Constant Chrashes

[eyeline]

Just wondering if anyones Mac keeps chrashing requesting that you restart your computer, been told it has something to do with Kernels,
Any ideas?

Thanks eyeline

 

[danielb]

Are there any error messages?

 

[dtravis7]

That is a Kernel Panic.

Which Mac do you have? Model? What version of OSX is on it? How long you owned it? When did the Kernel Panic's start?

 

[Alexis]

Yes, please give us at least some information so we can try and help!!!

 

[eyeline]

Thanks.
Running a 2.0GHz, 2 x 2GHzDual-Core Intel Mac Pro with 1 GB 667 MHz DDR FB-DIMM ( Apple Memory ).Radeon X1900 Graphics card on a 23inch Apple Display. Mac OS X 10.4.10 (8R2218).Darwin 8.10.1
Ive had the machine for about 24 months. Its been giving me trouble for 2 months. I play Battlefield 1942 a lot. Its been mentioned to me about a Kernel issue but not sure how to attack it. Ive run the latest Tech Tools4.5.2 and I'm waiting for my copy of Cocktail to give that a whirl.Oh. The screen freezes and a grey screen fills the screen from top to bottom and a message "You have to restart your computer do this by hold the..."
Thanks in advance for any ideas.
eyeline

 

[dtravis7]

A lot of time Kernel Panic's are hardware messing up and even more times RAM. Do you have any other FB-Dimm's you can sub and see if the KP's go away? Even though it's stock ram, it's been 24 months, who knows. My iMac iSight G5 worked great for 8-9 months then started getting KP's, Lockups and Data corruption and it was a stick of Kingston that went bad after 8 months. It was fine till that time and always passed the Apple Hardware test.

You might want to run that test. Put in the DVD that came with your Mac Pro and hold down D I believe after the chime and run the Hardware test. Run the Full test and see if it finds any bad RAM or any other bad hardware.

 

[eyeline]

Thanks

That would be great!
The memory is 2 x 512 MB DDR2 FB-DIMM
667MHz
eyeline

 

[dtravis7]

It was the D. I have never had to run it on my Intel Mac. My close friend has a Mac Pro. Had it 1 year now and not a problem with KP's. Let me know what the Hardware Test shows.

 

[eyeline]

Thanks Again

I'll Let you Know

eyeline

 

[eyeline]

Tried 3 times wouldnt let me load of the disc
?

 

[dtravis7]

Tried 3 times wouldnt let me load of the disc
?

Did you hold down the D key right at the startup chime? Also do try the Option key after the chime, but on the Intels I tried it was the D key.

I have to go to sleep but will be back tomorrow sometime.

 

[eyeline]

Keeped trying today and succeded, Ran the Hardware test of the startup disc and the test said " no trouble found". But computer still crashes.
eyeline ?

 

[eyeline]

Thanks Again

Oh well, thanks for trying
eyeline

 

[MacHeadCase]

When did the kernel panics start? Usually kernel panics are due to RAM going bad. Is the RAM all factory installed or did you add any yourself?

 

[dtravis7]

When did the kernel panics start? Usually kernel panics are due to RAM going bad. Is the RAM all factory installed or did you add any yourself?

To add to that, even though the Apple Hardware Test showed no issues, I have seen some flaky RAM sneak by it and still be the problem. That is why I had asked earlier if you had any other RAM you could try in the machine.

 

[MacHeadCase]

Exactly, trav! If the problem with the RAM is intermittent, the Hardware Test won't pick it up unless it happens during the test: but then again, the test would probably not complete itself!

If eyeline added any RAM, the idea would be to pull it out for a while and see if the kernel panics persist or not.

 

[eyeline]

Sorry bout the delay, but a truck took out the cable on the street. Without Internet since the night of the 30th.
And no I havent got any Ram to try. Crrent Ram is all Apple.
I'm still waiting for a version of Cocktail, witch should alow me to delete the Kerenel Cache?
Short of buying new Ram. not sure what else there is to do.
Thanks
eyeline

 

[eyeline]

Tried REMBER

I used a program called REMBER which gave me this result:

Memtest version 4.2 (64-bit)
Copyright (C) 2004 Charles Cazabon
Copyright (C) 2004, 2005, 2006 Tony Scaminaci (Macintosh ports)
Licensed under the GNU General Public License version 2 only

Mac OS X 10.4.10 (8R2218) running in multiuser mode
Memory Page Size: 4096
System has 4 Intel processor(s) with SSE
Requested memory: 742MB (778309632 bytes)
Available memory: 742MB (778309632 bytes)
Allocated memory: 742MB (778309632 bytes) at local address 0x0000000104008000
Attempting memory lock... locked successfully
Partitioning memory into 2 comparison buffers...
Buffer A: 371MB (389154816 bytes) starts at local address 0x0000000104008000
Buffer B: 371MB (389154816 bytes) starts at local address 0x000000011b328800

Running 2 test sequences... (CTRL-C to quit)

Test sequence 1 of 2:

Running tests on full 742MB region...
Stuck Address : setting 1 of 16setting 1 of 16ok
Running comparison tests using 371MB buffers...
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : setting 1 of 64 Block Sequential : setting 1 of 256ok
Checkerboard : setting 1 of 64 Bit Spread : setting 1 of 128ok
Bit Flip : setting 1 of 512ok
Walking Ones : setting 1 of 128 Walking Zeroes : setting 1 of 64
Test sequence 2 of 2:

Running tests on full 742MB region...
Stuck Address : setting 1 of 16ok
Linear PRN : setting 1 of 16ok
Running comparison tests using 371MB buffers...
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : Block Sequential : setting 1 of 256ok
Checkerboard : setting 1 of 64testing 1 of 64setting 2 of 64testing 2 of 64setting 3 of 64 Bit Spread : setting 1 of 128 Bit Flip : setting 1 of 512ok
Walking Ones : setting 1 of 128ok
Walking Zeroes : setting 1 of 64testing 1 of 64ok

All tests passed! Execution time: 1914 seconds.
Does this make sence to anyone?
Thanks
eyeline