Yes I know that order into whitch slots i should put the memory stics,1 and 3 or 2 and 4 but CPU-Z isshowing me everytime that the mobo is running in sinle mode?????

first check the specifications for your motherboard every motherboard has a memory limit for each slot you will be able to install the only limited memory given by the motherboard more will cause problem as you said remove the memory stic from slot 2 and insert them to the 1st slot and see what happens if you have still the same i think you have problem with slot

Here are the specs of the motherboard, both answers to your questions are "Yes". Happy purchase and have fun with it !

CPU
• Support socket AM2 for AMD® Athlon 64/Athlon 64X2 CPU / AM2+ for AMD® Phenom CPU / AM3 for AMD® Phenom II / Athlon II CPU . (95W only)
Please refer to CPU Support for compatible CPU; the above description is for reference only.
Hyper Transport Bus

• HyperTransport 1.0 supporting speed up to 1000MT/s

Chipset
• NVIDIA® nForce 630a & GeForce 7025 chipset



Main Memory

• Supports Dual Channel DDR2 667/800
- 2 DDR2 DIMMs (240pin / 1.8V)
- Supports a maximum memory size up to 8GB.



Slots
• One PCI Express 1.0 x16 slot.
• One PCI Express 1.0 x1 slot.
• Two PCI slots (support 3.3v/5v PCI bus interface).



On-Board IDE

• One IDE port by NVIDIA® nForce 630a & GeForce 7025 chipset
- Supports Ultra DMA 66/100/133 mode
- Supports PIO, Bus Master operation mode
- Can connect up to two IDE devices

On-Board SATA

• Two SATA II ports by NVIDIA® nForce 630a & GeForce 7025 chipset
- Supports storage and data transfers at up to 3Gb/s

RAID Function

- SATA II 1~2 supports RAID 0, 1 mode by NVIDIA® nForce 630a & GeForce 7025 chipset

terrible question; please add more detail

if your system has a dual CPU socket, perhaps you don't have a second cpu (where more memory banks usually require that second cpu socket to be populated in order to use the dimm slots); doubtful, but there could also be a jumper on your mobo

or maybe look in your BIOS; that's where things are enabled/disabled (i.e. server 2008, afik, doesn't have a way to specifically disable a dimm slot)

the mobo (or system) manual may have guidance for memory installation; e.g. sometimes there's a size or slot population type table (or compatibility; i.e. maybe the memory you are installing is dual rank and the system only takes single, thus it appears that the slot is disabled)

I’m happy to assist further over the phone at https://www.6ya.com/expert/shunter_ccf54e0913bd0501

Specifications
CPU
• Supports Intel® P4 Northwood/Prescott/P4 Extreme Edition processors.(PCB v1.1 only)
• FSB 400(Northwood only)/533/800MHz
• Supports up 3.2GHz and higher speed
Memory Speed/CPU FSB Support Matrix
Memory Speed/CPU FSB Support Matrix

FSB\Memory clock DDR266 DDR333 DDR400 800 MHz YES YES* YES 533 MHz YES YES NO 400 MHz YES NO NO
• Intel® 865G Chipset
- Supports 800/533/400MHz Intel NetBurst micro-architecture bus.
- Integrated graphic controller.
- Supports PC2100/PC2700 /PC3200 memory.
- Supports AGP 8X/4X at 0.8V (AGP 3.0) or 4X at 1.5V (not support 3.3V) interface.
• Intel® ICH5 Chipset
- AC'97 2.3 interface
- 8 USB 2.0/1.1 ports
- 2 channel Ultra ATA/100 Bus Master IDE controller
- SMBus 2.0 support
- 2 serial ATA Host Controllers
- Integrated LAN controller
• Support 100(Northwood only)/133/200MHz
• Support 400(Northwood only)/533/800MHz Intel NetBurst micro-architecture bus.
• Supports two 64-bit wide DDR data channels.
• Available bandwidth up to 3.2GB/s(DDR 400) for single-channel
mode and 6.4GB/s(DDR 400) for dual-channel mode.
• Supports four unbuffered DIMM of 2.5 Volt DDR SDRAM.
• Supports up to 4GB memory size without ECC.
• One AGP slot supports 8x/4x at 0.8V (AGP 3.0) or 4x at 1.5V (3.3V is not supported).
• Three PCI 2.2 32-bit Master PCI Bus slots.
- Supports 3.3v/5v PCI bus Interface.
• One CNR slot
• Dual Ultra DMA 66/100 IDE controllers integrated in ICH5
- Supports PIO, Bus Master operation modes.
- Can connect up to four Ultra ATA drives.
• Serial ATA/150 controller integrated in ICH5
- Up to 150MB/sec transfer speeds.
- Can connect up to two Serial ATA drives.
• AC'97 link controller integrated in ICH5
• 6 channels software audio codec C-Media 9739A
- Compliance with AC97 v2.2 Spec.
- Meet PC2001 audio performance requirement.
- Can support SPDIF Out via 3-pin SPDIF bracket only.
• Intel 82562EZ
- Integrated 10/100 Ethernet MAC and PHY in one chip
- Supports 10Mb/s and 100Mb/s auto-negotiation operation
- Compliant with PCI v2.2, and LAN on Motherboard (LOM) standard

Is memory matched (DDR2 667)

Have you put original mem in slot 2

Download / install CPU-Z with both modules in and run program to see if it shows.

If all above is correct may be damaged mobo.

This is for your laptop from vendors site.

Memory5
• Configured with 512MB DDR2 SDRAM (1 slot occupied and 1 available)
• 512MB(min)/2048MB (max), 2 memory slots using 256MB, 512MB or 1024MB PC4200 DDR2 533MHz SDRAM.

Hi:
socket 478 motherboards are getting harder to find. You should shop around at www.newegg.com or www.tigerdirect.com and even www.pricewatch.com

You might find an economical board, or a cpu/board combo that isn't much more to upgrade to.

its the memory issue try to install 1 memory one at a time and try to chang the slots

I just purchased this same mobo with a 2400+ AMD XP CPU and it's quite fast for my Rail Simulator game. I have a 2800+ cpu that I will be trying soon. Good reference on this is at link: http://www.cpu-upgrade.com/mb-MSI/KT3V_KT4V_(MS-6712).html . there you can find the max CPU that will work with your mobo. Good luck! -

v i i i
P5GD1-FM specifications summary
(continued on the next page)
CPU
Chipset
Front Side Bus
Memory
Expansion slots
Storage
High Definition
Audio
LAN
USB
IEEE 1394
BIOS features
Rear panel
LGA775 socket for Intel® Pentium® 4/Celeron processor
Compatible with Intel® Performance Universal FMB 2005
processors
Supports Intel® Hyper-Threading Technology
Northbridge: Intel® 915P Memory and Controller Hub (MCH)
Southbridge: Intel® 82801FB ICH6
800/533 MHz
4 x 184-pin DIMM sockets support unbufferred non-ECC
400/333 MHz DDR memory modules
1 x PCI Express x16 slot for discrete graphics card
3 x PCI slots
Intel® ICH6 Southbridge supports:
- 2 x Ultra ATA 100/66/33 hard disk drives
- 4 x Serial ATA hard disk drives
Realtek® ALC861 8-channel CODEC with Jack-sensing
and Universal Audio Jack (UAJ®) technology
1 x Optical S/PDIF out port
Realtek® RTL8101L LAN controller
Supports up to 8 USB 2.0 ports
T1 controller supports:
- 2 x IEEE 1394a ports
4 MB FWH, AMI BIOS, Green, PnP, DMI2.0, WfM2.0,
ACPI 2.0a, SM BIOS 2.3
1 x Serial port
1 x Optical S/PDIF out port
1 x IEEE 1394a port
1 x LAN (RJ-45) port
4 x USB 2.0 ports
8-channel audio ports

Hi, Mistyman here. All Asus mother boards that have dual channel RAM slot must have equal ram in each slot. In most cases the paired slots are matched by color for easy ID, some are identified by a printed ID on the mother board. With your board you will have to have run all of your RAM for the one CPU. If you have only one stick this must be in slot one. If you are using two sticks then utilise the dual chanel system that ASUS have and use A1 & A3. To activate the second CPU you will need to install matching sticks of RAM in the B slots. both cpu's will need to have the value of RAM to work together properly. CPU one = slot A for RAM CPU two = Slot B for RAM. Goodluck, the ASUS boards are a value product.