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Asus Sabertooth z87 booting issues.

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October 2, 2013 12:45:26 PM

Recently I've assembled a new PC (just over $3000) and it's been running great, but recently ran into an issue.

When I turned it off, I turned it back on and it wouldn't display anything. Thinking it may be related to the GPU(s) I removed them and attempted to use onboard. No dice. I then tried reseating the RAM. Nothing. I tried checking all cable connections and nothing. I tried using the button on the back of the MoBo that resets the BIOS, and nothing.

I was running an overclock of 4.4GHz at 1.22v.

Lastly, I tried pressing a button on the MoBo that tests the RAM. It will automatically reset the PC. When it boots, it works fine, boots right to the bios saying the RAM was OK and the system was ready to boot, just to enter the bios and save the settings. Well, if I do that it starts the cycle all over again. If I don't and just enter the bios and select "discard changes and continue" it boots into Windows no problem, with nothing indicating any issues and the PC runs like a champ.... until I reset it.

The bios is up-to-date (attempted to use as a fix) and nothing.

Has anyone run into a similar issue? If so, how'd you fix it? If this board requires an RMA I'm just returning all the parts and getting a laptop because these issues with custom builds are just outrageous with RMAs on parts that should have no issues as they're supposed to be "high-quality"

Computer specs:

Intel Core i7 4770k @ stock
Asus Sabertooth z87
Asus GeForce 760 OC Edition (x2)
Corsair Dominator Platinum 1866 16GB (4x4GB)
Corsair H100i Liquid Cooler
Corsair Obsidian 550D
Corsair HX1050 1050W PSU

H100i on push-pull. (4 fans)
GPUs in SLI.
8 Fans total running inside case.
Using Arctic Silver 5 TIM

Any help would be greatly appreciated.

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October 2, 2013 2:09:22 PM

I had a similar issue recently. Mine was PSU related.
It's worth testing with a known good power supply (must be Haswell certified). Just take off every connection to the board except the 24 and 8 pin connections, then trip the on/off pin with a screw driver. Ensure IGFX is enabled and connect VGA/DVI or HDMI.

Let us know how you get on.
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October 2, 2013 3:05:05 PM

joesklar said:
I had a similar issue recently. Mine was PSU related.
It's worth testing with a known good power supply (must be Haswell certified). Just take off every connection to the board except the 24 and 8 pin connections, then trip the on/off pin with a screw driver. Ensure IGFX is enabled and connect VGA/DVI or HDMI.

Let us know how you get on.


Before I forget, I wanted to add:

Sometimes holding down the power button until the PC shuts down and holding it there while it is off for 15 seconds, and turning the PC on again will allow it to boot, however it states that the "Overclock failed!" meanwhile it's running at stock. However, upon entering the BIOS is will show that the overclock is still present. This only happens when this method works. Any other time it shows stock.
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October 2, 2013 3:27:59 PM

joesklar said:
I had a similar issue recently. Mine was PSU related.
It's worth testing with a known good power supply (must be Haswell certified). Just take off every connection to the board except the 24 and 8 pin connections, then trip the on/off pin with a screw driver. Ensure IGFX is enabled and connect VGA/DVI or HDMI.

Let us know how you get on.


Alright, so the issue is resolved. I ended up removing the CMOS battery (hate doing it, no matter how easy it is) for 5 minutes, disconnecting the power supply from the wall, flipping the switch on the back, and holding down the power button (get it all done at once :p ) and put it all back together. Booted with no issues. Restarted the PC about 17 times to be sure at stock, and reapplied my OC. No issues.

Strange that it happened. I'm still curious to see what happens. I also ordered a PSU from newegg just in case. Looks like I'll have an extra.
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