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IMC Voltage (VTT)

I'd reccomend 1.15 max on non-exotic cooling, 1.2 if your using sub-ambient cooling. Some guides will say 1.2 max on air but I've seen a few incidents that leaves me convinced <1.2 is a better idea if you want the CPU to last.
 
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Rroff said:
I'd reccomend 1.15 max on non-exotic cooling, 1.2 if your using sub-ambient cooling. Some guides will say 1.2 max on air but I've seen a few incidents that leaves me convinced <1.2 is a better idea if you want the CPU to last.
Click to expand...

Going a bit off topic here but I am rather confused, I recently replaced my PSU for a corsair RM 750 & increased my memory from 1600mhz to 2133mhz (2133mhz is stock). I have had one GPU driver crash and my game will randomly shut off sometimes but with know error...

Is this just me needing more GPU voltage because its a new PSU or do I need more VTT because of the memory speed increase?
 
Only way to know for sure really is to put RAM back to 1600 and see if the problem goes away.

Have you tried running memtest to see if your RAM is stable with those settings?
 
Rroff said:
Only way to know for sure really is to put RAM back to 1600 and see if the problem goes away.

Have you tried running memtest to see if your RAM is stable with those settings?
Click to expand...

Funnily enough I have not ran memtest at 2133mhz yet so ill get on that tonight, is it better to do it in DOS or within windows?
 
Use memtest on disk, download the iso and burn it to cd/dvd, set 1st boot device to your optical drive and run it that way.
 
DOS version is better - it can't test memory currently in use by Windows, etc.

If you have a UEFI BIOS, etc. you can just stick it on a USB disc and select it from the boot over-ride menu in the BIOS without messing about now.
 
Rroff said:
DOS version is better - it can't test memory currently in use by Windows, etc.

If you have a UEFI BIOS, etc. you can just stick it on a USB disc and select it from the boot over-ride menu in the BIOS without messing about now.
Click to expand...

Yeah I normally just use a USB stick because it makes life simple. :)
 
how much memory are you running?

vtt is usually fine on stock 1.05v unless your using more than 8gb of ram
 
wazza300 said:
how much memory are you running?

vtt is usually fine on stock 1.05v unless your using more than 8gb of ram
Click to expand...

I am using 16gb and VTT is set to auto (1.141v). But I will note for some reason I had VTT on 1.104v and when I set to auto it is now 1.141v.
 
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@wazza300

One question, I have noticed when i enable the XMP Profile the only thing it changes is the voltage from 1.5v to 1.65v, I have to change from 1600mhz to 2133mhz and the timings manually. There is also a option that is called Dram Reference clock that is set to auto all the time, what I am wondering is am I meant to change this? (has two options 100mhz/133mhz)

Another thing is if I set Dram Voltage to Auto it sets 1.665v instead of 1.650v, is this telling me it needs more voltage to run?

*Note*

I always had to change the settings manually after selecting the XMP Profile but never really noticed the Dram Reference option until now.
 
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Idk what that is? Don't have it on my gigabyte z77 board,but my ram doesn't support xmp,do you have more than one xmp profile? One for 1600mhz and one for 2133mhz
 
No I only have one XMP profile & Auto. I ran memtest last night for 11 hours which resulted in 5 passes with no errors.
 
what board?

depends really latest usually is the best,can flash back to any bios version on gigabyte,not sure you can do that on asus
 
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