A500+ trap door memory expansion problem

Bastich

Active member
Joined
Apr 13, 2011
Posts
1,930
Country
United Kingdom
Region
Staffordshire
Hi all :)

I recently got an A500+ which is labeled rev8a.1. My other A500+ which I fixed also has a sticker that says this however this one has it printed on the board by where it says Rock lobster (my other does not). The main board is also dark green instead of a light green colour. The board looks in perfect condition as the battery had not leaked. Unfortunately 1 of the 4 Sims on my Marpet 1MB trapdoor expansion does not work. It is not the expansion card or the Sims as they work perfectly in my other A500+. If I leave all 4 Sims in I get a flashing power light and the screen flashes between white and grey. If I remove the first Sim them it boots to the Kickstarter screen as normal. Does anyone have any advice on what to check for for this problem?
 
Turns out it was some failed SIMMs. Which means my nice clean A500+ board is 100%

Does anyone know what the difference is between an 8A and an 8A.1 board?
 
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