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Rampage IV Black Edition + 4930k: 1.6v vcore spike on crash restart.

John_Au
Level 7
Hi everyone,

I was recently having a go at pushing my 4930k a bit faster on some new info i had read (on this forum i think).

I've been using the Bios and ROG Connect to fiddle with voltages and have been monitoring voltage fluctuations with the rog connect's diagram function.

Yesterday, while testing with prime 95 small ffts, the motherboard shut itself off (possibly to protect vrm's?) and then restarted, sending 1.6v VCore before settling back down to 1.3v-ish.

Is this dangerous, and will future crashes like this drastically reduce the life of the CPU? or is the nano-second of high voltage irrelevant?

I can post a picture of the graph if need be, but basically, Vcore jumps from 0 to 1.6v and then straight back to 1.3v within the space of almost exactly 1 second.


Cheers guys
John.
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4 REPLIES 4

UltraNEO_
Level 11
1.6v vCore... Well if you read this thread, you'll know the CPU's limitations, at least you'll be more aware.

http://rog.asus.com/forum/showthread.php?49676-Max-Voltage-on-a-i7-4930K
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John_Au
Level 7
Hi UltraNEO, i don't think you quite understood what I am saying.
I didn't set the vcore to 1.6, and none of my settings would allow a vcore that high, heh.

Please read my post again.

UltraNEO_
Level 11
I know you didn't set the vCore to 1.60. You did however ask "Is this dangerous, and will future crashes like this drastically reduce the life of the CPU? or is the nano-second of high voltage irrelevant?"

And the Intel spec suggests it's fine all the way upto 1.60v. I therefore wouldn't have thought, a minor voltage fluctuation of 0.3v will affect the cpu's long term life. It's not like you're running it at 1.6v constantly 24/7 without adequate cooling.
ASUS ROG RVIE Encore| i9-10940x | Dominator Platinum 128GB 3333 MHz | EVGA RTX 2080 Ti SLI | Samsung 970 Pro 1TB NVMe (x3)
WD Black 4TB | WD Black 6TB x2 | EVGA 1600 P2 | CaseLabs SMA8 | Custom Water Cooling | HWLabs Black Ice Nemesis GTX 560
XSPC RX 480 v3 | XSPC D5 Vario x2 | EK Blocks | EK-RES X3 400 | BitsPower Fittings | GentleTypoon 1850 x12 | Corsair SP140 x8 | Lamptron CM615

Twitch.tv/MsNikita | Twitter.com/MsNikitaTV | Instagram.com/MsNikitaTV | Reddit.com/r/MsNikitaTV

Jollydet
Level 8
1.6v is NOT safe for ivy-e under anything except ln-2, UltraNeo intel does not ever suggest 1.6v as safe, VID range is not maximum safe voltage, even if is only seeing 1.6v for a split second, i am surprised more people have not chimed in here. i will be doing some testing on my own board, hopefully this is an ROG connect Bug, are you getting the same readings with the oc panel? time to break out the Fluke multi..