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AnsweredX99 board crash?

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Theophilus20
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2021/09/19 21:15:34 (permalink)
What is the led marked 5VSB_LED ? It is below the stick of RAM on the right side next to the mounting screw.

I had a crash today. Can't get any thing to power on. But, when the PSU is connected to power, and the sw is on, that LED blinks along with a red one right below the ATX 24 pin power connector. They both blink at the same rate, and at the same time but fairly slow.

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Theophilus20
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Re: X99 board crash? 2021/09/19 22:04:16 (permalink)
It came back on after leaving it off for a bit. but it was absolutely unresponsive till it had been off for a while.
This is the second tome it has done this in the past few months.

(Sys 2)
HAFX * EVGA X99 Classified * I7 6850k (@ stock for now) * EVGA 980Ti Classified * 32 GB Corsair 2666 * Samsung 850 EVO SSD * Seagate 2TB Hybrid drive * EVGA Supernova 1000w P2 * Win 10 pro 
(Sys 1)
HAF 932 * EVGA X58 Classified 760 * i7 950 * 12 Gig GSkill 2133mhz RAM *
                 Samsung 830 SSD * Seagate 1TB SSHD * EVGA GTX 770 Classified *
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HeatWare http://heatware.com/eval.php?id=72049
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Theophilus20
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Re: X99 board crash? 2021/09/19 22:04:16 (permalink)
The blikning only lasts for about one or two min till everything is de-charged.
Ive just never seen it blink before when pulling the power.
post edited by Theophilus20 - 2021/09/20 06:45:39

(Sys 2)
HAFX * EVGA X99 Classified * I7 6850k (@ stock for now) * EVGA 980Ti Classified * 32 GB Corsair 2666 * Samsung 850 EVO SSD * Seagate 2TB Hybrid drive * EVGA Supernova 1000w P2 * Win 10 pro 
(Sys 1)
HAF 932 * EVGA X58 Classified 760 * i7 950 * 12 Gig GSkill 2133mhz RAM *
                 Samsung 830 SSD * Seagate 1TB SSHD * EVGA GTX 770 Classified *
            Creative X-Fi Fatality Pro *  Cooler Master V8 CPU Cooler * Corsair HX1000 *
                                            Samsung SyncMaster 2233
HeatWare http://heatware.com/eval.php?id=72049
Optimism is No Replacement for Experience[/size
#3
bob16314
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Re: X99 board crash? 2021/09/19 23:12:46 (permalink) ☼ Best Answerby Cool GTX 2021/09/22 18:23:10
+5VSB (Volts StandBy) is the standby power the motherboard recives from the PSU as long as it's plugged in/switched on and the LED should be on steady..+5VSB should steadily range anywhere from 4.75 - 5.25 volts and you can check it, or have it checked, using a Digital Multimeter (best) or a PSU Tester..+5VSB keeps the mobo 'alive' and ready to boot up when your PC is shut off.

Almost certainly the PSU has a problem, try another one if you have or take your PC to a repair shop..You could try reseating the 24-pin ATX power connector on the mobo and PSU (if modular) a few times..Others have reported an issue with the I/O shield, you can take the mobo out and try it..You can search "5VSB LED Blinking" and get some hits.
 
If the +5VSB is out of spec, the PSU is an issue..If it's not is out of spec, the mobo may be an issue..It just boils down to testing/checking things now and trying another PSU.

See How do I test my power supply? in the EVGA FAQs.
post edited by bob16314 - 2021/09/19 23:14:16

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#4
nighthawkrmx
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Re: X99 board crash? 2021/09/22 17:20:22 (permalink)
I would agree it sounds possibly power related. I would try testing with another power supply, perhaps borrow one from a friend.
 
 
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