Jumpers And Switches - Abit IT5E Series User Manual

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(2) Jumpers and Switches

CCMOS : Delete the contents of the CMOS
This jumper is set on pins 1 and 2 at the factory, in order for
the computer to function normally, so please do not change
this setting. The main feature of this jumper is to solve
situations where the computer crashes due to improper usage.
For instance:
l You have forgotten the password you set.
l You have changed inappropriately the settings in the BIOS
menu.
l You want to change the version of flash BIOS.
All these errors are very serious, you must avoid them. But if
you have made one of these errors, this jumper can save your
life. First turn off the power supply and open the computer
case, than place the jumper on pins 2 and 3 in order to save
your computer. But if you use your computer normally, you
should not need to use this feature.
After you have deleted theCMOS information, the computer is saved, but
you still have to go back to the BIOS Setup menu, and reset one by one
all the specifications: CPU, date, hour, FDD and HDD parameters. etc.,
before your computer will get back into normal operation.
JC1: Installing the cache memory in the cache memory extension
slot (COAST)
On delivery, the IT5 mainboard comes with a 256K or 512K
cache memory. If you already have 512K, your mainboard will
not need a cache extension, and you will not be able to see the
extension slot. But if you have only 256K, we have reserved an
extension slot which permits you to extend the cache to 512K.
This is set up at the factory with no jumper, which is what we
call OFF status. You will need to put the jumper in place only
when you extend the cache. For more details, refer to the section
which deals with cache memory.
Chapter 2