17 inch imac blue screen

if u suspect it's the ram stick then pull it out & see what happens.


Before I put together a custom PC I built for my parents back in 2006, they were using a Cr@ppy Compaq presario 5000 series which was only capable of running 256MB SDRAM. When ever I tried to upgrade by adding more, I couldn't get through a boot-up and when it did, it could go no longer than 10 minutes without freezing. When I pulled out the Ram t would start working again.

Honestly, it seems you may have either a HD or Ram problem. Just for curiosity, have you monitored your fans speeds and HD temp in the past??? Did you properly glue back the thermal sensor to the HD??? I used Elmer's Rubber cement on mine which similar to what Apple used. It could be that excessive heat may have slowly toasted u're drive over time.

Maybe there was static contact when you opened your imac or maybe that black protective foil is making contact onto the logic board. Just throwing all the possibilities as I've done a HD replacement myself on my 17" Late 2006 iMac & I know their messy inside.

I agree it sounds like either the ram is bad or it's not in good or something I used to have the same model of imac and I ran into the same issue however mine turned out to be the hard drive.
but i've heard about bad memory doing the same thing
good luck

Check out this Apple Article: http://support.apple.com/kb/ts1411