I just bought an Asus Sabertooth and a R9 290X. Hooked them up, connected the video card to my monitor and, the pc boots up bu

Acura510

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May 28, 2014
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4,510
Long beep and 4 short beeps afterwards. No display to monitor both by HDMI and DVI.
New Asus Sabertooth and R9 290x
 

avarice

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May 10, 2006
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Start with the basics - remove memory and video. Double check all power.

Add one stick of memory - and boot. listen for beep patterns. Shutdown.

add video - and boot. See what is displayed if anything.

Report back.

The theory here is something is not connected right - and an error beep pattern is coming up. This pattern means something - so you could lookup with ASUS or read the manual to find out what it means.

good luck.