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uMac
Jun 28, 2007, 05:33 PM
I did a search and didn't find a similar,

I've installed some more ram into my Mac Pro (Matching Pairs, etc)
And when I turn it on the computer can't see them :eek:
I moved my ram around to see if it was the riser or the slot, but to no avail.
Does this mean the ram is shot, can I solve this problem, or what?

Thanks,
uMac


Peace
Jun 28, 2007, 05:35 PM
Please be more specific.

What brand RAM did you buy?

Whats your stock config?

Where are the different sticks located?
uMac
Jun 28, 2007, 05:39 PM
I got a pair of 512MB
Before the computer was a stock 2.0GHz (so only the processor was changed)
Primary sticks have are located in Tray 1 - Slots 1 & 2
New sticks are located in Tray 2 - Slots 1 & 2

I move the ram around a bit so its not the riser.

Oh, and I'm a techie kind of guy (PC) so I'm used to doing this sort of thing with computers.

Please be more specific.

What brand RAM did you buy?

Whats your stock config?

Where are the different sticks located?
Peace
Jun 28, 2007, 05:41 PM
What brand did you buy? The config you have now is the way it's supposed to be.

Matched pairs.
rdowns
Jun 28, 2007, 05:42 PM
Try swapping the sticks out into the other slots.
uMac
Jun 28, 2007, 05:44 PM
What brand did you buy? The config you have now is the way it's supposed to be.

Matched pairs.

Nanya

Query - I thinking if its not the ram it may be the bios, how does one check the bios on a mac pro to see if its configured correctly?
uMac
Jun 28, 2007, 05:45 PM
Try swapping the sticks out into the other slots.

Done, didn't help.
Peace
Jun 28, 2007, 05:48 PM
I'd return the RAM and get either Crucial or even from

http://www.datamemorysystems.com/

I've bought memory from them for my Mac Pro and the sticks are fine.Run a little warm but thats expected.
uMac
Jun 28, 2007, 05:50 PM
I'd return the RAM and get either Crucial or even from

http://www.datamemorysystems.com/

I've bought memory from them for my Mac Pro and the sticks are fine.Run a little warm but thats expected.

Yes, return the ram and get from a different spot is a solution.
However I would prefer this pair worked, as it would take less hassle and time then going and getting another 2 dimms.

Plus I would like to make sure that it is the ram and not the computer that is the problem.
Peace
Jun 28, 2007, 05:52 PM
Boot from your install disk and run the hardware test.
yellow
Jun 28, 2007, 05:57 PM
Query - I thinking if its not the ram it may be the bios, how does one check the bios on a mac pro to see if its configured correctly?

Macs don't BIOS. They are EFI machines.

Place the new RAM into the known good slots. Does it work? Then it's slots. Does it not work? Then it's faulty RAM.

Macs are notoriously picky about RAM.
uMac
Jun 28, 2007, 06:00 PM
Boot from your install disk and run the hardware test.

I will try this, if this doesn't work i'll try other suggestions.
I've contacted the seller, and if I can't get the ram to work they will take it back and give me a refund.
uMac
Jun 28, 2007, 06:10 PM
I will try this, if this doesn't work i'll try other suggestions.
I've contacted the seller, and if I can't get the ram to work they will take it back and give me a refund.

Ok...
How do I run the 'hardware test' off the install CD, I see a test for the Diskdrive, but the an overal hardware test.
Peace
Jun 28, 2007, 06:13 PM
Hold down the "D" key while starting up with the install DVD in the drive.
uMac
Jun 28, 2007, 06:26 PM
Hold down the "D" key while starting up with the install DVD in the drive.

Ok, done - No errors where found, I checked the profile and it did show the memory cards, but at 0MB each.

Restarted the computer, cards still not showing up.

Suggestions?
Peace
Jun 28, 2007, 06:30 PM
Did you buy the Mac new from Apple? or from a private party.

It's starting to sound like either bad memory or a riser not put in properly or even a bad riser.
CanadaRAM
Jun 28, 2007, 06:34 PM
"Nanya" is not sufficient information.

Where did you buy them from?
Are they Mac-compatible FB-DIMMs with heatsinks?
uMac
Jun 28, 2007, 06:38 PM
Did you buy the Mac new from Apple? or from a private party.

It's starting to sound like either bad memory or a riser not put in properly or even a bad riser.
Its a new (1.5 week old) Mac from Apple

The riser is fine - Right now Riser A is Riser B and New Ram is in old ram location (So Riser B is in Riser A slot with Orginal RAM, Riser A is in Riser B slot with New Ram). Trust me, I did all the combinations. If it wasn't for the different brand stickers I wouldn't be able to tell them apart.

Should I try to mix the pairs up (they are all 512 MB) or is that asking for trouble?
xfusejc
Jun 28, 2007, 06:47 PM
I'd suggest swapping the new ones with the ones that came originally with the computer. If the new ones still don't work in the place where the original ones were working, then the RAM is probably shot.
uMac
Jun 28, 2007, 06:49 PM
I'd suggest swapping the new ones with the ones that came originally with the computer. If the new ones still don't work in the place where the original ones were working, then the RAM is probably shot.

Then the ram is probably shot (as I did swap them).