If you can still insert them, then he definitely did what I outlined above. The optical drive is simply the drive on the see for CDs/DVDs.

He then partitioned it into two parts, which show on your desktop as two different drives. OK, sounds like he replaced the original hard drive in the iMac with the 2 TB you bought. Do you have a Time Machine or other backup of your data just in case? If you still cannot startup normally, we may have to reinstall the OS with the installer disc. If so, click on it to continue the startup process.

You should get an icon of the Macintosh HD in the center of the screen.Ĥ. After the second chime let go of those keys and immediately hold down the Option key alone.ģ. Press the power button and immediately hold Option-Command-P-R keys simultaneously until you hear the second startup chime.Ģ. Try the following with the bad right stick removed:ġ. Since the beeping issue is resolved (three beeps is always bad RAM), the reason your are getting the flashing ? folder is because the OS was corrupted with the failed startup attempts and it can't 'find' the System folder on startup. The right stick will have to be replaced. The left slot when facing the screen is the default slot for one stick of RAM. Yes, you can keep the 'good' stick on the left where it is.

Sounds like the stick on the right is the bad one.

Macbook pro 3 beeps when starting