My system was working fine suddenly the MB is not booting or posting.and no display. Now I disconnected all the device except CPU ( AMD Processor) got the beep ...next connected RAM no diaplay HDD led no indication...Please advice--SK

Hello Alienware,

Could be a few things.... such as the micro-fuses that have gone on the MB....

But what I dont understand is this:...."Then I disconnect the 4-pin cable that goes from the Power Supply to the motherboard near the CPU and the pc turns on fine"

How????
You have just disconnected the cable from the PSU to the motherboard....it CANT turn on! LOL.

Do you mean that the lights turn on?
Or you hear the HD spin up (if you left it connected to the MB that is)?

Please advise so I can help you more.

Getting you're system to display 1024 x 768 resolution depends on the graphics card. If you’re using the onboard VGA you will have poor display.
Suggest you use a PCI (White slot) graphics card with its own memory onboard. You will also need to make a bios setting change so the system boots to the PCI card and not the VGA.
Asus no longer provides support for this MB including drivers and bios.
You're board also supports slot A (For AMD), processors.
Only Intel Celeron and Intel Pentium III. Socket 370
see link provided;
http://www.cpu-upgrade.com/mb-ASUS/CUSI-M.html
Max CPU supported (With out over clocking);
http://www.cpu-world.com/CPUs/Celeron/Intel-Celeron%201100%20-%20RB80526RY005128%20(BX80526F1100128).html
In order to run this CPU you would need to update the bios to rev 1009. You'll find rev 1009 at the next link; http://www.userdrivers.com/BIOS/Asus-CUSI-M-BIOS-1009-With-LAN/
From what I've read it is possible to Get an AMD slot A CPU into a socket 370 MB. (Don't hold me to this though. This is a first for an old dog.
Any one of these PCI graphics cards should function on you're MB; http://www.tigerdirect.com/applications/Category/guidedSearch.asp?CatId=28&sel=Detail;55_158_2872_2872

Good luck!
Hope you find this helpful
Mike

Go to this link:

http://us.msi.com/?func=searchresult&keywords=ms-7025

Select the model motherboard you have and click on the CPU support link, it will show you a list of CPU's that are supported. You have a socket 939 board and AMD CPU's are now AM2, AM2+ and AM3 socket, which are 940 pin. It may be difficult to find a new CPU for your motherboard that is new since they have not been made in awhile.

To make sure it isn't anything else, pull all cards, and drive cables from the board so the only thing left connected is the power connectors to the motherboard, the speaker, and the power button. Pull all the ram cards.

Now power up the computer. If you hear a series of beeps then the computer recognizes there is no ram on the board. At this point I would take the power supply out and have it tested. If you do not hear a series of beeps I would still have the power supply tested as it could be the 12v is fine but the 5 and 3.3 volt side is bad.

If power supply tests good then I would replace both the motherboard and processor. You take a risk of burning a new processor if it's the motherboard causing the problems.

disconnect all hard drives except the one with your operating sytem and try that. You may have something hooked up wrong but you need to rule out other problems..can you see all the hard drives in the bios?

REINSTALL WINDOWS

If you are completely sure the FSB is right, I mean that the motherboard supports the CPU, and that there is no jumpers out of place... just reset the BIOS (take the motherboard lithium battery off and let the PC completely without power and any other cable connected) take the RAM out and all devices too. Arround 10 minutes later put just the CPU and the lithium battery in their places and boot up the system.

Last try is to disassemble all and just try with motherboard on a table with only RAM and Video. If you do this BE CAREFUL not to place the motherboard over any metallic thing, just a piece of wood is better than anything.

If this does not work, take the CPU to Guarantee...

90% in d845gvsr cpu dry problem , when we press fan after that swicth on the system may be it's giving display solution is bake cpu socket at 200 digree C, after it's working fine otherwise there is no solution. cpu socket problem like hang, restart, some time display , just bake the cpu socket with hot air gun or bga machine,

The CPU failure was possibly due to a Power Spike, if that was the case then the Memory or Motherboard may also be damaged,  it may be best to test the CPUs and the memory on a known working system, to see what is working & what is not

Hi, I have to agree "...that the motherboard's bios doesn't recognize the processor and that I should upgrade the bios...". Though I think that this is only a display issue and not necessarily true CPU speed. You can check if the correct CPU is displayed inside Windows by right click on My Computer and details would be shown in the System Properties. To upgrade the BIOS: 1. Determine/log your current BIOS and its date by pressing Pause on initial boot when motherboard details are shown; 2. Continue booting by pressing escape and run your Windows normally. Go to the website of your motherboard manufacturer and verify if they have an updated BIOS (compare date of release). If an updated BIOS is available, download. Likewise download the flashing utility. Further instructions are also available on a step by step procedure. Some newer mb versions/models have a Window based update feature. Check if you have such. Hope this be of some help/idea. Post back how things are or should you need further information. Good luck and kind regards.