Acer AB460 F1 User Manual - Page 229

209 Item 1 2 3 4 5 6 7 8 9 10 11 Description CPU Sockets DIMM Slots Space for 2.5" SATA Hard Drive Gbx Connector (for power and logic to backplane) BIOS Chip Onboard Battery Intel 5500 Chip ICH10R Chip Front IO Module Matrox G200eW Graphics chip JPT1 (CMOS clear) Jumpers The jumpers present on the mainboard are used by the manufacturer only; there are no jumpers used to configure the operation of the mainboard. CMOS Clear JPT1 is used to clear CMOS and will also clear any passwords. JPT1 consists of two contact pads (#11 in Figure 3-135). Clearing CMOS 1. First power down the blade and remove it from the enclosure. 2. Remove the blade cover to access the mainboard (see Section : Removing/Replacing the Blade Cover on page 93 for further details). Short the CMOS pads with a metal object such as a small screwdriver. 3. Replace the cover, install the blade back into the enclosure and power it on.