Ok theres definitely something wrong with this board.

[gus6464]

The other day i put together my new system and was having issues where i would get no video signal on first boot. I checked everything and the system boots fine and everything i just get no video signal. Well today i went to boot the system again and it worked. I didnt touch it or anything for the past 2 days, it just decided to work. So I install windows and then shut it off to move it to my new desk but when i go to boot up again i get no video signal once more. I pretty much have to turn off and on the pc like 10 times to finally get a video signal. It is not the video card because i tested it on my other system and it works just fine. I am also using a recommended dfi psu and ram so it is not that either. I recall some people around the forums having the same issue where they would get no video signal every once in a while and was wondering how they fixed it or if it can even be fixed. And also if DFI is aware of this issue. Thanks

[madu]

DO you have the pci-e power cable plugged to your GT?

SO do you post? does it go through all 4 leds?

[gus6464]

DO you have the pci-e power cable plugged to your GT?

SO do you post? does it go through all 4 leds?

 

My psu came with the 6pin pci-e cable and its plugged in. I also have the extra floppy power connector that is on top of pci-e slot1 plugged in as well. When i get no video signal i get 1 red led which is no video according to the manual and then it boots all the way to windows just fine with no leds when it wants to. The board pretty much has a mind of its own. And yes the psu has a 24 pin connector as well as an 8pin eps connector.

[iamkoza]

My psu came with the 6pin pci-e cable and its plugged in. I also have the extra floppy power connector that is on top of pci-e slot1 plugged in as well. When i get no video signal i get 1 red led which is no video according to the manual and then it boots all the way to windows just fine with no leds when it wants to. The board pretty much has a mind of its own. And yes the psu has a 24 pin connector as well as an 8pin eps connector.

 

So do all LED's turn off everytime you go to boot regardless of the picture?? Or only when you actually get video....?

 

have you tried a different vid cable? Analog?, digital?

[gus6464]

So do all LED's turn off everytime you go to boot regardless of the picture?? Or only when you actually get video....?

 

have you tried a different vid cable? Analog?, digital?

 

No when i get no video signal one led stays on. When the video does decide to work it boots up just fine with no leds on and no issues. Im using a crt and have tried 3 diff dvi to vga adapters.

[red930]

Here is the way to read the Diagnostic LEDs.

 

4 LEDs on = Power applied

3 LEDs on = CPU has been detected OK

2 LEDs on = RAM has been detected OK

1 LED on = VGA has been detected OK

0 LEDs on = System has booted to the Operating System.

 

As long as you are in the BIOS including running memtest from the BIOS option, there will be one LED on.

 

If you are getting 1 LED on, it means the rig is having trouble booting or is in the BIOS. I don't think its a power problem since you would see a different LED code.

 

The next time you get into BIOS you should write down all of your settings the start the Clear CMOS>

 

Since you're getting hung at BIOS you might try a nice long Clear CMOS of at least 8 hours. If that doesn't resolve it you should try a 24 hour clear. There might be some corruption that's causing an intermittent hang.

[gus6464]

Here is the way to read the Diagnostic LEDs.

 

4 LEDs on = Power applied

3 LEDs on = CPU has been detected OK

2 LEDs on = RAM has been detected OK

1 LED on = VGA has been detected OK

0 LEDs on = System has booted to the Operating System.

 

As long as you are in the BIOS including running memtest from the BIOS option, there will be one LED on.

 

If you are getting 1 LED on, it means the rig is having trouble booting or is in the BIOS. I don't think its a power problem since you would see a different LED code.

 

The next time you get into BIOS you should write down all of your settings the start the Clear CMOS>

 

Since you're getting hung at BIOS you might try a nice long Clear CMOS of at least 8 hours. If that doesn't resolve it you should try a 24 hour clear. There might be some corruption that's causing an intermittent hang.

 

Is a long clear cmos just basically removing the battery for 8-24 hours?

[madu]

Is your vid card overclocked? if so try bringing it down a bit when you could boot into windows..even if it is factory overclocked lower it down a bit.. have seen lot of people having problems with factory oced vid cards..

normally if its the oc, you normally will get troubles during games or you get artifacts, not necessarily boot problems..but it could be too..so give it a try..

[gus6464]

Is your vid card overclocked? if so try bringing it down a bit when you could boot into windows..even if it is factory overclocked lower it down a bit.. have seen lot of people having problems with factory oced vid cards..

normally if its the oc, you normally will get troubles during games or you get artifacts, not necessarily boot problems..but it could be too..so give it a try..

 

Its the evga 7800gt oc version. I would try and underclock but i cant see what im doing as i get no video signal and one led light is still on. I am doing a 24 hour cmos clear which will be done by tonight so lets see if that fixes the problem.

[jumpman]

Is a long clear cmos just basically removing the battery for 8-24 hours?

 

No, it means moving the clear cmos jumper into clear position

[Esstee]

Its the evga 7800gt oc version. I would try and underclock but i cant see what im doing as i get no video signal and one led light is still on. I am doing a 24 hour cmos clear which will be done by tonight so lets see if that fixes the problem.

 

I currently own a DFI Ultra-D and eVGA PCIe 7800GT video card as well and so I wanted to ask you (if at all possible) if you could take note of the IRQ settings assigned by the board for your eVGA card and also any other matching peripherals on the same IRQ chain.

 

I am chasing a potential bug with some peripherals and IRQ management and so I am looking for any additional information to add to my data.

 

You can get the syetem IRQ table /device listing when the system starts up (with DFI logo disabled) and pressing the [bREAK/PAUSE] key on your keyboard on the second bios startup screen.

 

Potentially I am trying to determine if the boards assigning high throughput devices on the same does not cause system instabilities and /or problems.

[madu]

There is a guide somewhere how to do the long cmos clear.. make sure you follow it carefully..