Acer AB2x280 F1 Acer AB7000 Enclosure with AB2x280 F1 and AB460 F1 Blade Serve - Page 36

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. Clearing CMOS JBT1 is used to clear CMOS and will also clear any passwords. JBT1 consists of two contact pads located near the BIOS chip (refer to item 12 in the AB460 F1 mainboard). 1. First power down the blade and remove it from the enclosure. 2. Remove the blade cover to access the mainboard (see "Removing/Replacing the blade cover" on page 38 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. 28 Chapter 5