I have a Macbook pro Core 2 Duo. The 2nd generation Macbook pro. I am trying to install a 640GB Western Digital Scorpio Blue hard drive. I have formatted the new drive to Mac OS Extended (Journaled) with the GUID table though an external USB enclosure. I have installed OSX from the CD's onto this new drive and can boot from it externally. When I install it internally and try to boot I get a gray screen with a stop sign (circle with a line through it). If I boot from the install CD and use disk utility the comupter sees the drive as 4.6TB rather than 640GB and can't format it. I think it gives an "input/output error".
Why would this drive work in an external enclosure but not internally?
-I can boot from the drive in the external enclosure and could install OSX on to it so the drive is good and the formatting is correct.
-My original HDD works in the computer so the SATA connection is good.
I am confused. Any help that can be offered would be appreciated.
Why would this drive work in an external enclosure but not internally?
-I can boot from the drive in the external enclosure and could install OSX on to it so the drive is good and the formatting is correct.
-My original HDD works in the computer so the SATA connection is good.
I am confused. Any help that can be offered would be appreciated.