new pc build dont fully turn on , please help

[tonschk]

Hello, can you help please ?, I have build my new computer with the MARS FOXCONN Motherboard, but when i turn on the pc , after a few seconds i hear the normal single short beep from the motherboard , after that in the black screen appeared some information about the video card 8800GT 512Mb etc , after in the red screen appeared the two greek MARS Motherboard black warriors and a sentence " PRESS TAB TO SHOW POST SCREEN , DEL TO ENTER SET UP , but the PC immediately (at once) turn off automatically ,after two seconds the PC turn on automatically and repeat exact the same process (as before) again and again and again and again ,there is a blue small light next the motherboard connections of the front panel ,and a red smal light close to the extreme right ram memory slot .please help , my system is PSU 650WATTS seasonic , intel core 2 duo 3GHz E8400 6Mb cache, sata Hard disk 320GB HITACHI , 3GB RAM 800, nVidia Sparkle 8800GT 512Mb fanless cool-pipe, sata opticalDrive , Coolermaster CM690case ,thank you

[-Pv-]

I'm unfamiliar with THAT particular motherboard, but don't panic. It looks like things might not be that bad.

Good news:
Your CPU, memory, and CGA video are working because you can see the bios post. Since this is the 1st time you started the computer, the bios wants you to at lease VISIT the bios settings so you can set the clock and visit all the screens to see all the components of your computer are working. I suspect the reboot is a timeout because you are not pressing TAB (this is unusual- you are sure it's not DEL?) soon enough. Go ahead and press the SETUP button, set the clock, visit the screens (don't touch anything you do not understand) and with the OS installation disk in your CD drive, SAVE and EXIT the bios. Your computer should detect the OS disk in the drive and start installing it.

If all the components of your computer are working, things should go smoothly after that.
-Pv-

[tonschk]

Originally Posted by -Pv-

I'm unfamiliar with THAT particular motherboard, but don't panic. It looks like things might not be that bad.

Good news:
Your CPU, memory, and CGA video are working because you can see the bios post. Since this is the 1st time you started the computer, the bios wants you to at lease VISIT the bios settings so you can set the clock and visit all the screens to see all the components of your computer are working. I suspect the reboot is a timeout because you are not pressing TAB (this is unusual- you are sure it's not DEL?) soon enough. Go ahead and press the SETUP button, set the clock, visit the screens (don't touch anything you do not understand) and with the OS installation disk in your CD drive, SAVE and EXIT the bios. Your computer should detect the OS disk in the drive and start installing it.

If all the components of your computer are working, things should go smoothly after that.
-Pv-

thank you for your help , yes , i have done a mistake is not TAB , is DEL , I willtry your suggestions , but the computer is turning off very very very fast after the sentence " PRESS TAB TO SHOW POST SCREEN , DEL TO ENTER SETUP"

[ghost_666_rider]

As another stupid thought, check that your cpu cooler is plugged into the proper header. If you missed by an inch you'd be in the north bridge power socket, and this board has a default setup in bios to read the rpm of the cpu fan and not to boot if its not receiving signal.

[GlobalExplorer]

Probably you have to check all connections .. I have build dozens of computers and it has happened to me many times that ;

floppy / harddisc cable was not properly connected
graphic/sound card was not firmly in its slot
memory modules / cpu

Did you forget that your graphic card needs to be connected with a power cable? I think my brother also didnt get past the post screen because of that.

Another very nasty problem that happened to me once is that the mainboard was in contact with the case. I had forgotten to use plastic washers which produced some sort of short circuit. The computer wouldn't POST but it all went away once I had installed the mboard a second time with the washers.

Keep checking and you will finally get it running .. in most cases the hardware doesnt take damage, fortunately, but care is necessary.

[tonschk]

Originally Posted by ghost_666_rider

As another stupid thought, check that your cpu cooler is plugged into the proper header. If you missed by an inch you'd be in the north bridge power socket, and this board has a default setup in bios to read the rpm of the cpu fan and not to boot if its not receiving signal.

YES , this must be the reason , I install inside the case Coolermaster CM690 three exhaust fans (140/120mm) and three intake fans (140/120mm ) , and I dont install any fan in the Coolermaster Hyper 212 CPU cooler , thinking that the airflow was already enough with this Six 120/140mm fans , this is the reason ,thank you very very very much

[tonschk]

Thank you very much all, this forum is very helpful , thank you

[-Pv-]

Usually if the CPU fan connector is plugged into the wrong place or not at all, the MB will issue a series of beeps in addition to the startup single beep.
-Pv-

[ghost_666_rider]

The two LED's you are referring to only indicate its getting power. Could be almost anything causing it to not post, but hopefully you tried the simplest things allready like reseating your ram.

Try hitting the tab before it resets so you can get into the bios. This will be a little more indicative of where to look for the problem.

[Torps]

Originally Posted by tonschk

Hello, can you help please ?, I build my new computer with the MARS FOXCONN Motherboard, but when i turn on the pc , after a few seconds i hear the normal single beep from the motherboard , after that in the black screen appeared some information about the video card 8800GT 512Mb etc , after in the red screen appeared the two greek MARS Motherboard black warriors and a sentence " PRESS TAB TO SHOW POST SCREEN , TAB TO ENTER SET UP , but the PC immediately turn off automatically ,after a few seconds the PC turn on automatically and repeat the same process again and again and again and again ,there is a blue small light next the motherboard connections of the front panel ,and a red smal light close to the extreme right ram memory slot .please help , my system is PSU 650WATTS seasonic , intel core 2 duo 3GHz E8400 6Mb cache, sata Hard disk 320GB HITACHI , 3GB RAM , nVidia 8800GT 512Mb , sata opticalDrive , Coolermaster CM690case ,thank you

Hello,
I ran into that problem myself before, you have something wired wrong. You might have to go through everything one by one to make sure you didnt miswire. I would suggest you go through by unplugging and plugging everything back in place. You might also have to make a change in the bios, maybe, but odds its not really the bios. Worst case scenario follow the instructions n the manual from wiring to bios config.

[Rockin Robbins]

How goes it tonschk? Any luck? Try pressing that delete key to enter CMOS settings and to to the system monitoring page where you can see motherboard and CPU temperatures. Your clue might be there. If the CPU is overheating, for instance, your thermal paste might not working right due to bubbles or voids and heat is not being transmitted to the heat sink. I've seen that several times with problems identical to yours.

Especially if that shows normal temps, unplug all expansion cards that are not necessary to start your computer and all but one stick of memory. You want to boot up in the simplest possible configuration. If that is successful, try peripherals one at a time until you find the culprit. If it doesn't boot, remove the memory stick and replace it with the other. If your problem is a defective component this could be tough.

[McBeck]

I would suggest that you ONLY connect was is needed to POST.
That means, MB, RAM(min amount), CPU, Graphics card.

No HD, No floppy.

That will simpify things for you

[tonschk]

Hello , thank you all for the help , I removed the video card nVidia Sparkle 8800GT 512Mb Fanless heatpipe and after that I turn on the PC , the PC make a little bit "longer" single BEEP ,but the screen is fully continuosly black because this MARS Motherboard dont have the integrated video card , but the PC dont turn off automatically any more ,the PC is running continuosly "ON" , to turn off the PC,I must press the switch (on/off) just once , if I add the video card ,the computer start to turn off automatically just one second after this sentence is on the screen..... "PRESS TAB TO SHOW POST SCREEN , DEL TO ENTER SET UP"

1)...I cannot access to change the BIOS even if I press continuosly the TAB or DEL ,when the video card is installed the PC turn off automatically just one second after the sentence "PRESS TAB TO SHOW POST SCREEN , DEL TO ENTER SET UP " appeared on the screen

2)...the RAM is seated properly ( many times already checked)

3)....the extra power cable connector for the video card was properly seated ( before I removed the video card )

4) .....the extra power cable connector (8 pins) for the CPU is properly connected in addition to the 24 pins main connector

5)......This motherboard have nine holes that are upon nine brass standoffs ,properly screwed with only nine screws ,I dont think we need to add plastic whashers between the screws and the MOBO ,because somehow the nine screws must have metallic contact with the MOBO ( I think this is the correct way)

6)....I think the CPU cooler is properly installed because when I removed the video card the PC is running continuosly ( but show only black screen )

7).....I only connected to the MOBO one hard disk ,the optical DVD player , THREE RAMs , CPU cooler , and the video card . NO floppy ,NO sound card

thank you very much for your help

[McBeck]

OK, I see possible faults here:

1) Graphics card dead/faulty
2) Powersupply insufficient or faulty.
3) MB dont work with 3 RAM - remove 2
4) Have you connected ALL the nesesary power connectors from the PSU to the MB (Check your manual)

I think either one of the above would create the problems you have.

Can you test the GF card in another machine/Do you have another GF card you can try?

Got this from my friend:
1) Only connect: MB, CPU+fan+Video, 1 RAM.
2) Remove all external connections exept keyboard
3) Remove all connectors from MB to leds, buttons infront
4) Remove powerconnections from powersupply to MB
5) Try and start the PC using the MB connectors (Will not start, but to reset all components on the MB)
6) Move the reset jumper on MB to reset BIOS
7) Remove battery for 10 min - then put it back.
8) Move the reset BIOS jumper back
9) Reconnect power to MB
10) Try and boot

Hows that?