50 minutes ago, Gary1124 said:

I Already crush anything with FSX as is but I want to overkill my RAM to do 2020 or XP 11. 

I read 16 gig recommended as medium spec for 2020 or XP 11.

You may use more than 16GB especially at 4K though the amount of stutter you get with just 16GB may not be that noticeable.  8GB is definitely too little.

To optimise ram you need to install pairs. However the performance offset you get by not using pairs is not huge, maybe 5-10% in memory transfers which might translate to a percent or two in game if that.  If building  a new PC always go with pairs as theoretically it is better, if upgrading an older PC more RAM even in odd numbers may be better - or may not. 

Rather than argue on forums about it test it with two sticks for 16Gb and 3 sticks for 24GB and see what actually works best in your PC with your particular RAM . 

The other thing is that in the bad old days of DDR2 it was also essential you bought matched pairs of ram or you got timing issues.   Not so much anymore with DDR4, mixing and matching RAM with similar timing will usually work (at the speed of the slowest stick) UNLESS YOU ARE OVERCLOCKING in which case stick to matched sets.

 

 

Edited January 20, 20215 yr by Glenn Fitzpatrick

My PC came in June. Came with the 8 gigs. Ddr4 3000. I just downloaded the Ryzen tuning app. I'm going to go with as needed overclock and check how it goes. Already have the Radeon application. GPU  moderately overclocked.

17 hours ago, Gary1124 said:

I will have to research XMP/DOCP when the time comes to know how to adjust

dont need to research that topic, just enable it.  your RAM will run slow if you dont.

14 hours ago, Gary1124 said:

Soon 24 gig ddr4 3000

make sure you will have either 2 sticks or 4 sticks installed otherwise you will be running single channel which is not good.

1 hour ago, Brandon01110 said:

make sure you will have either 2 sticks or 4 sticks installed otherwise you will be running single channel which is not good.

 

if your building a new machine good advice, among other things matched sets tend to be cheaper, and there is a very very slight (barely noticeable) performance improvement.

If your upgrading, throwing away a single stick of perfectly good ram because it is not dual channel is just plain silly.  You get a lot of internet advice to do that but it is not based in any real world facts. My guess is people have had a single stick of really slow ram that is effectively nerfing the new ram and blamed the poor performance on single channel.

Gamers nexus looked into dual versus single channel thing a few years back and found almost no difference in real world situations.

https://www.gamersnexus.net/guides/1349-ram-how-dual-channel-works-vs-single-channel?showall=1

 

TL&DR

keep an old single stick of really slow ram BAD it will slow down your new ram

keep a perfectly fine fast single stick - not an issue single channel will not effect you that much, you will barely notice a difference if at all

 

One thing I think is worth mentioning - MSFS is extremely hard on your CPU and GPU and based on all reports I have seen, it does a great job of revealing even the slightest instability in an overclock.

I'm not a game programmer but I assume a lot of games load all of their textures into the graphics card when the 'level' loads and then the game runs and uses them.

With MSFS we are constantly streaming new textures, photogrammatry data, etc down from the internet which then gets transferred over to the graphics card basically constantly while the CPU and GPU is running at high load displaying whatever just whizzed by the aircraft.  One little blip anywhere in the system and you'll get a crash - there is a lot more data being streamed around the system then other games.

I'd be very careful about any overclock with MSFS.  There have been several threads where people blamed instability on the sim only to have it go away when reset to stock settings, or even when people have backed off an older GPU that has a lot of 'miles' on it very very slightly from its factory max clock (especially for the factory models that are already pushing the speed limits).

I don't begrudge anyone trying to get the most of out their hardware but at the first sign of any issue, going back to stock setting is a must.

Edited January 21, 20215 yr by marsman2020

I just checked the Game Turbo mode which automatically throttles the clock as needed. I don't know near enough to manually set anything really.

I remember my old AMD. It was installed in a Gigabyte Motherboard and it came with a tuning application. On overclock it used to put PC into thermal shutdown in the summer until I made a flex duct ventilation line directly from the air conditioning. This was around 2004. Long time ago. That's why I use automatic profiles today.

I had AMD back then too, from 2001-~2007.  Pentium 4 was a real snoozefest compared to the Athlons, until Intel came out with Core 2 Duo.  I jumped at the chance to use AMD again once they became competitive.  Now if I could only get my hands on a 5950X as an upgrade....

On 1/20/2021 at 6:40 PM, Glenn Fitzpatrick said:

Gamers nexus looked into dual versus single channel thing a few years back and found almost no difference in real world situations.

Thank you for the information. It seems the article you referenced:

Published March 08, 2014 at 9:22 am

 

Processors have changed quite a bit since then, I will have to look into if that matters or not.