I am having some issues with my Power mac G4 (Mirror Drive doors) 1.42 gHz dual processor Desktop.
First, I had a problem Burning DVD's. I get "Am error Occurred while burning the disc. This disc cannot be ussed" message.
I tried 4 different types of media including Apple discs to no avail, Same message.
I tried using Toast and received a buffer underrun Error message.
However I can Burn CD-r's with no problem.
I tried running The Apple Hardware test disc which gave me a "Invalid Memory access" error.
Thinking i might have bad memory I tried each chip ( I have 3 512 ddr sdram chips) and only one of them allowed me to successfully boot into the Apple hardware test. i assumed i had 2 bad RAM chips.
I purchased 2 new chips but had the same problem. The two I bought would give me an "Invalid Memory access" error when attempting to boot in the Apple hardware disc.
Now my computer boots up fine normally and even recognises the RAM under the "About this Mac". I tried "Tech Tool Pro" and "Rember" and the Memory passes fine.
So is the memory really bad, Is it something more serious? What's the deal?
-Phil
philransdell@verizon.net
First, I had a problem Burning DVD's. I get "Am error Occurred while burning the disc. This disc cannot be ussed" message.
I tried 4 different types of media including Apple discs to no avail, Same message.
I tried using Toast and received a buffer underrun Error message.
However I can Burn CD-r's with no problem.
I tried running The Apple Hardware test disc which gave me a "Invalid Memory access" error.
Thinking i might have bad memory I tried each chip ( I have 3 512 ddr sdram chips) and only one of them allowed me to successfully boot into the Apple hardware test. i assumed i had 2 bad RAM chips.
I purchased 2 new chips but had the same problem. The two I bought would give me an "Invalid Memory access" error when attempting to boot in the Apple hardware disc.
Now my computer boots up fine normally and even recognises the RAM under the "About this Mac". I tried "Tech Tool Pro" and "Rember" and the Memory passes fine.
So is the memory really bad, Is it something more serious? What's the deal?
-Phil
philransdell@verizon.net