RAM choice for ROG STRIX Z790-H GAMING WIFI

Soldato
Joined
19 Dec 2008
Posts
3,499
Location
London, UK
Hi gents, I'm just building a new gaming PC and I need a little help choosing the last component for my build.
I have got an Intel 14700KF with an ASUS ROG STRIX Z790H Gaming WIFI https://rog.asus.com/uk/motherboards/rog-strix/rog-strix-z790-h-gaming-wifi-model/
I'm trying to choose the fastest RAM possible for this motherboard that's not too expensive. I was thinking about this set..

CORSAIR VENGEANCE RGB DDR5 RAM 32GB (2x16GB) 7200MHz CL34 Intel XMP iCUE Compatible Computer Memory - Black (CMH32GX5M2X7200C34)​

Can anyone tell me if this will work with this setup? or are there better alternatives, I'm not too sure if the case times are good or not either. It says on the tech specs page
DDR5 7800+(OC)/7600(OC)/7400(OC)/7200(OC)/7000(OC)/6800(OC)/6600(OC)/6400(OC)/ 6200(OC)/6000(OC)/5800(OC)/5600/5400/5200/5000/4800.
(OC) is to overclock it right? I'm not sure what that means or if i have to do anything special to get them working or is it a specific type of RAM I require.

My current PC which i bought parts from OCuk is still going strong 11 years on, quite excited for this serious boost in performance!

Many thanks in advance :)
 
Last edited:
(OC) is to overclock it right? I'm not sure what that means or if i have to do anything special to get them working or is it a specific type of RAM I require.
The maximum stock speed of your 14700KF is 5600 for 2 sticks (link), the other speeds your motherboard mentions would be overclocking the CPU's memory controller.

You can check the QVL for what speeds have been tested, but watch this video first before you just go with the highest speed on the QVL:

You will need to enable XMP, since gaming memory will usually boot at 4800 (Corsair say that your kit boots at 4800 @ 1.1v).
 
Last edited:
The maximum stock speed of your 14700KF is 5600 for 2 sticks (link), the other speeds your motherboard mentions would be overclocking the CPU's memory controller.

You can check the QVL for what speeds have been tested, but watch this video first before you just go with the highest speed on the QVL:

You will need to enable XMP, since gaming memory will usually boot at 4800 (Corsair say that your kit boots at 4800 @ 1.1v).

Cool I'll check that out, Thanks.
So 5600mh RAM is the safe bet? and all the higher Mhz RAM you need to fiddle the settings with no guarantees. The video explaining some things but it's not filling me with confidence in what to choose.
I read a review of my motherboard and the guy with 7200mhz RAM said "activate XMP and set the memory to 7000, then it works."
Another question if i do get a higher speed set like the 7200mhz and say i can't get it working at the max speed can i just set it to 5600mhz? does that work?

What about this set, I run the GSkill RAM configurator and it said this one was highest rated one tested with my motherboard.
Trident Z5 RGB DDR5-6800 CL34-45-45-108 1.40V 32GB (2x16GB) Intel XMP https://www.gskill.com/product/165/374/1665644374/F5-6800J3445G16GX2-TZ5RK

I have 3 options at the moment, Is this GSkill set a safe compromise?

Thanks again.
 
So 5600mh RAM is the safe bet? and all the higher Mhz RAM you need to fiddle the settings with no guarantees.
You'd have to buy oem memory designed to work @ 5600 without XMP (like Kingston value or Crucial Pro) if you want to do zero fiddling, otherwise you'll still need to enable XMP. The chances of XMP failing to boot with 5600 sticks is pretty slim (I'm plucking this from nowhere, but say 5-10%), whereas 7200 I'd guess it could be around 20-40% (again, I just plucked that from nowhere). You'd need to have a scoot around OC forums, reddit, 'n such to find what the average 14th memory controller is capable of, though we have a few memory OCers on here like @JollyJamma.

Another question if i do get a higher speed set like the 7200mhz and say i can't get it working at the max speed can i just set it to 5600mhz? does that work?
It depends, some sticks have multiple XMP profiles, across different speeds, but I've seen a few reviews where they have literally just one profile. If you set the board to 5600 manually and adjust the memory voltage, it may work, but with DDR5 enabling XMP can change other stuff that you'll need help to set manually.
 
Cool I'll check that out, Thanks.
So 5600mh RAM is the safe bet? and all the higher Mhz RAM you need to fiddle the settings with no guarantees. The video explaining some things but it's not filling me with confidence in what to choose.
I read a review of my motherboard and the guy with 7200mhz RAM said "activate XMP and set the memory to 7000, then it works."
Another question if i do get a higher speed set like the 7200mhz and say i can't get it working at the max speed can i just set it to 5600mhz? does that work?

What about this set, I run the GSkill RAM configurator and it said this one was highest rated one tested with my motherboard.
Trident Z5 RGB DDR5-6800 CL34-45-45-108 1.40V 32GB (2x16GB) Intel XMP https://www.gskill.com/product/165/374/1665644374/F5-6800J3445G16GX2-TZ5RK

I have 3 options at the moment, Is this GSkill set a safe compromise?

Thanks again.

So RAM is both very complicated and simple at the same time.

It’s complicated because there are many many variables to consider but also simple because spending a lot of money on expensive RAM doesn’t get you as much performance as you’d think and even medium speed cheap RAM with boring heat sinks is fine.

Going for RAM approaching 8000MTs speeds and above is stupid unless you know what you’re doing.

Also, Don’t go with “is this brand good?”, each brand makes bad products within their product stack.

Some brands use the same exact PCB layout and memory chips at certain speeds as it’s cheaper and easier.

You need to watch Buildzoids RAM buying guide below - I’m not really a memory Overclocker any more, more of a memory enthusiast who likes buying cheap good RAM and messing around with it but I’m no expert. Buildzoid is said expert.


If I was going to buy RAM, now, I’d get a set of 2 by 24gig modules that are well priced with speeds of 6000 to 7800 that are confirmed Hynix or, right this very moment, a set of TeamGroup T-Create 2 x 16GB 6400MHz CTCWD532G6400HC32ADC01 which are extremely well priced, fast enough for most people and Hynix.

Do not think you can get another kit of whatever DDR5 memory you buy later on, you cannot.

You should only run 2 DIMM configs for DDR5 because you’ll just run into a stability nightmare.

Yes, there are 4 DIMM slots on most motherboards, ignore that and just run 2.

With regards to XMP/EXPO profiles, they are just overclocking profiles for ease of use sake that you can choose from.

The have set voltages and latency timings (mostly true as Tetras has correctly pointed out but some voltages caaaan be iffy and need to be set manually) to make peoples lives *mostly* easier but it’s correct that as you go higher, they are less likely to work.

You caaaan get RAM with a profile of 5600 from TeamGroup that can overclocking really well because it’s Hynix but for your use case, OP, you just want a good quality set of RAM modules that are a good speed for gaming or whatever that you can maaaybe play around with later on when you’re more confident.

What about this set, I run the GSkill RAM configurator and it said this one was highest rated one tested with my motherboard.
Trident Z5 RGB DDR5-6800 CL34-45-45-108 1.40V 32GB (2x16GB) Intel XMP
That’s a good kit of RAM and will work very well for your system - it’s Hynix which you want.

It’s a bit expensive for what it is (you could save £25 by going for a kit of the TeamGroup I mentioned above) but it’s going to be fast enough and since it’s been tested with your motherboard, almost certainly bug free (bad BIOS versions excluded).

NB!!! When you get your motherboard up and running, do a BIOS update and manually set your SOC voltage to 1.15v.

That all being said, I don’t know your use case but I’m assuming gaming and some productivity.

If you were going 8K video editing or extremely high res 3D modelling, I think you would have said.

TLDR; just buy a good set of RAM sticks for a reasonable price and don’t overthink it (like I did).
 
Thanks for your help guys I appreciate it a lot. I've learnt a few things about RAM with your help and researching it over the last few days.

I think i'll go for just 2 sticks of the GSkill Trident RAM... It's about the same price i had budgeted for RAM, i don't mind paying a little premium just so i know it has been tested with this new motherboard. My usage is primarily gaming with some productivity like you said, I will be reusing my 1070 Gfx card till i can save up for a new card, thinking Nvidia 5080Ti or something around there. The RAM i'm using at the moment is 1866mhz :p

I'll make sure to do those steps you mentioned too.

Thanks gentlemen.. Hopefully everything goes to plan! I'm come back to confirm. :D
 
Last edited:
Thanks for your help guys I appreciate it a lot. I've learnt a few things about RAM with your help and researching it over the last few days.

I think i'll go for just 2 sticks of the GSkill Trident RAM... It's about the same price i had budgeted for RAM, i don't mind paying a little premium just so i know it has been tested with this new motherboard. My usage is primarily gaming with some productivity like you said, I will be reusing my 1070 Gfx card till i can save up for a new card, thinking Nvidia 5080Ti or something around there. The RAM i'm using at the moment is 1866mhz :p

I'll make sure to do those steps you mentioned too.

Thanks gentlemen.. Hopefully everything goes to plan! I'm come back to confirm. :D
Hi SHAOLIN,
I just popped in to let you know that the new motherboards from ASUS like the Apex, Formula, Extreme, Dark Hero, Strix can all take 256Gb of DDR 5 Ram now with the latest Bios (1904) update and im in the middle of buying the Apex for a 14th gen cpu 14900KS and the ram i am using is the GSkill DDR 5 8200Mhz, which is qualified now to go with the XMP 3. Just adjust yr Bios first and yr good to go. They only took the 5600 in the early days, and you can confirm this over at ASUS.
GSKILL RAM.

But all the Z790 Boards with the 14th Gen can now take 256GB Ram (Bios 1904 & 904) and All 8000 Mhz.

Yr Strix can now take DDR 5 / 8000Mhz
(8 GT/s mark on the Strix Z790-A ) From ASUS Site.


Cheers Kiwi

APEX

F5-8200J4052F24GX2-TZ5RK​

Trident Z5 RGB
DDR5-8200 CL40-52-52-131 1.35V
48GB (2x24GB)
Intel XMP
 
Last edited:
Back
Top Bottom