W27C010 no go

[The1]

Hi all, tried to use a Winbond EEPROM W27C010 for the VS V6 instead of the stock UV FM27C010 but it doesn't like it, fan comes on etc etc, the winbonds i have are 70ns is this not quick enough perhaps? what chips do you guys use?

[delcowizzid]

should be fine at 70ns are you burning a stock tune on or modded one if modded disable the checksum by setting program id to AA or it will do weird shit

[The1]

hi delco, it was a modded one i did, it worked fine though on the stock chip, i will try what you said though. thanks Mate.

[VL400]

VS will start and run with a dodgy checksum, you get a CEL though. I would be checking for a bad solder joint and also confirm that the EEPROM verifies against the bin you burnt.

[The1]

im thinking one the chips was bad, i only tried one then went back to the factory chip, however tonight i tried the same chip in my tech1 cartridge it didn't play ball either, then tried another and it was fine, even though the first chip read and erased fine.