ASUS X99 Motherboard Series - Official Support Thread

[Raja@ASUS]

Uh oh - my X99 Deluxe is refusing to boot. Was running XTU's inbuilt stress test at 4.5 core, 4.2 uncore, 1.3V CPU 1.3V cache and machine suddenly shut down. RAM not yet touched. Tried rebooting and machine flicks on for a microsecond before the an audible OCP 'click' from the PSU.

Tried pulling the PSU cable and letting caps discharge for about 15min, tried booting again and machine will power on and stay on but noone's home - none of the POST debug LEDs are lighting and the board is stuck on POST code '00'. Have tried clearing CMOS several times and removing everything but CPU, RAM and one GPU with no change.

Any ideas folks?

Sounds like the PSU OCP tripped due to current demand. You were probably pulling over 30 amps from EPS12V Best case scenario is that its just your PSU. Worst is it took the board and CPU with it when the shutdown occured. Ordinarily that should not happen - if OCP trips the board should POST again and maybe issue an anti surge warning after the rail went out of spec (due to shutting down). The VRM can more than handle the full load XTU would have been generating at that point.

If the PSU is clicking off now I would not try to power up that rig any more. You'd be best advised to RMA all three items. If you are USA based send me a PM if you want to RMA directly with us. If you're getting 00 and the PSU is staying on then it could be dead CPU and not the other two. In these situations if one component in the chain fails, it can knock out all three.


Have one guy on ROG that killed his 5960X while running 1.47 Vcore and 2.2VCCIN on chilled water. Not sure what he was running yet. Board was fine.