Gateway rs780 rev 1 0

Ooooook. I just recently picked up an AMD Phenom II X6 1090T Black Edition processor, which is a Socket AM3 processor, which I was told was compatible with an AM2 socket.. I currently have an AMD Phenom X4 9500 processor, which is an AM2+ socket processor.

Looking around, it seems that AM3 processors are usually compatible with AM2 and AM2+ sockets, just needing a BIOS update sometimes. I connected the processor but low and behold it doesn't power up (the heat-fan spins and the comp makes all the beep noises and power seems to be on, but the power button just flashes and the monitor won't work). I have been tearing my hair out trying to find an appropriate BIOS update that will make my Socket AM2 compatible, but for the life of me I can't find any, and quite frankly I don't understand any of the documents describing how to "flash" your system and such.

So I need some help finding this BIOS update, if it even exists, and on how to install it correctly. Here's my CPU-Z stuff.

CPU Arch : 1 CPU - 4 Cores - 4 Threads
CPU PSN : AMD Phenom 9500 Quad-Core Processor
CPU EXT : MMX(+), 3DNow!(+), SSE (1, 2, 3, 4A), x86-64, AMD-V
CPUID : F.2.2 / Extended : 10.2
CPU Cache : L1 : 4 x 64 / 4 x 64 KB - L2 : 4 x 512 KB
CPU Cache : L3 : 2048 KB
Core : Agena (65 nm) / Stepping : DR-B2
Freq : 1100.1 MHz (200.02 * 5.5)
MB Brand : Gateway
MB Model : RS780
NB : AMD 780G rev 00
SB : AMD SB700 rev 00
GPU Type : NVIDIA GeForce GTS 250
GPU Clocks : Core 760 MHz / RAM 1150 MHz
DirectX Version : 11.0
RAM : 8192 MB DDR2 Dual Channel
RAM Speed : 400 MHz (1:2) @ 6-6-6-18
Slot 1 : 2048MB (6400)
Slot 1 Manufacturer : Samsung
Slot 2 : 2048MB (6400)
Slot 2 Manufacturer : Samsung
Slot 3 : 2048MB (6400)
Slot 3 Manufacturer : Samsung
Slot 4 : 2048MB (6400)
Slot 4 Manufacturer : Samsung