Question ASUS Crosshair V no boot black screen

Jul 31, 2019
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build my pc in 2012, after many year use, Last week my pc after sleep and wakeup got blackscreen! and i restart my pc, then no more boot is dead!!! i order new bios, install same no boot. no any picture, or letter in my screen, i see my motherboard Q-led CPU is red!!!!! all other led on motherboard is green. so i order new CPU and install and still not work, i order new motherboard and work. now i try to repair my motherboard, i use multitester test voltage on ProbeIt, without CPU cpu voltage is 0.86 and CPU/NB is 0.83, with CPU cpu voltage is 1.01v and CPU/NB is 1.24v. Normal voltage is 1.36875v. But WHY all my Onboard LEDs is Green??? thanks









 

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