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chrisf
Joined: 28 Aug 2012 Posts: 8
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Posted: Tue Aug 28, 2012 8:38 pm Post subject: Super wild card dx 32mb problems |
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hi
i bought a second hand super wild card with these problems , can anyone help ?
i get maybe 1 in 10 chance of actually getting the wild card to boot , just black screen alot of the time
doing the in built hardware test shows 32mb ram , but when it gets to the end of the test , it says error 0 and the sram shows 0
(i have the battery removed)
if i try and run the built in game or demo , it never loads
if i try and run a rom from floppy it says loading and stops straight away
sending a rom from pc results in the file transferring ok then on the wild card i just get a black screen
also if i put a cart in the top it doesn't recognise it , comes up with a scrambled name and the cart size changes if i go in and out of the cart info menu , shows the same odd behaviour if no cart is in also
things i have tried , removing reseating ram , check for bad traces etc
im thinking the ram is faulty ? |
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madman
Joined: 07 Jul 2006 Posts: 598
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Posted: Wed Aug 29, 2012 1:35 am Post subject: |
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Sounds like there could be several things going on. I would start with the most basic thing first and clean the cart edge connector. |
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chrisf
Joined: 28 Aug 2012 Posts: 8
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Posted: Wed Aug 29, 2012 9:32 am Post subject: |
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thanks for your response
all connections have been cleaned with isopropyl
i have also replaced all caps with new ones
re flowed solder on ram header pins on main board
checked continuity on those pins further down the board etc , all ok
im hoping its just a ram problem
is there anyone in the uk that has a 32mb ram board for sale or one just to test in this unit ? |
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