startup delay and wake problems

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Everything worked great until I closed the lid on my computer one day. When I opened it back up nothing happened, so I forced Power Off, by pressing the power button for 10 seconds. I restarted and about 9 minutes later Snow Leopard Loaded but I was unable to do anything but move the mouse around. After about ten minutes of idle (screensaver came on then went back to my desktop after about 10 min), the computer started to function normally. Once again when it went to sleep I had no way to wake it back up and repeated the process described above.

So, I did some reading one person says its RAM, so I put the original 2gb of RAM back in, no fix.

Someone else says its the hard drive, swapped my Seagate 500gb drive for the original 250gb drive, no fix.

Someone else said reinstall, so I wrote zeros to ensure there was nothing on the drive (original 250gb as well as my other 500gb), reinstalled off the original install cd's, which took an abnormal about of time (about 4.5 hrs each time). I still have no fix, for the 10-15 minute startup and no recovery on wake.

Other tasks I have performed multiple times throughout this process:
Reset of computer, PRAM, NVRAM
Verify both disk and disk permissions (both checked OK every time)
Hardware tests which showed no problems

I did nothing out of the ordinary, no new software, updates, hardware, just a typical day of listening to music and surfing the web the day all my problems started. Can anyone help me out, please.
 

bobtomay

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Your Mac's Specs
15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
What you're describing is usually the hard drive. Since you've ruled that out, I'd have to think it could be the disk controller. Best advice I can give (given the details of all you've done so far) is take it to Apple.
 

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