TransWarp GS seems dead

[ToasterKing <ToasterKing@SPLATmindless.com (Delete SPLAT to reply)>]

Well, it seems my TransWarp GS card has died.  I power up my IIGS ROM 3
and get nothing but a black checkered screen.  Pressing Command-Reset or
Command-Control-Reset yields nothing.  I've had my TransWarp GS running
with a 40 MHz oscillator (for 10 MHz processor speed) and one of the
Sanyo-redesigned 14 MHz 65c816 chips.  The static-RAMs in the cache and
the ROM chip are the original.  The GS runs fine with the original 65c816
DIP chip in the CPU slot instead of the TransWarp GS card.  I've already
tried reseating all the ICs on the TransWarp GS card and have tried
swapping oscillators and PLCC 65c816 chip with their original
counterparts, and still no luck.  Also tried cleaning connectors.  Before
the card stopped working altogether, sometimes when I tried to reboot the
computer, the border and background would stay black and it would not
finish resetting, and I would have to power the machine off and back on. 
I figured it was just being quirky due to the static-RAMs being
overclocked, but returning to the TWGS's original clock speed did not
help matters.

Any ideas besides replacing the entire card?

Thanks!

--
Please send a copy of your reply via e-mail, if it's not too much
trouble.  :>
--
                           -=ToasterKing=-
                     ToasterKing@SPLATmindless.com
  >>> Please delete the word "SPLAT" from my email address to reply. <<<
            This message was posted on an overclocked Macintosh
             Performa 575 with Nuntius 2.0.4, if anyone cares.