Cpu over-voltage error prompt on boot HELP!

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Cagruntas

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Aug 22, 2016
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I logged on my PC and sudden an error saying CPU over voltage error and as sson as the bios poped up I say the core-voltage jump from 1.11 to 1.7 then back down so I immediately turned off the system.

specs -
motherboard - asus x99 sabertooth
PSU - corsair RM 850i
CUP - i7 5820k
 
Solution
Ironsounds
Hello... your CMOS reset will put things back to defaults... this is where all your BIO's custom settings are stored.... and Yes, a Power surge, can effect the 1's and 0's in a system. B / Right now either a Setting or Hardware is screwed up... And will take you 5 mins to find out?
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Cagruntas

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Aug 22, 2016
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I had a 4.4 Ghz OC on it a t 1.265 V but it was stable, I ha a power outage a few days ago I don't know if that messed things up :|
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... your CMOS reset will put things back to defaults... this is where all your BIO's custom settings are stored.... and Yes, a Power surge, can effect the 1's and 0's in a system. B / Right now either a Setting or Hardware is screwed up... And will take you 5 mins to find out?
 
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Solution
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Cagruntas

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Aug 22, 2016
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Hey well my motherboard doesn't have a cmos battery but the manual showed me some jumpers I can use to reset it,I did as the motherboard manual said and everything seems to be very stable right now, I haven't gotten the error again and my CPU temperatures are at mid 20 to 30 degrees Celsius now ,I think it maybe fix but I'm not sure if I should wait a while to reapply the over-clocks I had.Do you know any good program I can use to monitor the voltage? Well that records it so I know that it doesn't spike up as it did before.But so far it's running as usual.
 
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Cagruntas

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Aug 22, 2016
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I'm literally sitting and looking at the voltages right now and so far it hasn't cross 1.1 V ( there is no over clock right now) so everything seems to be fine.The temperatures at low 30s and just above mid 20s still,although I''m very worried if that voltage spike would have damaged my CPU in anyway, it's a bit frightening to be honest,I'm kinda scared to overclock it again lol :| :|
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... CPU's are very tuff and as you saw, the BIO's was very quick to stop it... what was your method of OC manual or APP? I trust manual only B )

I find it hard to believe you don't have a battery back up on that board? there's got to be one under all that plastic... a fresh battery is important to keeping the 1's and 0's the same between power up's, You can get them 2for$@$store... same battery in typical Auto remote key entry.
 
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Cagruntas

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Aug 22, 2016
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I overclock manually in the BIOS.Well I built this system less than 1 year now so I don't think the battery is out...I will have to dismount the Armour and see if it is there because the manual/google had nothing if there is a battery, it just said that there is a jumper I can use and i guess it worked,but I think I'll monitor it a while before I put back an over clock on it..

You have anymore advice for me ?
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... Not really... are you water cooling the CPU? then you might need an additional fan blowing on your CPU caps and regulators by the CPU socket... they are the devices that control those voltages, and prone to overheating with a OC. A water block will remove Air flow to them VS a CPU cooler/Fan.

if the problem continues... change that battery with a fresh one... as stated before... that it's purpose. B )
 
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Cagruntas

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Aug 22, 2016
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Yeah I'm using a corsair h115i to cool my CPU but also I am using the corsair 540 air case and my motherboard has a fan dedicated for pushing air by the Vrms,I have also two 120 mm fans intake in the front and a 140 mm as exhaust in the back so it's getting a lot of cooling I believe.If the problem ever comes up again I'll be sure to change the cmos battery once I find it on this board :|
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... GOOD... you have additional air flow with the water block...
Look at imgs of other MB's... typically the batteries are all in the same location... in between your MB PCI/PCIe slots... your MB has this addition Plastic shield over all the components... it should be removable, but not without removing most installed component B o.
 
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Cagruntas

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Aug 22, 2016
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Yes I do have a lot of air flow with no restrictions so I know that's good for sure.I'll remove the sheild and see soon.So far the core voltage hasn't past 1V since monitoring it and the error hasn't poped up at all since I cleared the CMOS via the jumpers.No problems so far so things look up. I'm going to monitor it a few days before i do anything though
 
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Ironsounds

Ironsounds

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Jul 31, 2011
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Hello... Yes, a cautious approach would help build your trust at this point...

in Older MB's/devices shorting the CMOS jumpers will also short the backup battery... they use a MB capacitor for battery replacement, That gives you time to replace a battery without data loss... this is typically in a lot devices. B / Removing the battery first was always the order of the procedure... makes sense?

But maybe they have changed the circuit design these days, when they have added push buttons? and procedure on some newer brands/models. I have trained my mind and actions to do this first always, with all MB's... without a schematic you don't know what you got for a circuit.
 
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Cagruntas

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Aug 22, 2016
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yeah that makes a lot of sense.The motherboard is very new,only came out mid last year.I think I would contact asus directly via customer support to find out where the battery is, I really don't want my system to be damaged at all :|

 
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