First post, by assasincz
I recently got hold of Shuttle HOT-409 (rev. 2.2) mainboard for quote cheap and I am trying to bring it to life.
The barrell battery, even though long gone, has wreaked havoc. However apart from CMOS battery circuitry which mostly got eaten away, the other (keyboard related) circuitry looks good, no further damage.
I note that the board has no on-board SRAMS for L2 cache.
Wanting to try to turn it on, I plopped in a 486SX-33Mhz, 4pcs 1MB SIMMs 30ps in Bank 0, set jumpers (apart from L2 cache settings) and tried powering it on - not suprisingly, I get nothing.
From SPK, I get series of 3 long beeps, approx 2 sec apart, series repeating after approx 5-6 secs.
I am however not familiar with error beep codes on this board, and could not find any info on them
Could this be related to the fact that there are no L2 Cache chips on-board?
From the manual, there is not setting that disables L2 cache completely.
Got any advice?
Furthermore, is there any lucky member who has a working Shuttle HOT-409 ver. 2.2 reading this, thaat could kindly post some pictures of CMOS battery related circuitry? I will try to bodge repair together, reconstructing it by the pictures.