Replace the Motherboard | OMEN by HP 873, HP Obelisk 875-1000, 875, 870 Desktop PC | HP


How to Replace the Motherboard NOTE: Only certain models in this platform series support the configuration of the following components: glass side panel, dust cover, liquid cooling system, lighting control module, LED lighting bar Before you begin: Remove the access panel, system memory, M.2 solid state drive, graphics card, and wireless LAN module. Depending on the configuration, remove the system fan and heat sink, or the liquid cooling system. Remove the CPU. Removal NOTE: The motherboard in this video may look slightly different than similar models, but the removal and replacement procedure is the same. Disconnect the following from the motherboard: 4-pin power connectors rear system fan connector audio connector 24-pin power connector hard drive SATA connectors front I/O USB connector lighting control module connector power switch connector power LED connector NOTE: The power switch connector and the power LED connector have a positive and negative side. A + and – symbol are silkscreened on the motherboard to help identify how the connectors should be inserted. A useful guide is that the red cable (positive) should always be closest to the CPU. Restore the CMOS factory settings first, before replacing the system motherboard. To do so: Remove the battery from the motherboard. Wait thirty seconds. Replace the battery to the motherboard. CMOS factory settings are now reset. NOTE: You will now need to enter system BIOS, and reset the clock in BIOS, after this procedure. Remove the eight P2 Philips-head screws that secure the motherboard to the side chassis. Lift the motherboard out from the I/O panel in the rear, and off of its alignment pins on the side chassis. Remove the motherboard. Replacement Grasp the motherboard on either side and toe the rear I/O connectors into the rear I/O panel until the motherboard sits snugly in place. Replace eight P2 Philips-head screws that secure the motherboard to the side panel. Reconnect the following to the motherboard: 4-pin power connectors rear system fan connector audio connector 24-pin power connector hard drive SATA connectors front I/O USB connector lighting control module connector power switch connector power LED connector

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