Computer not booting

[BAC]

Hi all,

I recently purchased an ECS X79 AX motherboard - ECS > X79R-AX (V1.0)

And a Xeon 2760 CPU - Intel Xeon E5-2670 2.60 Ghz 20 Mb 8-Core CPU Processor SR0H8 115W

What's happening is that when I powered it on nothing is coming up on the screen. I can get a display (only on VGA, HDMI nothing) for about 1-2secs showing the motherboard logo then it will go black, making a single beep sound every ten seconds.

Has anyone ever come across this before? It very strange. The vid card, RAM and PSU are known working (using them now) and cannot for the life of me think what it could be. i have tried the below-

Reset CMOS and removed battery for 20mins
Used known working video card, ram and PSU
Tried inside and out of pc case in case it was a short
Tried all ram slots with either one dimm or full
Re-seated CPU and made sure its in the correct way. Also checked for bent pins
Tried CPU in another motherboard; works correctly.
Tried all PCI-E slots for vid card
Re-seated 24pin and 8pin connectors

Any suggestions?

Thanks in advance.

 

[BAC]

Update: I can now get into the BIOS when I have my GTX670 plugged in but not my 970.... 970 shows display for 1sec then nothing. Very strange

 

[flatty]

Update: I can now get into the BIOS when I have my GTX670 plugged in but not my 970.... 970 shows display for 1sec then nothing. Very strange

Check the RAM settings in BIOS

 

[mda]

Try updating the BIOS.

 

[Araxie]

Update: I can now get into the BIOS when I have my GTX670 plugged in but not my 970.... 970 shows display for 1sec then nothing. Very strange

Oh well, ugh, your issue may have something to do with uefi/legacy BIOS related.. and that's why your 670 post and the 970 does not.. I think the gtx 970 is uefi only while IIRC most of the gtx 670 had legacy bios by default.


So nothing is strange at all if the issues are related to GPU bios support and/or compatibility.. similar issue presented another fellow member here at [H] with an old mobo resulting in him buying a new GPU with hybrid bios solving his motherboard uefi compatibility troubles. You may want to check: Installing gigabyte GeForce 960gtx on Evga 790i

So yes as I always say, be sure to check for BIOS update for your motherboard and to check for UEFI/Legacy switch...

 

[Drannin]

The latest bios added additional sandy bridge support. Sadly there are only 2 bios listed on the website with no mention of ivy bridge.

BIOS Name BIOS for X79R-AX V1.0 Version 11/29/2011
Update Description Release Note:
1.Fix screen garbled problem when NV Graphic driver not install yet.
2.Fix Multi-language cannot switch problem when clear CMOS

*Support eBLU(BIOS Live Update Utility)
*Support eOC

BIOS Name BIOS for X79R-AX V1.0 Version 2/6/2012
Update Description Release Reason:
1. Support Sandy Bridge C2 and M1 stepping CPU
2. Improve Gear Ratio overclocking function
3. Improve the compatibility of USB3.0
4. Fix Win8 install BSOD issue
5. Improve compatibility of PCIE X1 slot

*Support eBLU(BIOS Live Update Utility)
*Support eOC

 

[michalrz]

I dread the day a video card becomes UEFI only. So I'll just ignore this scary thought for now.

Okay so you have a Xeon. And you can get it to show stuff, so the power is right and the CPU can work.
It's a 32nm part, so it should (in my experience) work fine in a X79 scenario.

Suddenly, memory. Xeons like ECC memory, don't they?

 

[BAC]

Thanks for your help guys. With the 670 plugged in everything works normally, although for some strange reason i had to plug it in vga to the monitor first to get a signal, then switch back to hdmi. Windows installs correctly, can run games, Prime, 3dmark etc. all fine. I've had a look through the Bios but cant see anything legacy boot...

 

[BAC]

Oh and the Bios was already the latest version.

 

[pendragon1]

and that's why your 670 post and the 970 does not.. I think the gtx 970 is uefi only while IIRC most of the gtx 670 had legacy bios by default.

araxie is right, this is your problem.