2133 is most likely what your going to have but I'm not 100% sure if that's the default. There's a 533 difference:-

Overclocking the pc causes the CPU to take more power and generate substantially more heat.
http://smallbusiness.chron.com/overc...ood-71687.html

BIOS look good-

Are all 4 DIMM slots full of sticks of RAM?

No, only two of the four are currently used.

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Ok-

In that case you could install 2 more sticks of RAM if you wanted to.
That may help if you really want to overclock.

How many gig's is one stick?

Here's an article on overclocking RAM.
http://www.tomshardware.com/reviews/...uide,4693.html

I think from what I've read online that you can overclock your monitors too.
Just not sure how:- Sorry. Maybe other members know how.

Just be careful because if you push things too far you can make your system unstable.
IF the system crashes or refuse's to boot, that's a red flag that's an indication that you need to dial it down.

https://www.gizmodo.com.au/2017/04/w...-overclocking/

I never really intended to overclock anything. I value stability over speed any day. Someday I might try to play around with a little overclocking and that 2666 ram, but that would probably just be playing so I could learn a few things. This computer build is significant overkill for the job it will be required to do, no overclocking is necessary.

BTW, the motherboard on-board graphics (1xDP, 1xHDMI, 1xDVI) easily handles three simultaneous monitors at 1920x1200 each. Actually, I think it is the CPU that provides the "on-board" graphics these days. So I guess it's more correct to say that the combination of the MoBo and the i5-8600K CPU provide the three monitor functionality. But I did find that to make the MoBo handle three monitors simultaneously, I had to install drivers from within Windows. I do not know if ASUS provides drivers to enable this three monitor functionality for Linux, or if some kernel or 3rd party stuff will do it.

Multi-monitor setups can be a little quirky. I have a couple of Linux desktops with dual monitors, and they work for the most part, but there definitely is some strange behavior at times. Ditto for a Windows dual monitor setup I sometimes use at work. I installed some Windows software today, named "Display Fusion", that is really top notch for multi-monitors. It adds so many features and (so far) has functioned flawlessly. Seems like a perfect match for multi-monitors in the Windows world. I wish there was something like it for Linux. I'll have to do some searching now...

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Once you go past one monitor, you start to find all the bugs in the drivers. It's one reason I favor AMD cards with the open drivers. You have more options in general for resolutions, color depth, and they're less buggy in non-traditional setups. At least when it comes to 2D work loads.

I'm totally with you on that.

That's great news.
I'm not sure if all of the new CPU's come with integrated graphics or not. I haven't kept up on the technology for that lately.

Looks like Intel is-
https://www.intel.com/content/www/us...rocessors.html

Glad to hear things are going well for you.
Bet the person you are building this machine for is encouraged and happy.
Good Luck to you haertig.

As I understand it memory over a vertain speed can be used by a "profile" on the motherboard -- it's not overclocking but just slightly outside of the original, now older, agreement of speed support. I get this, mailny, from the Linus Tech Tips YouTube channel (therew are others which back this up).