First I would put the original RAM back in and then access this: [https://support.apple.com/en-us/HT201518|About EFI and SMC firmware updates for Intel-based Mac computers] You want to make sure your systems firmware is up to date.
The next issue is your system can only support 3 GB per Apple but 3rd parties have found 4 GB will work. So you might want to test with just one 2 GB module. The system does not need to have both slots filled to run.
You should stick with the correct frequency in this case: 667 MHz PC2-5300 DDR2 SDRAM (200-pin SO-DIMM). It needs to be unbuffered as well as nonparty RAM. So double check what you bought.
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Keep in mind your system can only go up to Lion (10.7.5) as it can't run 64bit services or apps (EFI is only 32bit). So you do need to her careful! As Apple is no longer offering security updates and Safari services may not work properly with newer web sites.
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Keep in mind your system can only go up to Lion (10.7.5) as it can't run 64bit services or apps (EFI is only 32bit). So you do need to be careful! As Apple is no longer offering security updates and Safari services may not work properly with newer web sites.
First I would put the original RAM back in and then access this: [https://support.apple.com/en-us/HT201518|About EFI and SMC firmware updates for Intel-based Mac computers] You want to make sure your systems firmware is up to date.
-
The next issue is your system can only support 3 GB per Apple but 3rd parties have found 4 GB will support it. So you might want to test with just one 2 GB module. The system does not need to have both slots filled to run.
+
The next issue is your system can only support 3 GB per Apple but 3rd parties have found 4 GB will work. So you might want to test with just one 2 GB module. The system does not need to have both slots filled to run.
You should stick with the correct frequency in this case: 667 MHz PC2-5300 DDR2 SDRAM (200-pin SO-DIMM). It needs to be unbuffered as well as nonparty RAM. So double check what you bought.
Keep in mind your system can only go up to Lion (10.7.5) as it can't run 64bit services or apps (EFI is only 32bit). So you do need to her careful! As Apple is no longer offering security updates and Safari services may not work properly with newer web sites.
First I would put the original RAM back in and then access this: [https://support.apple.com/en-us/HT201518|About EFI and SMC firmware updates for Intel-based Mac computers] You want to make sure your systems firmware is up to date.
-
The next issue is your system can only support 3 GB per Apple but 3rd parties have found 4 GB will support it.
+
The next issue is your system can only support 3 GB per Apple but 3rd parties have found 4 GB will support it. So you might want to test with just one 2 GB module. The system does not need to have both slots filled to run.
You should stick with the correct frequency in this case: 667 MHz PC2-5300 DDR2 SDRAM (200-pin SO-DIMM). It needs to be unbuffered as well as nonparty RAM. So double check what you bought.
Keep in mind your system can only go up to Lion (10.7.5) as it can't run 64bit services or apps (EFI is only 32bit). So you do need to her careful! As Apple is no longer offering security updates and Safari services may not work properly with newer web sites.
You have a few possible issues here. First I would put the original RAM back in and then access this: [https://support.apple.com/en-us/HT201518|About EFI and SMC firmware updates for Intel-based Mac computers] You want to make sure your systems firmware is up to date.
+
You have a few possible issues here:
+
+
First I would put the original RAM back in and then access this: [https://support.apple.com/en-us/HT201518|About EFI and SMC firmware updates for Intel-based Mac computers] You want to make sure your systems firmware is up to date.
The next issue is your system can only support 3 GB per Apple but 3rd parties have found 4 GB will support it.
You should stick with the correct frequency in this case: 667 MHz PC2-5300 DDR2 SDRAM (200-pin SO-DIMM). It needs to be unbuffered as well as nonparty RAM. So double check what you bought.
Keep in mind your system can only go up to Lion (10.7.5) as it can't run 64bit services or apps (EFI is only 32bit). So you do need to her careful! As Apple is no longer offering security updates and Safari services may not work properly with newer web sites.
You have a few possible issues here. First I would put the original RAM back in and then access this: [https://support.apple.com/en-us/HT201518|About EFI and SMC firmware updates for Intel-based Mac computers] You want to make sure your systems firmware is up to date.
The next issue is your system can only support 3 GB per Apple but 3rd parties have found 4 GB will support it.
You should stick with the correct frequency in this case: 667 MHz PC2-5300 DDR2 SDRAM (200-pin SO-DIMM). It needs to be unbuffered as well as nonparty RAM. So double check what you bought.
Keep in mind your system can only go up to Lion (10.7.5) as it can't run 64bit services or apps (EFI is only 32bit). So you do need to her careful! As Apple is no longer offering security updates and Safari services may not work properly with newer web sites.