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Originally Posted by PeteAU
Which last 1mb comment? It'll work fine as 512KB in almost all situations.
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Yeah, just working on it as 512kb at the moment. I meant in relation to having 1mb chip expansion on an A500 Plus
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Post a pic, maybe we can spot the error. How did you remove the connector? That sounds really hard/impossible/dangerous.
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I mean the connector on the expansion PCB not the A500, was easy to remove and put another one was just the first 20 pins. Think it was pin 20 I ended up connecting up to ground, if its nothing obvious (jumpers etc.) then I suspect I damaged the RAM with that mistake.
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Does your mobo have JP2 changed to 1MB chip? If so, you need to cut the ENABLE jumper on the memory board. This jumper really means: "enable expansion RAM at $C0", but for CHIP, you don't want that.
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I'm using it on an A500 Plus, so expecting 1.5mb chip ram.
Thanks.