settings for current on msi z270a pro

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dontspamme67

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Jan 18, 2018
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can you change cpu iccmax in bios on a msi 270a pro motherboard? I cannot find this setting and my 7700k needs more current to run stable.

i have searched through the bios and the manual for the motherboard and don't see any options mentioning current, just voltage adjustments. I find it hard to believe they would allow you to mess with voltage, but not current...
 
Solution
Darkbreeze
There are not ever any "current" adjustments on ANY motherboard that existed, ever.

There are only ever "voltage" adjustments available. Your CPU does not NEED more current to run. The 7700k was intended for use on that motherboard using the stock configuration, no increase in voltage or other changes should be necessary unless you are overclocking/increasing the core multiplier beyond the stock configuration.

I would suggest that you try unplugging the unit from the wall, removing the cmos battery for several minutes, reinstalling the cmos battery, plugging the unit back into the wall, power up, enter the bios and set it to the optimal default or setup default configuration and leave it there. It should run perfectly fine.

If it...
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Darkbreeze

Darkbreeze

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There are not ever any "current" adjustments on ANY motherboard that existed, ever.

There are only ever "voltage" adjustments available. Your CPU does not NEED more current to run. The 7700k was intended for use on that motherboard using the stock configuration, no increase in voltage or other changes should be necessary unless you are overclocking/increasing the core multiplier beyond the stock configuration.

I would suggest that you try unplugging the unit from the wall, removing the cmos battery for several minutes, reinstalling the cmos battery, plugging the unit back into the wall, power up, enter the bios and set it to the optimal default or setup default configuration and leave it there. It should run perfectly fine.

If it does not, then there is either a problem with your windows installation or some kind of hardware fault/problem going on. Possibly a faulty motherboard OR a bent pin on the CPU socket area of the motherboard. Maybe a memory/RAM issue. You will not ever, now or any other time, on any motherboard, find a "current" configuration setting. In fact, in 30 years or more, this is the first time I've ever even heard somebody say anything like that.
 
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dontspamme67

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Jan 18, 2018
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:eek:

ok thanks, i was wondering because i have it oc'd to 5.1 ghz and it seems fine, but when i ran intel xtu to stress test it it kept current limiting unless i changed the iccmax in the application's settings. I don't like using an app to oc and had never seen a current adjustment on the bios of any of my computers, was assuming this was something on a more fancy motherboard, glad to know i don't need to mess with it.
 
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Darkbreeze

Darkbreeze

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Yeah, no "current". There are however MANY different voltage settings, in your bios as well as others, that affect both performance and stability.

The core voltage, memory voltage, system agent voltage, VCCIO and some others like adaptive voltage are all factors for stability and for thermal considerations.

I would NEVER overclock using any automatic setting or software utility. Overclocking, IMO, should always be done through the bios settings. These two sources should give you everything you need to know to get a good manual overclock through the bios settings. Additionally, if you don't have a pretty good aftermarket CPU cooler and plenty of case cooling by way of the case fans, I would totally avoid overclocking at all. Plus, the MSI Z270-A Pro isn't a terribly great motherboard for overclocking since it only has a 4+2 power phase. Any problems resulting from overclocking are highly likely to at least be partially, if not totally, related to that limitation.

https://www.tweaktown.com/guides/7481/tweaktowns-ultimate-intel-skylake-overclocking-guide/index.html


http://www.overclock.net/t/1570313/skylake-overclocking-guide-with-statistics
 
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Rogue Leader

Rogue Leader

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5.1 ghz? You need a significantly better motherboard (Think ASUS MAXIMUS), a large water cooler, and a lot of manual tweaking to get that working. Thats just never going to be stable.
 
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Darkbreeze

Darkbreeze

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Agreed. In fact, the whole currently common misconception, anybody can have a 5Ghz overclock is STILL as improbable as it was when they were saying anybody could do 5Ghz on air with Devil's canyon. In most cases, unless you get a very good sample that can achieve 5Ghz with lower than normal voltage, it's not even remotely a long term solution unless you don't mind replacing hardware every two years.

On Kaby and Coffee, perhaps even LESS so, as I've seen indications that there are significant issues with VRM throttling on MOST of the motherboards, even the high end Godlike and Aura units.

Can you do it, sure. Can it be "stable", sure. Will it last as long as with a slightly reduced configuration, no, it will not.
 
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dontspamme67

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Jan 18, 2018
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update:

found the current settings, they are hidden in a different tab called "cpu features" i think, adjusting there does cause xtu to show a change in what it calls iccmax so it has to be the same setting.

still running at 5.1ghz with no problems and now no throttling issues at 1.33 volts. will get through prime95 overnight with no failures and no issues on xtu stress test, as well as no crashing or freezing during games (even fallout 4, which normally crashes due to mods :0 ). temps never reaching more than about 60 with normal use and 82 was the highest i saw during stress testing of any kind.

was able to get it to behave at 5.2 ghz with 1.39 v under the same testing, but i'm happier with the lower temps at 5.1 c:
 
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Darkbreeze

Darkbreeze

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Wow. Just goes to show you either learn something new every day or miss a damn good chance to. I've never even considered the ICCMAX setting or used it, but it's clearly been around since like 2004. Not sure that I personally would mess with it much as the information I see on it claims that ICCMAX settings are default configured per motherboard on what the physical limitations of THAT board can withstand over the long term, and going outside those settings could potentially create longevity issues since current/amperage has a much greater and more immediate effect on components, traces and wiring than voltage does, but if it works for you then more power to you.

I've never found there to be a need to change ICCMAX settings in order to have a stable, reliable, long term overclock, and I suspect that setting is likely intended for use more by those configuring theoretical, competitive or short term high OC configurations than for those who intend to use it that way full time. I could be wrong, as clearly I was wrong about not being able to change the configuration settings for current to begin with.

Luck to you.
 
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