new pc build dont fully turn on , please help

[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?

[tonschk]

Thank you very much for your help , I will try to check the video card 8800 GT in another computer , my older computer only have a 350W PSU ,therefore cannot install 8800GT in my older PC, I will install the video card nVidia 7300LE from my older computer in this new computer to check what happen ,

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

I will try the above steps to check what happen , thank you very much

[Rockin Robbins]

What the title says.

[SteamWake]

Ill repeat also

Make certain the cpu heat sink is properly seated on the cpu !

Ive had to trouble shoot a very flakey machine that acted exactly as you describe and it turned out the heat sink was not precisly seated on the cpu. The cpu quickly overheated and shut the system down. Sometimes in seconds sometimes a little bit longer.

It was very hard to figure out as all other connections were in order.

[clayp]

Isn't there a "default" setting for the BIOS...If so set it to that..I believe you have to have washers on the MD standoffs..Do you know how to clear the CMOS??.Either there is a JUMPER to do it or take the battery out..Your MB book should tell you how to do it..Clear the CMOS and try it again.....

[tonschk]

Originally Posted by SteamWake

Ill repeat also

Make certain the cpu heat sink is properly seated on the cpu !

Ive had to trouble shoot a very flakey machine that acted exactly as you describe and it turned out the heat sink was not precisly seated on the cpu. The cpu quickly overheated and shut the system down. Sometimes in seconds sometimes a little bit longer.

It was very hard to figure out as all other connections were in order.

Hello,thank you for the help, I will change the thermal paste of the CPU to another maker,the thermal paste I apply to the CPU cooler was a thermalright almost white colour , now I will apply the one that comes with the CPU cooler i have installed ( coolermaster Hyper 212 " who knows may be

[longam]

Doesn’t that video card require an external power supply connector to the PSU, and is it plugged in?

[Rockin Robbins]

Motherboards no longer (and haven't for a couple of years) need washers, as they actually use the screws and brass standoffs for ground. That's why you see bare metal where the screw seats. Putting washers in there risks a bad ground and a fried board. Be very careful about advice.

[tonschk]

Originally Posted by Rockin Robbins

Motherboards no longer (and haven't for a couple of years) need washers, as they actually use the screws and brass standoffs for ground. That's why you see bare metal where the screw seats. Putting washers in there risks a bad ground and a fried board. Be very careful about advice.

Yes ,I know ,around each of the holes of the Motherboard where the head of the screws seats is a small bare metallic area to touch the metal of the screw and ground the motherboard ,I saw that in a book ,I think is correct

[AkbarGulag]

This was new to me, but recently I purchased a Asus-P5E Motherboard. It's given me no end of problems and I don't advise buying one :p But....

Believe it or not, the mobo did not know the correct voltage setting for the CPU. I had to manually enter it, it was running half a volt under what it should. Needless to say, the machine was incredibly unstable.

I realise this may not pertain to your problem, but other people need to know. It's the first mobo I have ever seen like this.

[tonschk]

Hello , I installed the video card nVidia 7300LE in the new machine , and with this old video card was possible to install the operating system XP Home edition , have done the partition of the disk , but if I install again the 8800GT , the PC have the same problem again , immediately turn off after the sentence PRESS TAB TO SHOW POST SCREEN , DEL TO ENTER SET UP

[hawk2495]

ok so if it works with another video card, that tells us the mobo itself seems to be ok.... in my mind that brings it down to the 8800GT.... its possible there is just a manufacturer defect in the card. i would contact the card's manufacturer and see what they say, you may need to send it back and get another one..... ive noticed from friends that the entire 8800 series seems to be filled with issues, so you may have just gotten unlucky..

[tonschk]

Hello , thank you , now I will try to experiment with the clear of the CMOS with the change of the jumper etc, and the change of the thermal paste , also send messages to the manufacturer of the 8800GT , thank you

[Ragtag]

Thermalpaste should be applied with a very thin layer. Use a creditcard or something thin to apply it. It should be thin as in almost transparant.

Did you connect the moleconnector to you 8800GT?