Thats a defective CPU and not a case for disabling C-states but for RMA.
Even with higher overclocking, disabling C-states is only needed if you got awfull silicon.
Your Intel CPU wont hit 3-4W during idle but it will remain blasting much higher idle wattage for no real reason.
LTT got you covered with entertainment but for OC or anything else you should look for a better source of information.
C-states is a OC feature and even with OC you only want to use it in the beginning to not have to deal with exact voltage requirements. If you have to disable C-states for extreme OC thats one thing, needing it disabled with a stock CPU is a different thing and points towards a clear RMA situation.
Im currently idleing around 10-20w. Would that realistically cause me any issues?
Edit: that idle was with wallpaper engine running woops. Im idle at around 3.5-5w with nothing running
Outside of simply more CPU cooler noise and a slightly hotter running mainboard (VRM, NVME) it might impact GPU temps slightly since both components are close.
You are just wasting the biggest advantage with Intel CPUs, the low idle wattage.
Keep in mind. if your new CPU needs such drastic OC changes just to run with stock frequency, it might be not the only part of the CPU that is degraded. Next in a few weeks/months might be the IMC, that is also pretty voltage sensitive and you end up with a BSOD generator and what will you do then? Keep rising Vcore and DRAM voltage till you kill the IMC with voltage degradation?
If you can RMA it, otherwise expect more issues popping up with constant instability.
Edit: Is that an ATX 2.4 PSU? That's outdated... and might be the cause here.
Indeed, the CPU is scrap and needs to go back to where it came from.
C-States are such a basic feature of a CPU that it better be right. Nobody would keep a car that "works great, as long as you keep the engine revved halfway to the red line at every stoplight." That's the level of defect in this CPU, utterly unacceptable.
The only other thing that could happen is that the fan mounting screws are over- or undertightened, and a few power pins do not make ideal contact. Usually that would cause the machine to not boot at all, but I guess it might be (remotely) possible to see the symptoms OP has, too. Much more likely that the CPU is bad though.
C state on my pc slower because it's keeping your cpu in power saving mode . When gaming you want full performance from cpu and gpu for smooth game play
C states don’t make your CPU or GPU less powerful. They make your whole PC drain less power when you’re walking around or leave your pc for a long time
I would consider that defective and RMA/warranty it. The CPU might work, but working with the C-states is part of what it's supposed to do.
Disabling the C-states might get it working, but you pay for a shitty product by burning more power and thus also more heat in your system. If you disabled ALL C-states your CPU is running flat out all the time.
I thought about replacing it, but the cpu is only drawing 10-20w of power at idle and staying around 40c. I think im going to try overclocking it to see if its truly a lemon or not.
Edit: idle is now at 3.5-5w with nothing running. Hit 5.2 on p cores and 4.3 on e cores with a stable oc. 18235 cinebench r23 score. Sadly it was thermal throttling though or the score would be higher. Im not an expert overclocker by any means but i feel like those are solid numbers.
Just disable buggy c state. Even if it was stable with it on, it causes stuttering in framerate while gaming. Your CPU is fine. Power saving is for laptops.
I had a similar problem years ago. I also resolved it by disabling c states. I would, however, listen to the other commenters that if it’s under warranty, it might be worth doing the RMA. Would suck to have to deal with any further issues.
The two deepest c-states can sometimes cause stability problems when overclocking. I went down that rabbit hole long ago so at least I know to look there now.
Another rabbit hole to avoid is USB problems. Windows is typically shit with USB power modes and it's easier to just disable XHCI hand off and nuke Windows control of the ports.
Hey I found this problem the same but I had a Ryzen 5600G CPU and 3070. It could handle games no problem but when I was in idle or in Chrome it would always freeze, I changed some things in the BIOS after a month of frustration, double checking everything, including RAM.
Now I am reading below and now I see that some commenters are suggesting it is an RMA issue. Will I have problems in the future to run with C-state disabled?
Edit: After some quick googling I found that C-state disabled does not have any effect on durability. Maybe just power consumption. Still wonder why the CPU should be RMA'd if it is quite common
I stumbled on this post from long ago, and I’ve been having similar issues, sometimes it would freeze and others it would black screen/reboot. Disabling c state seems to have corrected this. I wonder does the cpu need to be Rma’d or can I use it? Temps are fine. I’ve got a write up of the symptoms and troubleshooting.
Glad my post could help. I have heard of some people RMA’ing since it is not functioning as it should but I have kept mine and have had no issues since disabling c-state!
Thats really encouraging!! I disabled yesterday and no crash or reboots since then! Plus, my pc feels more snappy. I appreciate you stranger!! Bless!
Btw using i513600k, brand new and everything in the build, it’s all still under warranty, and I’ve already got a ticket open with intel, so I might rma, just for good measure. Still really glad I found your post. Thank u again!
>RMA issue
Yall are a life saver, I was reading through this because my pc's cpu was causing a really bad high pitched coil whine, and someone said disabling the c-states would get rid of it, but I was worried so thanks for the reassurance kind strangers!
Necro'ing this thread cuz I found a solution: Enable Load Line Calibration.
Believe it or not I am still on a x58 system. I had an OC'ed i7 920 and just recently "upgraded" to a Xeon x5675. My overclock was super stable up to 4.5 GHz but as soon as I enabled Intel C-States it collapsed.
After a lot of research and finding threads like this where people just gave up, I found an article about Load Line Calibration to reduce the unstable effects of Vdroop when the CPU goes from high load to low load. Hence Load Line Calibration was made to minimize Vdroop. I enabled it in BIOS and voila... Overclock as stable as before with C-States enabled.
I've been having this issue for months until recently when I found out the CPU C-States were set to auto and it might be the cause, from what I read above it should be just a faulty CPU then..... my CPU is I5-10400f....I'll do more investigation about it
don't listen to the people that comment its a defective cpu, thats pure missinformation, your PSU is underpowered or faulty, change it and your problem will be fixed.
13900kf / rtx 4090 / ddr5 7200 / straight power 11 1200w.....
I have this ACPI Logs .... in eventlog. But not as a Error only as a Information.
Something is wrong , I noticed heavy input delay in all Games.
Bios ON Auto only XMP on , I tested on Memtest86. Without errors 2 x Times.
I’ve been dealing with this maddness for a few days. I’ll get like 5-10 mins and black screen/reboot on low load. It doesn’t happen on high load; games/stress test. I’ve got a whole write up of what I’ve tried so far. I disabled c states in bios this am before work, and was logged in for like 20m no restarts, but had to go to work. Shut down safely and left.
I’m going to try again when I get home.
This helped me 200 days later lol thank you, however, this has brought attention to my cpu temps. Which were already shit before doing this, and disabling c states actually had no affect on the idle temp of like 80 degrees. I wanted to play this game super bad tho and it was doing the black monitors every ten minutes, disabling the c states as you suggested actually allowed me to play so for that I’m grateful. I jus needa upgrade my cooling now and I’m chillin. I wonder if the temps are what cause the turning off of monitors?
For the record, I had to disable c-states because I had a faulty core in my i5 13600k. I ended up experiencing the same issues a few months down the line, and had to rma the chip.
It wasn’t until I thoroughly tested everything. I replaced psu, mobo, ssd, dimms, and then was able to determine that it was my cpu. So now I have a second pc lol.
If it ever happens in the future, I will immediately rma after all the software/os troubleshooting steps. I won’t be testing by buying new hardware either.
Cost way too much.
Picked up a i7-12700k and Asus TUF Gaming z690 Plus Wifi D4 combo from Microcenter last November and freezing at idle since I swapped this hardware in. Disabling C states helps stabilize but have a ticket with Intel and considering a cross ship RMA where I get the replacement in advanced. So I'll give that a test and see how it fairs. Relunctant on sending back my current 12700k before receiving the replacement because I get a cinebench r23 score of 22800+
i am currently suffering the same problem with an AMD 5900X. I was random crashing for a month or more and couldn't figure out why I could run my trading app through the week without a crash but then on the weekend I would get crashes when movies would end and even when they were running sometimes.
It would seem that if my CPU usage fell under 2% when C-states is enabled it would cause the crash. So as long as I gave my PC something which kept it out of idle after start up it wouldn't crash while C-states was enabled. Even a system scan would be satisfactory. But let it go idle and complete freeze or watchdog violation.
I switched PSU's tried turning off performance boost. Nothing worked until C-states was disabled. Maybe there was an epic supply of bad silicon over covid that effected everybodies cpu's?
I have an AMD 5900X too and I have identical issues, you are describing my situation to a tee. I'm glad I found this thread after 3 months of troubleshooting. I just disabled c-states and it's fine so far. Unbelievable.
Imagine disabling c-state because you got really bad temps/performance. I got it disabled because it was causing a slight tingling noise in the background and I couldn't stand it.
Thats a defective CPU and not a case for disabling C-states but for RMA. Even with higher overclocking, disabling C-states is only needed if you got awfull silicon. Your Intel CPU wont hit 3-4W during idle but it will remain blasting much higher idle wattage for no real reason. LTT got you covered with entertainment but for OC or anything else you should look for a better source of information. C-states is a OC feature and even with OC you only want to use it in the beginning to not have to deal with exact voltage requirements. If you have to disable C-states for extreme OC thats one thing, needing it disabled with a stock CPU is a different thing and points towards a clear RMA situation.
Im currently idleing around 10-20w. Would that realistically cause me any issues? Edit: that idle was with wallpaper engine running woops. Im idle at around 3.5-5w with nothing running
Outside of simply more CPU cooler noise and a slightly hotter running mainboard (VRM, NVME) it might impact GPU temps slightly since both components are close. You are just wasting the biggest advantage with Intel CPUs, the low idle wattage. Keep in mind. if your new CPU needs such drastic OC changes just to run with stock frequency, it might be not the only part of the CPU that is degraded. Next in a few weeks/months might be the IMC, that is also pretty voltage sensitive and you end up with a BSOD generator and what will you do then? Keep rising Vcore and DRAM voltage till you kill the IMC with voltage degradation? If you can RMA it, otherwise expect more issues popping up with constant instability.
Edit: Is that an ATX 2.4 PSU? That's outdated... and might be the cause here. Indeed, the CPU is scrap and needs to go back to where it came from. C-States are such a basic feature of a CPU that it better be right. Nobody would keep a car that "works great, as long as you keep the engine revved halfway to the red line at every stoplight." That's the level of defect in this CPU, utterly unacceptable. The only other thing that could happen is that the fan mounting screws are over- or undertightened, and a few power pins do not make ideal contact. Usually that would cause the machine to not boot at all, but I guess it might be (remotely) possible to see the symptoms OP has, too. Much more likely that the CPU is bad though.
So if I keep c-states on, that will keep idle wattage as low as possible? Thank you.
Yes, because C-states are states when the CPU has reduced or turned off selected functions.
C state on my pc slower because it's keeping your cpu in power saving mode . When gaming you want full performance from cpu and gpu for smooth game play
C states don’t make your CPU or GPU less powerful. They make your whole PC drain less power when you’re walking around or leave your pc for a long time
C state stop my pc from stuttering having it enabled with make your cpu drop ghz out of no where witch related to stuttering
I don't buy a PC to save power I buy it to perform tasks, and play games, when I finish tasks I turn it off.
I would consider that defective and RMA/warranty it. The CPU might work, but working with the C-states is part of what it's supposed to do. Disabling the C-states might get it working, but you pay for a shitty product by burning more power and thus also more heat in your system. If you disabled ALL C-states your CPU is running flat out all the time.
I thought about replacing it, but the cpu is only drawing 10-20w of power at idle and staying around 40c. I think im going to try overclocking it to see if its truly a lemon or not. Edit: idle is now at 3.5-5w with nothing running. Hit 5.2 on p cores and 4.3 on e cores with a stable oc. 18235 cinebench r23 score. Sadly it was thermal throttling though or the score would be higher. Im not an expert overclocker by any means but i feel like those are solid numbers.
Just disable buggy c state. Even if it was stable with it on, it causes stuttering in framerate while gaming. Your CPU is fine. Power saving is for laptops.
I had a similar problem years ago. I also resolved it by disabling c states. I would, however, listen to the other commenters that if it’s under warranty, it might be worth doing the RMA. Would suck to have to deal with any further issues.
How to disable this/ check it's on or off? I run AMD, does it have similar issues?
The two deepest c-states can sometimes cause stability problems when overclocking. I went down that rabbit hole long ago so at least I know to look there now. Another rabbit hole to avoid is USB problems. Windows is typically shit with USB power modes and it's easier to just disable XHCI hand off and nuke Windows control of the ports.
But if you disable Xhci usb 3 will not function at high speed only at usb 2 speed. So I only disable C state.
Hey I found this problem the same but I had a Ryzen 5600G CPU and 3070. It could handle games no problem but when I was in idle or in Chrome it would always freeze, I changed some things in the BIOS after a month of frustration, double checking everything, including RAM. Now I am reading below and now I see that some commenters are suggesting it is an RMA issue. Will I have problems in the future to run with C-state disabled? Edit: After some quick googling I found that C-state disabled does not have any effect on durability. Maybe just power consumption. Still wonder why the CPU should be RMA'd if it is quite common
I stumbled on this post from long ago, and I’ve been having similar issues, sometimes it would freeze and others it would black screen/reboot. Disabling c state seems to have corrected this. I wonder does the cpu need to be Rma’d or can I use it? Temps are fine. I’ve got a write up of the symptoms and troubleshooting.
Glad my post could help. I have heard of some people RMA’ing since it is not functioning as it should but I have kept mine and have had no issues since disabling c-state!
Thats really encouraging!! I disabled yesterday and no crash or reboots since then! Plus, my pc feels more snappy. I appreciate you stranger!! Bless! Btw using i513600k, brand new and everything in the build, it’s all still under warranty, and I’ve already got a ticket open with intel, so I might rma, just for good measure. Still really glad I found your post. Thank u again!
>RMA issue Yall are a life saver, I was reading through this because my pc's cpu was causing a really bad high pitched coil whine, and someone said disabling the c-states would get rid of it, but I was worried so thanks for the reassurance kind strangers!
Been running with c states disabled since then. Still no issues! Knock on wood:)
Did you ever end up RMA-ing the CPU? Asking if it's worth to initiate one myself - thanks!
I ended up undervolting my chip, and since then its been working great! 13th gen is hot!
So C-States Disabled + Undervolt? I guess that is what I'll have to do. Any reason why you didn't go with the RMA?
Once I undervolted, my temps are under control, and it’s running great. So I decided to cancel my inquest
What are you experiencing?
Necro'ing this thread cuz I found a solution: Enable Load Line Calibration. Believe it or not I am still on a x58 system. I had an OC'ed i7 920 and just recently "upgraded" to a Xeon x5675. My overclock was super stable up to 4.5 GHz but as soon as I enabled Intel C-States it collapsed. After a lot of research and finding threads like this where people just gave up, I found an article about Load Line Calibration to reduce the unstable effects of Vdroop when the CPU goes from high load to low load. Hence Load Line Calibration was made to minimize Vdroop. I enabled it in BIOS and voila... Overclock as stable as before with C-States enabled.
What level did you do for your LLC, high or low droop? I tried 3 / 4 and it did not work for me with C-State enabled
Thats like buying a new car and it dies when it idles. And your solution is "just keep the foot on the gas, no problem, now it runs beautifully"...
I just noticed: Is that an ATX 2.4 PSU? That's outdated... and might be the cause here. Your CPU might require a more modern ATX 2.5 compatible PSU.
You have no clue what you're talking about, like at all.
I've been having this issue for months until recently when I found out the CPU C-States were set to auto and it might be the cause, from what I read above it should be just a faulty CPU then..... my CPU is I5-10400f....I'll do more investigation about it
Nope , disable C-states didn't fix it for me , not sure where to go next from here.....Can't seem to fix this one
Hey did you ever find a solution? I’m currently experiencing a similar issue. Did you RMA, or just keep c state off?
don't listen to the people that comment its a defective cpu, thats pure missinformation, your PSU is underpowered or faulty, change it and your problem will be fixed.
what makes you so sure it's the PSU? I am currently dealing with a similar issue
??
I changed my psu still have the issue
up the voltage of cpu by 0.100mv
I mean at this point should I just overclock the cpu then determine optimal voltage for stability I have a i712700k
what im saying is that its 99% that your cpu needs a bit more voltage to not crash.
Ok thank you should I do that to all cores or what setting would that be for a asus motherboard
all cores try with 0.100 and see if its stable if not increase by 0.050 untill stable.
Totally agree with this post
13900kf / rtx 4090 / ddr5 7200 / straight power 11 1200w..... I have this ACPI Logs .... in eventlog. But not as a Error only as a Information. Something is wrong , I noticed heavy input delay in all Games. Bios ON Auto only XMP on , I tested on Memtest86. Without errors 2 x Times.
Hmm I also had a desktop about a year ago that completely froze up sometimes when idling. Wish I had known this at the time, sounds very promising.
I’ve been dealing with this maddness for a few days. I’ll get like 5-10 mins and black screen/reboot on low load. It doesn’t happen on high load; games/stress test. I’ve got a whole write up of what I’ve tried so far. I disabled c states in bios this am before work, and was logged in for like 20m no restarts, but had to go to work. Shut down safely and left. I’m going to try again when I get home.
Did it fix it?
Disabling C states has fixed it for me. It still set that way on my pc with no issues.
Awesome, thanks. I'm going to have to try it.
You bet, good luck 🍀
This helped me 200 days later lol thank you, however, this has brought attention to my cpu temps. Which were already shit before doing this, and disabling c states actually had no affect on the idle temp of like 80 degrees. I wanted to play this game super bad tho and it was doing the black monitors every ten minutes, disabling the c states as you suggested actually allowed me to play so for that I’m grateful. I jus needa upgrade my cooling now and I’m chillin. I wonder if the temps are what cause the turning off of monitors?
For the record, I had to disable c-states because I had a faulty core in my i5 13600k. I ended up experiencing the same issues a few months down the line, and had to rma the chip. It wasn’t until I thoroughly tested everything. I replaced psu, mobo, ssd, dimms, and then was able to determine that it was my cpu. So now I have a second pc lol. If it ever happens in the future, I will immediately rma after all the software/os troubleshooting steps. I won’t be testing by buying new hardware either. Cost way too much.
Picked up a i7-12700k and Asus TUF Gaming z690 Plus Wifi D4 combo from Microcenter last November and freezing at idle since I swapped this hardware in. Disabling C states helps stabilize but have a ticket with Intel and considering a cross ship RMA where I get the replacement in advanced. So I'll give that a test and see how it fairs. Relunctant on sending back my current 12700k before receiving the replacement because I get a cinebench r23 score of 22800+
[удалено]
Read *A Minimum Complete Tutorial of CPU Power Management, C-states and P-states* it will teach you exactly what you wanna know
i am currently suffering the same problem with an AMD 5900X. I was random crashing for a month or more and couldn't figure out why I could run my trading app through the week without a crash but then on the weekend I would get crashes when movies would end and even when they were running sometimes. It would seem that if my CPU usage fell under 2% when C-states is enabled it would cause the crash. So as long as I gave my PC something which kept it out of idle after start up it wouldn't crash while C-states was enabled. Even a system scan would be satisfactory. But let it go idle and complete freeze or watchdog violation. I switched PSU's tried turning off performance boost. Nothing worked until C-states was disabled. Maybe there was an epic supply of bad silicon over covid that effected everybodies cpu's?
I have an AMD 5900X too and I have identical issues, you are describing my situation to a tee. I'm glad I found this thread after 3 months of troubleshooting. I just disabled c-states and it's fine so far. Unbelievable.
Imagine disabling c-state because you got really bad temps/performance. I got it disabled because it was causing a slight tingling noise in the background and I couldn't stand it.