 6GB, KPNXF MSI GeForce GTX 1660 Ti, 6GB, 7MKYT MSI GeForce GTX 1660 Super, 6GB, 4WY5P ECS GeForce GTX 1650 Super, 4GB, 7HNWN ECS GeForce GT 1030, 2GB, 4FCCX ECS RX 5700 XT, 8GB, 38MPY ECS RX 5700, 8GB, NH5PX MSI RX 5600 XT, 6GB, 5V7N7 MSI RX 5300, 3GB,  RamFour UDIMM slotsMaximum 128GB2666 MHz, i3/i5 CPU2933 MHz, i7/i9 CPU128GB = 4x32GB64GB = 2x32GB, 4x16GB32GB = 1x32GB, 2x16GB16GB = 1x16GB, 2x8GB8GB = 1x8GB, 2x4GB To be clear from a Dell warranty and policy perspective, a user should not expect our OEM BIOS and OEM tested/validated memory sticks to work without issues using non-tested/non-validated retail memory sticks.The XPS 8940 is shipped with 3200MHz memory. However, with Intel Core i3/i5 processors, it is limited to 2666MHz. With Intel Core i7/i9 processors, it is limited to 2933MHz. 732YD 32GB DDR4, 3200MHz, 2Rx8, Unbuffered, 288 pin, Dual Rank, 1.2V, Non-ECC, Non-Encrypted, Hynix HMAA4GU6AJR8N-XN/HMAA4GU6CJR8N-XN, Micron MTA16ATF4G64AZ-3G2B1/MTA16ATF4G64AZ-3G2E1, Samsung M378A4G43AB2-CWEC5N22 16GB DDR4, 3200MHz, 2Gx64, 2RX8, Unbuffered, 288 pin, Dual Rank, 1.2V, Non-ECC, Non-Encrypted, Adata AO2P32NCST2-BZ7SHD, Hynix HMA82GU6DJR8N-XN, Kingston KC5N22-HYD/KC5N22-MIE, Micron MTA16ATF2G64AZ-3G2J1, Samsung M378A2K43EB1-CWEV0M5R 8GB DDR4, 3200MHz, 1Gx64, 1RX8, Unbuffered, 288 pin, Single Rank, 1.2V, Non-ECC, Non-Encrypted, Adata AO2P32NC8T1-BZ5SHD, Hynix HMA81GU6CJR8N-XN/HMA81GU6DJR8N-XN, Kingston KV0M5R-HYD/KV0M5R-MIE, Micron MTA8ATF1G64AZ-3G2J1, Samsung M378A1K43EB2-CWE36FTX 4GB DDR4, 3200MHz, 512x64, 1RX16, Unbuffered, 288 pin, Single Rank, 1.2V, Non-ECC, Non-Encrypted, Adata AO2P32NC4U1-BZNSHD, Hynix HMA851U6DJR6N-XN, Kingston K36FTX-MIE, Micron MTA4ATF51264AZ-3G2J1, Samsung M378A5244CB0-CWE
Hello,  Starting a couple months ago my Dell desktop is powering itself off.   I will use it a short while, come back, and it's off.  It has turned off while using it.  My first thought is maybe the power supply (since Windows doesn't log anything about it) Where can I find a replacement power supply for this?  I've had no luck Amazon, Ebay, or any of the popular places.
Dell Optiplex XE3 - Power supply