I would like to purchase a new 1TB internal hard drive for a Late 2009 3.06 GHz 27 iMac.

I noticed here on ifixit in the parts store section that "[i]f you have a 21.5" or 27" iMac, you must replace your hard drive with a drive made by the same manufacturer as your current hard drive. These iMacs utilize the hard drive's internal temperature sensor to control fan speeds. In all other machines you can install a hard drive produced by any manufacturer."

OK. So I looked at my system profiler and it says the following under Serial-ATA:

''NVidia MCP79 AHCI:

Vendor: NVidia

Product: MCP79 AHCI

Speed: 3 Gigabit

Description: AHCI Version 1.20 Supported

ST31000528ASQ:

Capacity: 1 TB (1,000,204,886,016 bytes)

Model:ST31000528ASQ Revision: AP24

Serial Number: 5VP3M70J

Native Command Queuing: Yes

Queue Depth: 32

Removable Media: No

Detachable Drive: No

BSD Name: disk0

Rotational Rate: 7200

Partition Map Type: GPT (GUID Partition Table)

S.M.A.R.T. status: Verified

Volumes:

Macintosh HD:

Capacity: 999.86 GB (999,860,912,128 bytes)

Available: 660.35 GB (660,350,308,352 bytes)

Writable: Yes

File System: Journaled HFS+

BSD Name: disk0s2

Mount Point: /''

The available brands listed for a 1TB SATA internal drive here on ifixit are Hitachi, Western Digital, and Seagate. Are any of these compatible? Or do I need to find a vendor that sells NVidia drives?

Thanks!!!