did you reformat the hard drive?

hm.. strange, you seem to have done everything right..

you should try to format that hdd in a different PS3 to see if that shows the same results

i figure you had to format the hard drive to the system. i'll go get some other PS3 owners.

U did download the frimware on a thumbstick usb.you have the frimware on the thumbstick to format the ps3.its not like the old phat ps3 u put the frist in and it doesit for u .hope this helps

I think this actually changed with a firmware version. Guessing they changed it once the PS3 got hacked.

I remember I had to do this in my phat as my firmware was too new. 

ok. i trie to get other PS3 owners in herebut the ones i went to have yet to show. well you did all i could think of. 

Is it a 2.5 inch Sata internal?

The ps3 should format the drive for u.i never had any trouble puting in a bigger hard drives in my 2 ps3s

no if you just put that HDD into the slim to format it that won't do anything to your accounts (and the accounts are bound to your PS3s unque IDs, those are hardcoded into the PS3s chips and not on the hdd)

usually it will just format the thing (meaning everthing thats on the 1TB right now will be wiped) and think its a new PS3 when it's done, just power it off after that and put the real HDD of the slim in and it will be like nothing happend with that PS3

let me know iff it works.