Where i download amd phenom x4 processor driver

go to Asus web site and get the pecs for the board. it should tell you what processors will work with the board.

Simply acquire a copy of Windows XP 64bit and install. You should then update all drivers needed with 64 bit drivers.

you don't need drivers for a cpu...

Narra3 supports X2 up to 5600+ up to 89 watt Socket AM2 Processor (currently AMD Athlon™ X2 6000+) AND X4 up to 9600+ up to 95 watt Socket AM2+ Processor (currently AMD Phenom™ X4 9600+)

you cannot use m4a78t-e to amd phenom x4 9650 because it does not support am2+ socket, it only support am3,phenom II,sempron 100, and athlon II processor.

Yes your motherboard supports AMD Phenom X4 9650 Quad. However you need to make sure your BIOS verson is greater than 1503. if not you need to upgrade your BIOS.

Caution: Update your BIOS if its absolutely necessary and at your own risk. Wrong move may spoil your motherboard.

No. the Motherboard only Supports Phenom II X3, Phenom II X4.

http://www.superwarehouse.com/ASUS_M4A78T-E_Motherboard/M4A78T-E/ps/1559879

Either download new drivers or go buy a new sound card.

Yes, that Gigabyte motherboard does support the Phenom II X4, for additional CPUs it supports check out the following website on the specifications tab:

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128387&Tpk=GA-MA790X-UD4P

The AMD Phenom x4 is actually cheaper with 4 cpu cores compaired to Core 2 duo which has 2 cpu cores, you will get a better deal for less money on a AMD x4.

Heres a chart you can look at
http://www.tomshardware.com/charts/desktop-cpu-charts-q3-2008/3DMark-Vantage-CPU,817.html

I just got myself the AMD Phenom 9650 for 150usd
The core 2 duo e6600, which I would recommend from the core duo series costs around 200 usd.

Note that the Duo only has 2 cpu cores. You get double the power on a phenom 4x with 4 cpu cores
So the phenom is definitely the best choise! (double the power for 50usd less)

Anything else?