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Hello Everyone, Sorry for my absence from this site. I have been busy with work and have not had a chance to work on my TAM for a very long time. In fact I have decided to put it up for sale in the hopes that it will go to a good home. If you are interested you can find the auction of eBay by...

Hi Foxx, Unfortunately I was never able to solve the problem. I tried everything imaginable: reset PRAM, reset CUDA, replaced the RAM with the original one, installed original HDD, tried Mac OS 8.6, 9.1, 9.2.2, installed  (and removed) various versions of the Sonnet drivers, let the computer...

Yes the PRAM battery was recently replaced with a fresh new one. The one I replaced it with is this one: https://www.amazon.com/dp/B000PCCBMS/ref=cm_sw_r_cp_apip_USbAoZYtfN3AK So the battery shouldn’t be the problem. At least I would hope.

Thank you for the link. I tried downloading versions before 2.0, however the TAM does not recognize the file. I download through my PC, and therefore lose the creator of the file. Is there another location where I can download the files in .sit format? I tried to install the Sonnet under OS 8.6...

Hello and thanks for your suggestion. Unfortunately I’m not able to find any information regarding a TAM firmware update/upgrade online.

That’s a good suggestion about having the card tested by another member. I am located in Burlingame, California, zip code 94010. Just south of San Francisco. If anyone is near me and willing to meet let me know, otherwise I can send the card by mail to have tested. The TAM works flawlessly...

I tried doing it but it will not chime three times. I believe it chimes once (like during normal boot) and I just get the black screen and nothing happens.

Hi JB, Thank you for your suggestions. I tried exactly as you said - cleaned the contacts of the Sonnet card (they were pretty dirty actually), unplugged the TAM, disconnected PRAM battery, pressed the CUDA switch for 10 seconds, removed one of the two RAM sticks, and left it unplugged for more...

Hello Everyone, This is my first post here, however I have used this excellent forum to gather information on vintage Macs and Newtons for quite some time now A few months ago I acquired an Apple Twentieth Anniversary Mac (TAM) and have been having fun fiddling with it and upgrading it. I love...