Freezing

Hi,
i have new motherboard and from that pc starts to freeze and then i need to restart pc it really annoying


Motherboard Name Asus M2N

Front Side Bus Properties
Bus Type AMD Hammer
Real Clock 200 MHz
Effective Clock 200 MHz
HyperTransport Clock 1000 MHz

Memory Bus Properties
Bus Type Dual DDR2 SDRAM
Bus Width 128-bit
DRAM:FSB Ratio CPU/9
Real Clock 246 MHz (DDR)
Effective Clock 491 MHz
Bandwidth 7858 MB/s

Motherboard Physical Info
CPU Sockets/Slots 1 Socket AM2
Expansion Slots 3 PCI, 2 PCI-E x1, 1 PCI-E x16
RAM Slots 4 DDR2 DIMM
Integrated Devices Audio, Gigabit LAN
Form Factor ATX
Motherboard Size 210 mm x 300 mm
Motherboard Chipset nForce6100-430
Extra Features JumperFree, Q-Fan 2, Stepless Freq Selection

yes its different from that was before but not i changed motherboard i give it to the guy who is fixing pc's

and one more thing how to change disc letter