The most recent info on this card is about 10 years old.
The story is that I had an old dying PC with a vast accumulation of dust, causing sparks to fly.
I transferred the disk & wireless card across to a "known good PC" - and "amazingly" it worked.
This lasted for about a week.
OS is Xubuntu 12.04 and recommended updates of an unknown nature were applied from repositories & PPA's (not by me
Soon after, wireless on the ancient Netgear wg311t PCI card failed.
I've tried moving it to a different slot - still does not work.
I've tried booting up from a Xubuntu 14.04.2 DVD - still does not work.
The two slots give slightly different results to the command
[ 63.714417] ath5k 0000:05:06.0: registered as 'phy0'
[ 63.733142] ath5k: phy0: failed to wakeup the MAC Chip
[ 63.733482] ath5k: probe of 0000:05:06.0 failed with error -5
[ 13.594859] ath5k 0000:05:08.0: PCI INT A -> Link[APC3] -> GSI 18 (level, low) -> IRQ 18
[ 13.594943] ath5k 0000:05:08.0: registered as 'phy0'
[ 13.606136] ath5k phy0: failed to wakeup the MAC Chip
[ 13.606531] ath5k 0000:05:08.0: PCI INT A disabled
[ 13.606768] ath5k: probe of 0000:05:08.0 failed with error -5
I'm prepared to buy a replacement card - so long as it is cheap!