Crosshair IV formula, Vishera support

[DaemonCantor]

Well you have come across something that is Gigabyte only...because if yo look at a lot of AM2/2+ boards they will accept all of the AM3/3+ CPU's example my wife has an HP Pavilion system with a Pegatron MoBo that is actually an Asus MoBo. It's an AM2 Socket(not AM2+) and HP installed from the factory an Athlon II x4 645..Not the greatest CPU but all my wife wants or needs. It will also take the AMD Phenom II X4 965 in the Documentation on the Machine. Now both of these CPU's are AM3/3+ so if it was different then how could they install them on a AM2 Mother Board....I can see other little chip Differences like in the Hyper Transport AM2 is 2.0 and AM3 is 3.0 but that doesn't change the Mechanical Part ie: the Pin Count and Placement same way as the Memory Controller... and truthfully there it's Timings and Voltages that re different...if they would have allowed the Memory Socket to stay the same you would be able to use ether DDR2 or DDR3 on your system as you wished...AMD is full of Backwards Compatibility ever since 2004 when they went thru 3 different Socket Versions in 6 months and everyone on the Planet went knutz on them!

[suprgosu]

Well you have come across something that is Gigabyte only...because if yo look at a lot of AM2/2+ boards they will accept all of the AM3/3+ CPU's example my wife has an HP Pavilion system with a Pegatron MoBo that is actually an Asus MoBo. It's an AM2 Socket(not AM2+) and HP installed from the factory an Athlon II x4 645..Not the greatest CPU but all my wife wants or needs. It will also take the AMD Phenom II X4 965 in the Documentation on the Machine. Now both of these CPU's are AM3/3+ so if it was different then how could they install them on a AM2 Mother Board....I can see other little chip Differences like in the Hyper Transport AM2 is 2.0 and AM3 is 3.0 but that doesn't change the Mechanical Part ie: the Pin Count and Placement same way as the Memory Controller... and truthfully there it's Timings and Voltages that re different...if they would have allowed the Memory Socket to stay the same you would be able to use ether DDR2 or DDR3 on your system as you wished...AMD is full of Backwards Compatibility ever since 2004 when they went thru 3 different Socket Versions in 6 months and everyone on the Planet went knutz on them!

Yes this works, problems arise if you try to go the other way, putting an AM2 cpu in an AM3 socket. There was even a wikipedia ref on it under compatibility: http://en.wikipedia.org/wiki/Socket_AM3

[DaemonCantor]

Yes because the First Gen doesn't have a DDR3 controller inside but the Second Generation all they really did was add the DDR3 Controller.