Cities: Skylines II

Cities: Skylines II

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Dropa Oct 24, 2023 @ 10:49am
Entire PC rebooting after some amount of gameplay
Haven't had any issues with other games, but for some reason playing this the entire PC just reboots itself. Can't find any clear indicator of happened error from system logs. No blue screen or anything, just straight out restart.

Specs:
Asus ROG Strix B550-F Gaming AM4 (~4.2Ghz)
AMD Ryzen 9 5900X
Kingston FURY Renegader DDR4 3600mhz CL16 32 Gt
Asus GeForce RTX 4070 Ti ROG Strix - OC Edition
Asus ROG Strix 1000W

Imo there's some default tune (provided by motherboard) profile for CPU, but GPU is stock

Edit 1:
Originally this happened rather early in gameplay 10-20 minutes in. But it has happened in longer sessions too (e.g. 1,5 hours in game)

Before you suggest it is thermal problem, it isn't. Read the comments before suggesting it.

So far I've been able to reproduce the same problem with AIDA64 Cache & Memory benchmark where it crashes the system in the very beginning of memory copy operation. Note that other tests, such as MemTest86 do pass just fine.
Last edited by Dropa; Oct 27, 2023 @ 12:29pm
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Showing 46-60 of 80 comments
Shapa Oct 28, 2023 @ 3:02am 
i dont have fix but i encountered something similiar with the Way Of The Hunter game when i killed animal and i got close to that animal and pressed E to pick it up PC just died (restarted) and its a simple ass menu not like something demanding was happening most was a bullet animation and animal render... i was troubleshooting it for like 2 weeks software (bios settings and update , overclocks , underclocks,drivers, etc)and hardware nothing helped. Got new RAM got new Power Supply and got new fans there was not a trace of heat or power issues but i was like F it im all in .. didnt happend in any other game so i gave up came back after couple of months with absolutly same hardware that was still crashing and boom no more restarts, tried everything at max still nothing... no idea what is going on my specs : I7 10700F + RTX3070 +32gb RAM
King DaMuncha Oct 28, 2023 @ 3:06am 
Before the latest update it the game was making my RTX 2070 over heat, but after the recent update, just teh first update, my frame rate is a few frames higher and its not overheating.
Targonis Oct 28, 2023 @ 11:45am 
Originally posted by Dropa:
Originally posted by Targonis:
You obviously don't have a lot of technical background if you can't understand the logic there. So, here's how it works: If a game or program happens to push the system where there is an existing flaw, things may crash, or you may get a spontaneous reboot. It isn't that the game is the source of the problem as much as it is highlighting that there is a problem that you weren't previously aware of.

Now, I've been telling people to check for a BIOS update for their motherboard, because in many cases, the BIOS update will fix a fundamental system problem that in turn will cause a lot of problems that no amount of driver updates or whatever will fix. Remember, problem in the BIOS will cause issues that no developer will ever be able to track down, because Windows, drivers, and the game are not at fault, and without your exact motherboard and BIOS version, they would never be able to reproduce the reason for YOUR computer rebooting or crashing.

Thanks for understanding the issue. As indeed this is the first game ever to push the boundaries of my system.

Now, I did update BIOS & all chipset drivers but that didn't fix it (except that updating BIOS did reset tune, which however will "fix" the issue).

I've yet to tell if the game still finds some way of crashing game but so far I'm in state where all benchmarks (including AIDA64) works good. The key in my case was TPU (automatic overclocking) and why I think it might be case for most in here is because it's actually what you can turn on in the EZ Mode of bios. It's the EZ system tuning that when turned to "ASUS Optimal" instead of "Normal" that will push the system.

Interesting difference in D.O.C.P in my case was that if I set it from EZ Mode, it will correctly set memories at 3600MHz, whereas if I turn on D.O.C.P in Advanced mode it will set memories at 2400MHz by default.

All in all, I seem to get very much same results from all benchmarks by resetting BIOS to defaults and then only turning on D.O.C.P profile 1. Despite the fact it means CPU being base @ 3.9GHz instead of 4.2GHz. I'm not too familiar with overclocking but I might try to track down what setting in the automatic tune causes the failure.

Make sure that SAM/reBAR support are off as well, since that is an issue in other games for some people. NVIDIA doesn't implement it as well as AMD does.
Oonue Oct 28, 2023 @ 11:55am 
Noticed on the game pass version that my 3080 was hitting 80c on a new city prior to adding any roads, zoning, or structures. And that was with settings tweaked for performance. For comparison the highest GPU temp I get in Cyberpunk 2077 is around 70-72c.

Not needing high framerates for a city builder is one thing, not getting high framerates due to an empty landscape maxing out your GPU is another. Cities Skylines is not a unique game, there are other city builders out there, and none of them are as wasteful as Skylines II.
Spill Oct 28, 2023 @ 12:01pm 
Noone mentioned power supply?
Many power supplies runs fine until it comes comes under heavy load
Bialar Oct 28, 2023 @ 12:08pm 
Either something is overheating, or either your PSU or motherboard can't keep one or more of the voltages in tolerance under max load. Not that 1000W is not enough but wattage is irrelevant if 3.3v rail is not stable for example.
Munchykins Oct 29, 2023 @ 8:43am 
CPU & GPU on my PC are overheating with CS2 also. Been monitoring this and and both temps start to rise when I'm in the options mode before game has started. People are going to tell me its my rig and my cooling and not CS2. Beginning to feel a bit like Cassandra as no one believes me or the many others who are saying this is a problem. I know my Rig isn't top of the range but it is under 6 months old.
(incase your wondering)
W11 x64
Processor 13th Gen Intel(R) Core(TM) i7-13700F, 2100 Mhz, 16 Core(s), 24 Logical Processor(s)
32GB RAM
GeForce RTX 3080 15GB DDR
Foz Oct 29, 2023 @ 8:50am 
It's the game saving!

Very reliably reproducible by going to the save menu, and saving the game a few times. I normally found on the third to fifth save, my whole system locked up and restarted.

I tried a bunch of things to try and get this to stop happening including:
  • Changing the name of the save each time
  • Saving to steam cloud

Neither helped.

Moreover, I found that the save that caused the crash would disappear. So if you're overwriting a previous save and it causes the crash, poof, it's gone. But then if I try to save again using the same name, it tells me that a save with that name already exists, even though it's not in the list.

And the more it happens, the more backwards I seem to go. Eventually I no longer have the "Resume" option in the launcher. And the save I've been loading each time to test has now forgotten that I've already done the tutorial.

I'm going to assume those of you experiencing the restart during gameplay have autosave enabled. Disable it, then pray to your gods that when you're done playing, you don't lose it all.
Leprechaune Oct 30, 2023 @ 1:15pm 
Originally posted by vackillers:
This is also happening to me, after about 10 minutes sometimes less, the entire PC shuts down and reboots itself and resets all bios settings so its definitely a major crash. PC is stable has its been running other more intense games then this just fine. Checked temps and power levels and all are normal there is no overheating going on. This happened to me once before with another game called "V Rising" to which the developers admitted to and had to fix something with the game to stop it causing PC resets.

I Think we just simply have to wait for a patch to come to get this fixed.

My Specs:

Ryzen 9 5900X
32GB RAM
RTX 4070 TI
1TB NVME SSD
Windows 10

Yup...
Ryzen 9 5950X, 32GB RAM, RTX 3080 Ti, Samsung 980 PRO for OS and another for software, but I'm on Windows 11.
I've been quite concerned as to what might be happening because I JUST finally upgraded to my 5950X the week this game was released and while everything else has been running smooth this game has crashed and shut down my PC completely several times. One of the instances when it happens is when I go to save my game, which then corrupts the save file and it disappears when I reboot the computer. This specific action has triggered the crash 3 of the roughly 6 times it's happened and the others occurred when I clicked another feature button like zooming out to buy land plots, it was instant crash the moment of click in all cases, so NOT some cumulative random moment but when I actually make a click. But now I save MANY copies of my city so I don't keep losing my save file.

I'm not happy feeling like these crashes are somehow damaging my computer especially since I don't understand how it's even possible for the BIOS to get reset by a program I'm running.... But that's happened twice now.
Targonis Oct 30, 2023 @ 3:21pm 
Originally posted by Leprechaune:
Originally posted by vackillers:
This is also happening to me, after about 10 minutes sometimes less, the entire PC shuts down and reboots itself and resets all bios settings so its definitely a major crash. PC is stable has its been running other more intense games then this just fine. Checked temps and power levels and all are normal there is no overheating going on. This happened to me once before with another game called "V Rising" to which the developers admitted to and had to fix something with the game to stop it causing PC resets.

I Think we just simply have to wait for a patch to come to get this fixed.

My Specs:

Ryzen 9 5900X
32GB RAM
RTX 4070 TI
1TB NVME SSD
Windows 10

Yup...
Ryzen 9 5950X, 32GB RAM, RTX 3080 Ti, Samsung 980 PRO for OS and another for software, but I'm on Windows 11.
I've been quite concerned as to what might be happening because I JUST finally upgraded to my 5950X the week this game was released and while everything else has been running smooth this game has crashed and shut down my PC completely several times. One of the instances when it happens is when I go to save my game, which then corrupts the save file and it disappears when I reboot the computer. This specific action has triggered the crash 3 of the roughly 6 times it's happened and the others occurred when I clicked another feature button like zooming out to buy land plots, it was instant crash the moment of click in all cases, so NOT some cumulative random moment but when I actually make a click. But now I save MANY copies of my city so I don't keep losing my save file.

I'm not happy feeling like these crashes are somehow damaging my computer especially since I don't understand how it's even possible for the BIOS to get reset by a program I'm running.... But that's happened twice now.

So, like I've said to others, have you checked for a BIOS update, and did you try turning off SAM support in the BIOS? Download the latest chipset drivers for your motherboard as well.

I have a Samsung 980 Pro, but you can check for a firmware update for it with Samsung Magician. If all of that doesn't help, you can also try turning your RAM speed down to 2133 just to make sure there isn't some instability(most RAM makers only certify RAM speeds for Intel, unless you have Zen4 based Ryzen and EXPO RAM.
Sacb0y Oct 30, 2023 @ 3:24pm 
That would be a bluescreen.

meaning driver issue.
Last edited by Sacb0y; Oct 30, 2023 @ 3:24pm
Kermit Oct 30, 2023 @ 6:47pm 
Originally posted by Targonis:
Originally posted by Leprechaune:

Yup...
Ryzen 9 5950X, 32GB RAM, RTX 3080 Ti, Samsung 980 PRO for OS and another for software, but I'm on Windows 11.
I've been quite concerned as to what might be happening because I JUST finally upgraded to my 5950X the week this game was released and while everything else has been running smooth this game has crashed and shut down my PC completely several times. One of the instances when it happens is when I go to save my game, which then corrupts the save file and it disappears when I reboot the computer. This specific action has triggered the crash 3 of the roughly 6 times it's happened and the others occurred when I clicked another feature button like zooming out to buy land plots, it was instant crash the moment of click in all cases, so NOT some cumulative random moment but when I actually make a click. But now I save MANY copies of my city so I don't keep losing my save file.

I'm not happy feeling like these crashes are somehow damaging my computer especially since I don't understand how it's even possible for the BIOS to get reset by a program I'm running.... But that's happened twice now.

So, like I've said to others, have you checked for a BIOS update, and did you try turning off SAM support in the BIOS? Download the latest chipset drivers for your motherboard as well.

I have a Samsung 980 Pro, but you can check for a firmware update for it with Samsung Magician. If all of that doesn't help, you can also try turning your RAM speed down to 2133 just to make sure there isn't some instability(most RAM makers only certify RAM speeds for Intel, unless you have Zen4 based Ryzen and EXPO RAM.


I have crashing to reboot my PC, 5900x, at first with 4070ti returned and got a 4080 and it's still crashing. Got a brand new ATX 3.0 1000w PSU to swap my old one out, Still crashing, BIOS is latest version, still crashing, rebar on or off still crashing, Temps of GPU usually around 68-70 and CPU around 70-75, still crashing. ONLY this game reboots my PC. No stress test, no benchmark, no other games fulling maxed out stressing my PC this much. The only thing I could think of that I hasn't tested is maybe CPU gets such a huge spike that it my NOCTUA nh-d15 can't keep up and it shuts down. If my case could fit a 360 rad I'd try an AIO but unfortunately that is not the case. Out of ideas really.
Dropa Oct 31, 2023 @ 9:58am 
Originally posted by Kermit:
I have crashing to reboot my PC, 5900x, at first with 4070ti returned and got a 4080 and it's still crashing. Got a brand new ATX 3.0 1000w PSU to swap my old one out, Still crashing, BIOS is latest version, still crashing, rebar on or off still crashing, Temps of GPU usually around 68-70 and CPU around 70-75, still crashing. ONLY this game reboots my PC. No stress test, no benchmark, no other games fulling maxed out stressing my PC this much. The only thing I could think of that I hasn't tested is maybe CPU gets such a huge spike that it my NOCTUA nh-d15 can't keep up and it shuts down. If my case could fit a 360 rad I'd try an AIO but unfortunately that is not the case. Out of ideas really.

That sounds suspiciously high temps for CPU, given that I have same CPU & cooler.

As I've stated previously, in my case the problem was the auto tune for overclocking and I was able to reproduce the issue in AIDA64 memory test. Give that test a try and see if you've same problem.
Br.uNreaL Oct 31, 2023 @ 12:44pm 
Same... Ryzen 7700X with a 7900XT... the only game that hard resets my pc with no BSOD ever...
And yeah temps are more than fine, at least now i know that's not my pc since a lot of people are having it.
Kermit Oct 31, 2023 @ 6:03pm 
Originally posted by Dropa:
Originally posted by Kermit:
I have crashing to reboot my PC, 5900x, at first with 4070ti returned and got a 4080 and it's still crashing. Got a brand new ATX 3.0 1000w PSU to swap my old one out, Still crashing, BIOS is latest version, still crashing, rebar on or off still crashing, Temps of GPU usually around 68-70 and CPU around 70-75, still crashing. ONLY this game reboots my PC. No stress test, no benchmark, no other games fulling maxed out stressing my PC this much. The only thing I could think of that I hasn't tested is maybe CPU gets such a huge spike that it my NOCTUA nh-d15 can't keep up and it shuts down. If my case could fit a 360 rad I'd try an AIO but unfortunately that is not the case. Out of ideas really.

That sounds suspiciously high temps for CPU, given that I have same CPU & cooler.

As I've stated previously, in my case the problem was the auto tune for overclocking and I was able to reproduce the issue in AIDA64 memory test. Give that test a try and see if you've same problem.

70-75 under load is not even close to high for the 5900x, max operating temp is 95. I've never even hit in the 80s
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Date Posted: Oct 24, 2023 @ 10:49am
Posts: 80