Arkon user manual Central Processing Unit CPU for AIMB-258, JWDT1 Watchdog Timer Output Option

Table 1.7: JWDT1: Watchdog Timer Output Option

Closed Pins	Result
1-2	NC
2-3*	System Reset*
*Default	1	1
	NC, 1-2 closed	System Reset, 2-3 closed

Table 1.8: JOBS: HW monitor

Closed Pins	Result
1-2*	Close: Enable OBS Alarm [Default]
1-2	Open: Disable OBS Alarm
*Default	1		2	1	2
		Close		Open

1.12Central Processing Unit (CPU) for AIMB-258

The motherboard AIMB-258 comes with a surface mount 478-pin Zero Insertion Force (ZIF) socket designed for the Intel® Pentium® M / Celeron® M processor (Supports mPGA478M, Micro-FCPGA).

Take one of the marked corner (with gold	Gold Mark
triangle) on the CPU. This mark should
match a specific corner on the socket to
ensure correct installation.

Note! ! Make sure the AC power is off before you install the CPU.

!If installing a dual-core CPU, connect the CPU fan cable to the CPUFAN1 connector to ensure system stability.

Chapter 1 Product Introduction

11 AIMB-258 User Manual