![Amazon.com: Genuine Dell Motherboard For Optiplex GX520 Desktop DT Systems Dell Part Numbers: PJ479, XG312, X7841, MD573, RJ290, UG982 : Electronics Amazon.com: Genuine Dell Motherboard For Optiplex GX520 Desktop DT Systems Dell Part Numbers: PJ479, XG312, X7841, MD573, RJ290, UG982 : Electronics](https://m.media-amazon.com/images/I/41hll5oCccL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Genuine Dell Motherboard For Optiplex GX520 Desktop DT Systems Dell Part Numbers: PJ479, XG312, X7841, MD573, RJ290, UG982 : Electronics
![CN-0RJ291 For Dell Optiplex GX520 MT Motherboard 0RJ291 RJ291 LGA 775 DDR2 Mainboard 100% Tested Fully Work - AliExpress CN-0RJ291 For Dell Optiplex GX520 MT Motherboard 0RJ291 RJ291 LGA 775 DDR2 Mainboard 100% Tested Fully Work - AliExpress](https://ae01.alicdn.com/kf/Sbe5d51f6923e421a8f9c9393e3fe144do.png_640x640.png_.webp)
CN-0RJ291 For Dell Optiplex GX520 MT Motherboard 0RJ291 RJ291 LGA 775 DDR2 Mainboard 100% Tested Fully Work - AliExpress
![Dell Genuine Dell PY428, PJ478, C8810, PY186, XG309, JD992 Optiplex GX520 Intel 945G Express Socket LGA775 Small Form Factor SFF DDR2 Motherboard Logic Mainboard Compatible Part Numbers: PY428, PJ478, C8810, PY186, XG309, Dell Genuine Dell PY428, PJ478, C8810, PY186, XG309, JD992 Optiplex GX520 Intel 945G Express Socket LGA775 Small Form Factor SFF DDR2 Motherboard Logic Mainboard Compatible Part Numbers: PY428, PJ478, C8810, PY186, XG309,](https://s3-ap-northeast-1.amazonaws.com/media.want.jp/2A/A5E33DC18D342A/A5E33DC18D342A_3_1000.webp)