PC Building Simulator

PC Building Simulator

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RAM Freq. on incoming PCs
Why is it that every single PC I receive which has any RAM of a speed more than 2133Mhz is running at 2133Mhz when first booted...?

It'd be one thing if there were instances where someone says their friend or family member fiddled with their computer and it became slower, so they'd like you to check and you'd find the RAM was running at below-standard speed, but every single computer I've received so far which was using 2400Mhz< RAM was running at 2133Mhz upon first boot.
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Showing 1-15 of 72 comments
Turbo Feb 7, 2019 @ 10:57am 
Because that is the default RAM speed for the given board. Anything higher than that is considered overclocking, regardless of what the rated RAM speed is. To clock the RAM at its rated speed, you have to enable the XMP profile for it, or manually overclock it. This is exactly as it is in real life as well.
Brittimus Feb 7, 2019 @ 11:02am 
Originally posted by Turbo:
Because that is the default RAM speed for the given board. Anything higher than that is considered overclocking, regardless of what the rated RAM speed is. To clock the RAM at its rated speed, you have to enable the XMP profile for it, or manually overclock it. This is exactly as it is in real life as well.
Well there you go. That makes perfect sense
ShirtyGamer Feb 7, 2019 @ 5:02pm 
That would've made sense if boards like the Mortoni H170 Tech Plus wasn't listed as having support for 2800Mhz, then a computer comes to me with that board and a stick or two of Team Force DDR4 2400Mhz (or in this example's case, G.Skill 2400Mhz memory), and then still be set to 2133Mhz when I boot it. I've had one of the A360 Mortoni boards come to me also fitted with one or two 2400Mhz sticks which was also set to 2133Mhz out of the box. That board supports up to 3600Mhz.

I'd make a video to show this, but my real-world internet's upload speed is limited to a paltry 256Kbps right now (half-working countryside Afrinets, joy of my freaking life), so I'd rather you go test this in your own game and see whether the same happens for you.

https://steamcommunity.com/sharedfiles/filedetails/?id=1648278188 https://steamcommunity.com/sharedfiles/filedetails/?id=1648278649
https://steamcommunity.com/sharedfiles/filedetails/?id=1648279176
Last edited by ShirtyGamer; Feb 7, 2019 @ 5:02pm
Brittimus Feb 7, 2019 @ 5:03pm 
Originally posted by theO:
That would've made sense if boards like the Mortoni H170 Tech Plus wasn't listed as having support for 2800Mhz, then a computer comes to me with that board and a stick or two of Team Force DDR4 2400Mhz (or in this example's case, G.Skill 2400Mhz memory), and then still be set to 2133Mhz when I boot it. I've had one of the A360 Mortoni boards come to me also fitted with one or two 2400Mhz sticks which was also set to 2133Mhz out of the box. That board supports up to 3600Mhz.

I'd make a video to show this, but my real-world internet's upload speed is limited to a paltry 256Kbps right now (half-working countryside Afrinets, joy of my freaking life), so I'd rather you go test this in your own game and see whether the same happens for you.

https://steamcommunity.com/sharedfiles/filedetails/?id=807419001
https://steamcommunity.com/sharedfiles/filedetails/?id=1648278649
https://steamcommunity.com/sharedfiles/filedetails/?id=1648279176
That's the maximum speed it supports but it's not the default speed for the board.
ShirtyGamer Feb 7, 2019 @ 5:08pm 
Oh, and to head off "the i3/i7 you have access to are limited to that", again, the A360 system's memory speed was set to the same, and that one had the Ryzen 5 1500X in.
Brittimus Feb 7, 2019 @ 5:11pm 
Originally posted by theO:
Oh, and to head off "the i3/i7 you have access to are limited to that", again, the A360 system's memory speed was set to the same, and that one had the Ryzen 5 1500X in.
CPU's are not limited to RAM speed in PCBS. RAM speed is only limited by the stability of the RAM itself and the maximum speed the board supports. CPU speed is also limited by the whether or not it is unlocked and can be overclocked and its own stability. I'm not sure what you're not understanding from Turbo's post above. Either way it may help if you purchase the game. Right now your profile says you don't own it.
ShirtyGamer Feb 7, 2019 @ 5:11pm 
Originally posted by bratliff121:
That's the maximum speed it supports but it's not the default speed for the board.

Not sure I'm getting what you're saying. Yes, it's the max speed it supports, but no, last I checked motherboards will auto-configure their speeds and, again, I would assume if a system is built for someone at least ONE bright peanut out there will have the sense to go make sure the memory is running at spec when fitted to a board which more than covers that RAM's spec in the first place.

Not everyone is Tim's uncle who seems to have an aversion to using TIM. (see what I did there?)
ShirtyGamer Feb 7, 2019 @ 5:13pm 
Originally posted by bratliff121:
I'm not sure what you're not understanding from Turbo's post above. Either way it may help if you purchase the game. Right now your profile says you don't own it.

What I'm not understanding of it is that it runs counter to how things do actually work in the real world. Show me a motherboard manufactured after 2008 which doesn't have auto-configuration of parameters like memory clocks and timings to match the RAM's spec.

As for me not owning the game, I'm trialing it via my BIL's shared library to decide whether I'd buy my own copy or not, and right now I can say I'm not impressed remotely enough to do so...
ShirtyGamer Feb 7, 2019 @ 5:17pm 
Originally posted by bratliff121:
CPU's are not limited to RAM speed in PCBS

Regarding this bit, by the way, the i3-6100 and i7-6700(K) as available at the level I've reached so far in the game, in the real world, only officially support up to DDR4 2133Mhz. You can overclock the IMC, sure, but their official (and thus highest automatically configured speed) is just 2133Mhz.

Which is why I brought that up.
Brittimus Feb 7, 2019 @ 5:24pm 
Well all things considered, it's a game. It's not ever going to be a 100% accurate recreation of the real thing. They've made lots of improvements maybe you'll get this fixed too.

Originally posted by theO:
As for me not owning the game, I'm trialing it via my BIL's shared library to decide whether I'd buy my own copy or not, and right now I can say I'm not impressed remotely enough to do so...

My only advice then would be to quit playing it. I honestly don't think anyone's feelings will be hurt if you quit borrowing your BIL's game. Maybe his, but you know him better than I do.
ShirtyGamer Feb 7, 2019 @ 5:41pm 
I'm more concerned about people who might end up buying the game only to encounter an issue like this one which causes them unnecessary frustration, possibly enough so they might stop wanting to play altogether and may be outside of a refund period.

It happens that there will be systems with funky settings coming in, which is precisely why I as someone who services/repairs/builds computers for people check the BIOS on every system I'm booting before getting to the OS and noticed this issue. So I could appreciate it happening if it had a reason.

But it doesn't happen /all the time/. Especially not since, again, most if not all modern motherboards will auto-configure RAM speeds etc - meaning that A360 + Ryzen 1500X system with the 2400 sticks should never have been at 2133 unless there were a scenario where some friend/family member or even the owner fiddled with settings, 'making the computer slower than it used to be' or something.

I'll revisit the game some weeks/months from now maybe. If the performance issues at least could be addressed I wouldn't be as extra-aggravated at the game as I am right now.



//Also devs, if you're reading this, on the player's own computer - cascading windows yo. Please. Also maybe give the option to increase the 'effective' DPI of the computers' elements (as a game setting) so one can get more done on the computer screen at once...

Maybe also a purchasable tablet or printer so one can have more detailed information about the system you're working with, including the customer's message or one's own notes about the system which are visible while you're working on it. Having to shuffle between the system I'm working on and my own PC's mail to find the appropriate mail again gets to be quite frustrating, and some people out there (like me) have goldfish memory for things like whether someone wanted white or plastic cabling put in, or no change to cabling.
Turbo Feb 7, 2019 @ 7:00pm 
Originally posted by theO:
Show me a motherboard manufactured after 2008 which doesn't have auto-configuration of parameters like memory clocks and timings to match the RAM's spec.

No motherboard IRL will auto configure about their rated speed unless you go in yourself and manual set an XMP profile or manually OC it, period, point-blank, no ifs, ands, or buts. I'm not sure how that's hard to understand.

The absolute maximum you'll ever see a board configure to is 2666 MHz (which higher end mobos in the game do indeed use). This is because this value is the maximum non-OC speed dictated by the international memory standards for DDR4.

Now, lower end boards and/or older boards (like the H170) often used 2133 or 2400 as their default RAM speeds for numerous reasons, mostly which were cost saving measures.

I don't know where you got this idea that the BIOS would auto-configure RAM up to 3200 MHz, or whatever, but it's completely false. Anything above the board's stock rated speed (whether it be 2133, 2400, or 2666) is considered an overclock and will therefore always require the user to go in and set manually.
Last edited by Turbo; Feb 7, 2019 @ 7:01pm
ShirtyGamer Feb 7, 2019 @ 11:49pm 
Originally posted by Turbo:
No motherboard IRL will auto configure about their rated speed unless you go in yourself and manual set an XMP profile or manually OC it, period, point-blank, no ifs, ands, or buts. I'm not sure how that's hard to understand.

I'm going to assume you meant to say 'above', not 'about'. I'm not talking about auto-configuring above, I'm talking about auto-configuring at the RAM's rated speed on a board+CPU configuration which supports it.

As I already pointed out, the boards in the game are listed as supporting greater frequencies than the RAM installed in the systems. "I'm not sure how that's hard to understand".

Virtually all motherboards' DRAM frequency and DRAM timing settings are both set to automatic, along with all voltages and any other CPU-related settings; on rare occasions, a handful of power-saving features might be disabled by default such as ACPI 2.0 and/or EpU settings, support for C6 on the CPU, and maybe a limitation to S1 suspend rather than STR/S3 as examples.

For Everything Else, There's RTFManualCard™

Originally posted by Turbo:
I don't know where you got this idea that the BIOS would auto-configure RAM up to 3200 MHz, or whatever, but it's completely false.

I didn't. That's all your misunderstanding.

I only ever talked about the BIOS being configured to run the RAM at its rated speed in board+CPU combinations which support it, not 2133Mhz. Ergo:

If a Ryzen 5 1500X on A360 board supporting 3600Mhz comes to me with Team Force DDR4 2400Mhz installed, the RAM is configured to 2400Mhz at boot (unless higher in case there are future scenarios where someone was trying to overclock...?), not 2133Mhz.
If a Ryzen 5 1500X on A360 board supporting 3600Mhz comes to me with G.Skill DDR4 2666Mhz installed, the RAM is configured to 2666Mhz at boot, not 2133Mhz.

NOT your imagined scenario of me complaining that the RAM must be auto-configured to be at the board and/or CPU's maximum supported speed.
Last edited by ShirtyGamer; Feb 7, 2019 @ 11:52pm
dvs_x Feb 7, 2019 @ 11:56pm 
I have had to adjust the XMP on every new mobo i have ever upgraded to. Even my Asus Maximus Formulas all have had the ram set at the base clock.

In saying that i have always purchased ram rated at a much higher speed.

It's quite amusing they included this because i have seen many peoples PC's come to me with XMP off so there ram was gimped right out the gate.

I also find it hilarious when doing a 3d Mark job that just adding another 8gb of ram and setting there XMP gets the job done.
Originally posted by theO:
Why is it that every single PC I receive which has any RAM of a speed more than 2133Mhz is running at 2133Mhz when first booted...?

First, let's start with some facts: JEDEC Standards. There is a standards group for computers called JEDEC. They establish the standards for our computer ram and the speeds it runs at. The official JEDEC specification for DDR4 is 2133 Mhz. What this means is that every computer in existence that supports DDR4 will default to run it's ram at 2133 Mhz as long as it's BIOS is set to "AUTO" For the ram speed. All computers do this. It does not matter if say for example the CPU and ram are specified to run up to 3600 mhz. As long as the BIOS is set to "AUTO" For ram speed, it will run at 2133 Mhz ram speed. This is how it works in real life. This is because JEDEC specified that all computers supporting DDR4 must run at this speed when their ram is set to "AUTO" in bios to comply with the JEDEC DDR4 standard.

Now that's real life. About PCBS: I honestly have not been paying attention to customer's ram speeds in career mode in PCBS. Because of this thread, I decided to play the game again tonight. I went and spent a couple hours doing career jobs tonight and I actually looked. So far out of 20 jobs I did tonight, all 20 of them had the customer's computer come to me in-game with their ram running at 2133 Mhz when I first got it on the work bench, and I checked and in their bios their ram speed setting was set to "AUTO".

Now: To answer your original question in the first post. The reason computers in PCBS behave this way is because this is how computers supporting DDR4 must behave in real life, according to the established standards set forth by the JEDEC group.

I hope this answers your original question in your first post.
Last edited by 🦊Λℚ𝓤ΛƑΛᗯҜᔕ🦊; Feb 8, 2019 @ 2:50am
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Date Posted: Feb 7, 2019 @ 8:04am
Posts: 72