New SSD and RAM Installed to iMac. Having Issues. HELP!

[soamz]

Hi, I have a 2010 iMac. It was running too slow, so I got a new SSD and I had 2 16GB RAM Kit from Crucial from last year, so I used that.

This is the one, I had. (see attached)

Installed the 240GB Crucial SSD.
And Installed 8 ,8, 8, 8 to all 4 slots of the RAM.


And I had no yosemite file, so I asked the apple engineer to copy the yosemite from his drive to this new SSD iMac and he did it.
Then I was able to switch on the iMac.

But when I switch on the system, it shows 64GB. Instead of 8,8,8,8 it shows 8,8,24,24 . (see attached)
How is that happening ?

 

[soamz]

Now the problem is, as soon as the iMac is on and I do anything, the iMac restarts with error screen after 1-2 minutes.

See attached errors what I see.

 

[soamz]

so, now the question is, are the RAMs wrong, or incompatible with the iMac or is the OS bad ?
Shall I take out the RAMs and try or shall I reinstall Yosemite fresh ?

 

[Thessman]

so, now the question is, are the RAMs wrong, or incompatible with the iMac or is the OS bad ?
Shall I take out the RAMs and try or shall I reinstall Yosemite fresh ?

You can start by taking off the 2x24GB sticks. Then after you verify that the OS is ok you can try swapping the sticks to see if they are bad.

 

[soamz]

So, remove the 8,8,8,8 and put back the old 2,2,2,2 RAM and try first ?

 

[h9826790]

Try a PRAM reset (ONLY if you didn't enable TRIM for your 3rd party SSD by any means)

 

[soamz]

How is that done ?

 

[h9826790]

1) Choose Apple menu > Shut Down.

2) Locate the following keys on the keyboard: Option, Command (⌘), P, and R. You will need to hold these keys down simultaneously in step 4.

3) Turn on your Mac.

4) Immediately press and hold the Option-Command-P-R keys. You must press this key combination before the gray screen appears.

5) Continue holding the keys down until your Mac restarts, and you hear the startup sound for the 4th time.

Release the keys, let your mac start up normally.

 

[soamz]

Done PRAM reset and switched on.

Same issue, it restarted after 2 mins.

 

[Fishrrman]

Take the new RAM -out-, put the old RAM in by itself.

Does this stabilize the machine?

 

[tyche]

Obviously the first issue is to get rid of the "24 gb" dimms. It's very likely the OS is trying to write to address space that doesn't exist and blowing up.

So put your old memory back to make sure the iMac is running ok and the ssd is working and OS is happy. Then I'd pull all the 2gb and put 2 x 8gb and verify the OS sees 16gb total.

 

[soamz]

Okay, I think now its good.

Now I have to format my SSD, keeping the Yosemite intact.
How do I do that ?