3 Chimes at start up.

[mfka]

Mac Pro 2.1 (2007)
Clovertown 2 x 3 GHz Quad
8 GB 667 MHz

I have this problem for quite some time now but i was to
lazy to deal with it. Since i’m upgrading a lot of stuff in my MP
it is time to fix that to.

I talked with some guys who told me that it might be bad RAM,
however i ran some memory tests and everything went ok.
BTW i don’t get ret light on RAM plates which usually indicates
bad memory.

I even tried to relocate dongles and exclude some of them and
always with same result. I did not tried every combination though.

So my question is, should i just buy new memory or there is something
more i should check?

Thank you in advance,

mfka

 

[RKO]

Have you tried swapping the RAM out to try and eliminate any possibilities of a bad bank? Just a thought.

 

[UltraNEO*]

Sometimes it could be caused by a really simple problem.. did you try shuffling the modules about? (assuming you have more than 2 modules installed)

 

[mfka]

Have you tried swapping the RAM out to try and eliminate any possibilities of a bad bank? Just a thought.

I did some of them, not all combinations though.

Sometimes it could be caused by a really simple problem.. did you try shuffling the modules about? (assuming you have more than 2 modules installed)

Did that too.

This is current positions of the modules.

 

[Dr.Pants]

I would think that its bad RAM or one of your DIMM slots has died.

From Apple.

Anyways, try taking out everything but a pair and try booting. start adding pairs until you nail the one that's causing you problem. If the 2006 MacPro had daughterboards for the RAM, one of those could have died as well.

EDIT-Speedy internet! Sorry for redundancy.

 

[RKO]

I would continue to swap them out until I have eliminated any possibility of one bad module before attempting to look any further.

 

[mfka]

Ok, i’ll take them all now, i just hope it is not dead DIMM slot as Dr.Pants said it might be.

 

[UltraNEO*]

Ok, i’ll take them all now, i just hope it is not dead DIMM slot as Dr.Pants said it might be.

Personally I ain't tried it but what happens if you take out one of the memory daughter boards?

 

[mfka]

Never tried that.
I'm in the process of swapping the modules BTW.

P.S.

I just noticed something weird. When i swap the modules turn on
chimes one, and than with same setup boot in w7 still ok and after
booting from w7 back to SL get 3 chimes again.

 

[mfka]

Personally I ain't tried it but what happens if you take out one of the memory daughter boards?

Now i tried that, it boots normally.

 

[UltraNEO*]

Never tried that.
I'm in the process of swapping the modules BTW.

P.S.

I just noticed something weird. When i swap the modules turn on
chimes one, and than with same setup boot in w7 still ok and after
booting from w7 back to SL get 3 chimes again.

ok, a little lost. What's "w7" Windows 7 ??

 

[mfka]

Yes, it is windows 7.
I was unable to locate bad RAM yesterday because i discover to late
that it is not enough to restart just once until 3 chimes shows up.