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Upgraded Bios, Monitor Died


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#1
Slyxfx

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So i recently built myself a new PC. I was having issues with my 5850's in 'Tri-Fire' and was told that a Bios update may fix the issues. So i updated my bios, it restarted and suddenly my monitor has no signal.

Motherboard
- Asus Crosshair IV Formula

What i have tried
- Spamming the 'Clear CMOS' button on the board.
- Taking out the battery on the board then restarting
- various restarts
- unplugging my PSU and Clearing CMOS

Literally nothing works and i have nowhere else to turn. Any suggestions?
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#2
Slyxfx

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Everything is getting power. The GPU fans all start spinning, but the monitor acts as if the PC is still turned off and goes into power saving mode. I don't know what i could have done, but it looks like an RMA to me :)
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#3
Digerati

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How do you know everything is getting power? Fans spinning only indicates 12V. There still must be 5 and 3.3V from the PSU. Is your PSU big enough?

Please list your hardware. Have you tried with just one graphics card? Did the system ever work?
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#4
Slyxfx

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It was working fine for 3 days. I have a 900W Be Quiet PSU while is more than enough for this setup.
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#5
Digerati

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I would still try just one card and see if can get it working that way. If it works, then you know the PSU is working fine too. I have never seen a "Be Quiet" PSUs as it is sold in the Europe market only but reviews have been very favorable. That does not mean, however, that you might not have got a bad one. Sadly, it happens even with the best of brands, and will happen until Man can create perfection, every time.

At the very least you need to make sure all connections are tight and secure.
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#6
Slyxfx

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I'm almost certain that its not the PSU now. Booted the PC a few different times and everything is receiving power, however the LEDs on the Motherboard show as red rather than green.
It is surely a mobo issue as it happened during the BIOS Update Reboot. However, it makes no sense that Clearing CMOS and removing the battery would not fix this... especially on a mobo thats 3 days old
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#7
123Runner

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Are you talking about the diagnostic LED's? Some LED's like that will be red for good. What does your manual state for them?

The overclocking LED's can be as follows:

Crosshair IV formula has four LEDs to indicate at which range the voltages from the CPU, north bridge, south bridge and memory are at the moment. They can be in three different colors: green (normal), yellow (high) or red (crazy).


There are numerous LED's and beep tests that are done.

Your Manual is located in the download tab.
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#8
Digerati

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I'm almost certain that its not the PSU now. Booted the PC a few different times and everything is receiving power,

I ask again, "how do you know?" Fans and drive motors work on 12V. How do you know the +5 and +3.3V are present?
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#9
Slyxfx

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well i have tried the PSU on my bench rig... it works 100%.
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#10
123Runner

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Are you talking about the diagnostic LED's? Some LED's like that will be red for good. What does your manual state for them?

The overclocking LED's can be as follows:

Crosshair IV formula has four LEDs to indicate at which range the voltages from the CPU, north bridge, south bridge and memory are at the moment. They can be in three different colors: green (normal), yellow (high) or red (crazy).


There are numerous LED's and beep tests that are done.

Your Manual is located in the download tab.

Where do we stand on this?
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