Lynette,

I used to have this problem on occasion, and it was fixed by resetting the CUDA chip. Pretty easy to do. It's a tiny button on the motherboard that you hold down for 10 seconds or so to reset. Here are the detailed instructions: http://support.apple.com/kb/ht1939

David Fierstein

On Jan 27, 2014, at 9:28 AM, Lynette Cook <[log in to unmask]> wrote:

> Hi Jim,
> 
> Ah, great suggestion! PRAM battery; yes, that definitely is worth a try. Especially as my Google search turns up a highly rated Mac repair place near Union Square in San Francisco - yikes! (No parking, traffic. . . plus, as you say, the outlay of money to have it looked at.)
> 
> I did just find a good YouTube video. It looks very easy. I'll go get a battery and see how it goes. Crossing my fingers.
> 
> Lynette
> 
> On Jan 27, 2014, at 9:06 AM, James A Perkins wrote:
> 
>> Hi Lynette,
>> 
>> This is a shot in the dark, but I remember having similar problems on some older Macs.
>> 
>> You might need to replace the PRAM battery, which is located on the motherboard. The PRAM battery provides power to the Mac's built-in clock and other operations while the machine is off. When the battery is dead, you'll experience problems like the computer failing to boot up.
>> 
>> It's really easy to replace the battery, especially on those Quicksilver machines where the whole motherboard swings open. You need to find a 3.6 volt lithium "1/2 AA" battery. It's the same diameter as a regular AA, but half the length. Open the computer case and the battery will be easily accesible on the "door" that swings open. Just pop out the old one and put in the new one.
>> 
>> Here's some info from Apple's website:
>> http://support.apple.com/kb/TA25572?viewlocale=en_US
>> 
>> I also found a YouTube video that shows how to do it (search for "Quicksilver PRAM battery"). They use a special nylon tool to remove the battery, but you really don't need anything fancy - just your fingers. The only important precaution is to make sure you unplug the computer first and discharge any static electricity on your hands before touching the motherboard. Just touching the power supply should do the trick.
>> 
>> This might not work but it's cheaper and easier than bringing it to a repair shop.
>> 
>> Jim
>> 
>> 
>> Sent from my iPad
>> 
>> On Jan 27, 2014, at 10:56 AM, "Lynette Cook" <[log in to unmask]> wrote:
>> 
>>> I have an old Quicksilver tower (the version between the G4 and Mac Pro) that won't boot up. It was fine before I left on vacation over the holidays. I shut it down before leaving in case there was a storm while away (there wasn't - it's been bone dry out here in CA). I just tried to turn it on to access some old data and I get nothing except a glowing light on the power button when I press it. Any ideas what I should do other than call a Mac repair person?
>>> 
>>> Lynette
>>> --
>>> Ms. Lynette R. Cook, Artist/Illustrator
>>> [log in to unmask]
>>> 
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