Cmos Rtc; Flash Eeprom; Ram Installation - TYAN Thunder 100 S1836 User Manual

above; please contact Microsoft for the USB update.

CMOS RTC

The 440BX and 440GX AGPsets include a Real Time Clock (RTC)
circuit, which provides the date and time for the system. If the external
battery for the RTC is low, it will prevent your system from POSTing,
and you will not get a display. Normally the life span of an external
battery is 2 years. If yours is running low, you will need to replace it
with a new 3V lithium battery (Sony CR2032).

Flash EEPROM

The Thunder 100 uses flash memory to store BIOS programs. It can be
updated as new versions of the BIOS become available. You can
upgrade your BIOS easily using the flash utility (see page 88).

RAM Installation

The Thunder 100 uses a 64-bit data path from memory to CPU and can
1.
2.
accommodate up to 1024MB of SDRAM. The 168-pin DIMMs must
3.
procedure
be of the 3.3V, unbuffered variety. The position of the notch in the
DRAM key position will tell you whether or not a DIMM is unbuffered
(see the figure below). 100MHz SDRAM is recommended. 66MHz
SDRAM can also be used only with CPUs that use a 66MHz bus
speed. All installed memory will be automatically detected, so there is
no need to set any jumpers.
Some details of memory installation:
S1836 Thunder 100
Unbuffered
RFU
Buffered
168-pin DIMM
35