No display on Dell Aliewnware Aurora R4

Hi there,
i've just been given a Dell Aliewnware Aurora R4 Desktop which starts up but there's no display on the screen. Initially there were 6 short beeps indicating a graphics card problem but i tried a new card, an ASUS Radeon HD 5450, and there's still no display. Now the 6 beeps have stopped when the NVIDIA GEFORCE GTX 760 card is installed aswell so not sure if it's a card problem. The monitor is mine and works fine btw. I don't have a similar CPU or motherboard to swap out. I've also tried every combination of the 4 sticks of RAM. Has anyone any other ideas i might try?

Here are the Specs:

CPU: INTEL I7-4820K Socket 2100
RAM: 4X2GB 1600MHZ DDR3
Hard Drive: Seagate Barracuda 1TB SATA 6GB/S (7200RPM)
Graphics Card: NVIDIA GEFORCE GTX 760 1.5GB GDDR5
Mothereboard: Dell 0FPV4P
OS: WINDOWS 7 HOME PREMIUM
DahoeAsked:
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Wayne88Commented:
If you can't even see the BIOS screen then I don't think it's a RAM issue.  Any chance it may be the monitor cable or plug, broken/loose pins, etc?
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DahoeAuthor Commented:
No i've checked the monitor and cable and they're fine and they're working on my PC now.
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Danny ChildIT ManagerCommented:
are there different motherboard slots you can try the graphics card in?  or a different system to try those cards out?

AFAIK that mobo doesn't have onbard graphics.
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DahoeAuthor Commented:
There are 2 PCIE slots & i've tried both. The 2nd ASUS card is new but i'll try it in a different system in the morning & report back.
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nobusCommented:
i take it you connected the power to the video card?
then, i would try another PS - or measure the outputs
should be 12 - 5 and 3.3 V
here the 24 plug pinout : http://pinouts.ru/Power/atx_v2_pinout.shtml

to be complete, here is how i handle this problem; i use the minimum setup as described here :  http://www.experts-exchange.com/Hardware/Components/Motherboards/A_1945.html                  (Short-overview-of-how-to-troubleshoot-bad-hardware-when-a-pc-does-not-post)
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DahoeAuthor Commented:
Ok so the 2nd card, the ASUS Radeon HD5450, works in another pc so not the problem.
Will swap the power supply next.
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DahoeAuthor Commented:
I powered up the pc with a basic 500w psu & the ASUS card & i now have display.
Unfortunately i don't have PCIE power on this power supply so not sure if the original card is dead aswell. I 'll get one 2moro & test it.
Unfortunately it's not detecting the hard drive & says the CPU fan is off, it's water cooled btw, could this be due to the basice PSU? The original PSU is 850W.
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nobusCommented:
that seems normal -  if it can't handle all the power demands - 500 W is nearly half the one you had...
you can also have your video cards tested in a shop (together with the psu)
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Danny ChildIT ManagerCommented:
you can also get molex to pcie 6 pin adapters pretty cheaply if you just want to test using the PSU you have.  It should still work, as long as you don't go on an extended Crysis binge...
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DahoeAuthor Commented:
I slaved the Seagate hard drive to a working PC, ran Seatools & it failed.

Beginning to think this PC might have suffered a powersurge or something to knock out the PSU, Graph Card & Hard Drive, would this sound plausable?
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nobusCommented:
that's always possible
use the minimum setup to define the bad parts -  or test each on another system
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DahoeAuthor Commented:
Have ordered another PSU so will be able to test when it arrives, should be here on Tuesday so will report back then.
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nobusCommented:
did you use the minimum setup?  it guides you quickly to the bad part(s)
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DahoeAuthor Commented:
Power Supply arrived this morning so will see how it goes later today. I ordered an XFX Pro Series 850W so hope it will be a suitable swap for the Dell one as the Dell is €200 plus delivery & customs charges from the US & the XFX was €120 incl delivery.

The minimum setup isn't really possible with this PC as there are various chipboards attatched & powered by molex  or attached to the water cooling system but i've disconnected everything i could find that isn't necessary.

Will let you know how i get on later this evening.
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nobusCommented:
ok waiting..
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DahoeAuthor Commented:
Right so. a couple of adjustments to the BIOS UEFI to Legacy & we're back up & running.
The Graph Card is still dead but the PSU replacement has done the trick.
Thanks for all your help. ;)
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DahoeAuthor Commented:
In the end it was the Power Supply & the Graphics Card so i replaced both.
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nobusCommented:
yep - maybe due to lightning?
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DahoeAuthor Commented:
I did suggest that to him as there was an electrical storm in the area the week before this happened but the problem occured after that so have reccommended he get a decent surge  protector anyway. Nothing else in the house was affected though.
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DahoeAuthor Commented:
Thanks for all your help by the way, much appreciated. ;)
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