Asus Mother Board M3n78

This is a bit of a duplicate post since I also put it in power supplies, but I honestly need all the help I can get :fou:Having a lot of strange issues with my asus m3n78-EM, and trying to sort it all out. I've been suspecting the board because many of my problems are things other buyers reported as well on newegg.One thing that threw a red flag is the +12v rail is showing +12.18 - +12.26 in the bios.

 

PSU:
Rosewill 500W Max.
+3.3V@24A, +5V@20A, +12V1@19A, +12V2@18A,
-12V@0.5A, +5VSB@2.5A

Full Specs:
MB ASUS M3N78-EM AM2+ GF8300
CPU AMD|A64 X2 6000+ 3.1G AM2 1M
MEM 2Gx2|CORS TWIN2X4096-6400C5
HD 250G|ST 7K 8M SATA2 ST3250310AS
DVD BURN LITE-ON|DH-20A4P-04 20X

 

MPN : 90MIB5L0G0EAY00Z

Form Factor Micro ATX
Compatibility PC
Compatible Processors AMD Athlon 64, AMD Athlon, AMD Sempron, AMD Athlon 64 X2, AMD Phenom FX, AMD Phenom, AMD Phenom X4, AMD Athlon X2
Front Side Bus Speed 2600 MHz
Technical Features
Integrated Input/Output Ports FireWire (IEEE1394a) x 2 • RJ45 Lan Port x 1 • PS/2 Mouse x 1 • PS/2 Keyboard x 1 • Floppy Port x 1 • USB 2.0 x 12 • HDMI x 1 • 1 x eSATA
Expansion Slots PCI Express x16 x 1 • PCI Express x1 x 1 • PCI x 2
RAID Support RAID 0
Storage Controller Type(s) DMA/ATA-133 (Ultra) x 1, Serial ATA II x 5
Processor
Socket Type Socket AM2
Max supported CPUs qty 1
Memory
Memory Type DDR2 SDRAM
Number of Memory Slots 4 x 240 Pin DIMMs
Supported RAM speeds 800 Mhz • 667 MHz • 1066 MHz
Max Supported RAM 8 GB
Audio / Video
Audio Output Sound Card • SPDIF Out • 7.1 Channels • Line Out • Optical Out
Integrated Audio Intel High Definition Audio Subsystem • Realtek ALC1200
Audio Input Microphone Jack • 1 x Line In
Video Out Ports DVI x 1
Video Interface PCI Express x16
On Board Graphic Processor NVIDIA GeForce 8300
Communication
Networking Type Ethernet, Gigabit Ethernet, Fast Ethernet
Other Features
Other Features Chassis intrusion detection • Dual Channel Memory Architecture • 64bit Ready
Fans 3 x Fans
Chassis Type Desktop
Package Qty 1
Dimensions
Width 24.4 cm
Depth 24.4 cm
Miscellaneous
Bios Features PCI 2.2
Power Configurations ACPI/APM Power Management • Wake On Ring Header • Wake On LAN Header
Regulatory Approval RoHS
Bios Type 8 Mbit Flash EEPROM with AMI BIOS
UPC 4719543164419
Product ID 69892308