08-16-2009 01:41 PM
I have an iMac intel core 2 duo 2.8 GHz, 800 MHz. A wile after upgrading the memory to 4 GB crucial memory ( two sticks of 2GB ea.) Safari froze. When I restarted the computer a gray screen came up and the computer started to make a loud repetitive beep in sets of 3. ( 3 beeps, pause 3 beeps etc..)
I read some were that memory is the cause of that beeping pattern and switch the sticks back to the original memory the iMac came with and the computer seems to work fine. I switch back to the Crucial memory and the blank screen and beeping noise comes back. (the computer won't start up)
Is it possible that the memory went bad? I bought them not that long ago... the Crucial memory sticks I have are :
2GB 200PIN DDR2 SODIMM 256MX64PC2-5300
Thanks in advance for any help!!
08-17-2009 12:05 AM
It is very possible that the memory could be bad. Especially since you restored the original memory and the system seemed fine. Can you post the complete Crucial memory part# so that it can be cross referenced to your system? What you can do next is test your memory using MemTest86+. Download the program to floppy and boot from it. You will need to have the Crucial memory installed, but only one stick first. If it passes, then try the other (all by itself). If it passes, test both together. If one of them fails, make note of which slot it fails in. Let us know your results.
08-17-2009 06:03 PM
The part number for both sticks is : CT25664AC667 it has another number under this one not sure if this help, the number is : 649528733030.
The full description of the stick is a follow: 2GB 200Pin DDR2 SODIMM 256MX64PC2-5300
As for testing the memory, iMac's don't have floppy drives and the computer won't boot up once I install the Crusial memory. all it does is a gray screen will display with a sequence of beeping noise, that's all it does.
Can I get the memory replaced?
08-18-2009 02:55 AM
It sounds to me that you have the wrong speed for this model and would need PC2-6400 (800MHz) RAM but I don't think the memory you have would've worked in the first place and from what you are saying it has been working ok until recently? Is that right?
Could you check what speed your original RAM is? Either from the module label or go into System Profiler. Once you confirm this we can advise the next steps.
09-22-2009 11:08 AM
I also seem to be having the same problem with this memory. I have an 2.4Ghz Intel Core 2 Duo 20" iMac and upgraded with the same memory as Luis. The serial numbers match and I'm having very similar problems.
At first it works but upon restarting I get the beeping pattern and when reverting to the original memory it's fine. I received the memory a few days ago and have the problem occur 3 times since. Was this ever resolved?