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View Full Version : Singling out faulty rom chips.



darknezz19
10-28-2014, 02:44 PM
Anyone have any ideas for singling out faulty rom chips. Maybe a corrupter on one rom at a time and then loading into mame to see if the results are similar?

Opethian
10-28-2014, 03:41 PM
wtf is a corrupter? lol

HMG
10-28-2014, 03:57 PM
A ROM corrupting tool is just that, it wrecks the data in a ROM. It's for experiments and hacking.

I suppose you could try doing that, but it's not reliable. Most people will tell you to use a logic probe to look for stuck address/data lines, or otherwise oddly acting ROM chips.

bustedstr8
10-29-2014, 02:52 PM
wtf is a corrupter? lol


http://i302.photobucket.com/albums/nn112/Admiral_Stalfos19/Zergz/ZergCorruptor.jpg

Opethian
10-29-2014, 03:06 PM
this thread needs additional pylons

GadgetUK
10-29-2014, 04:40 PM
LMFAO!

http://i302.photobucket.com/albums/nn112/Admiral_Stalfos19/Zergz/ZergCorruptor.jpg

channelmaniac
11-02-2014, 04:44 PM
I take my logic probe tip and use it to short 2 lines of the ROMs momentarily to see what changes on the screen. That allows you to ID background, player sprites, and overlay (text/scores/health) ROMs quickly.

Oh, and if you hit audio samples they will sound like shit and finding program ROMs will cause the game to lock up or reboot. :)