CPU AVX fix!

[Gwynnbleidd]

After seeing a few posts and realizing I couldn't play AC Odyssey until they fixed their AVX CPU problem with the 1.03 patch, I think this may be the issue many of us are facing with crashes into specific parts in the "life paths". I've tried verifying integrity, disabling all overlays, updated to the latest driver that came out today, setting EVERYTHING to the LOWEST. Still I crash consistently every time after I leave the bar in street kid, sit in the chair in corpo, or at after a certain cutscene in nomad. I don't have an AVX capable processor. I'm definitely no PC expert by any means.
Granted I have a pretty low end PC, but I can still run RDR2, Horizon Zero Dawn, even AC Valhalla.
i7 860
nvidia 1050ti
8GB RAM
500 GB SSD

Edit: I am getting the "EXCEPTION_ILLEGAL_INSTRUCTION (0xC000001D)" error in my crash report.

[The Soul Hunter]

Time to refund or upgrade lol

[alullabyofpain]

Originally posted by Gwynnbleidd:

After seeing a few posts and realizing I couldn't play AC Odyssey until they fixed their AVX CPU problem with the 1.03 patch, I think this may be the issue many of us are facing with crashes into specific parts in the "life paths". I've tried verifying integrity, disabling all overlays, updated to the latest driver that came out today, setting EVERYTHING to the LOWEST. Still I crash consistently every time after I leave the bar in street kid, sit in the chair in corpo, or at after a certain cutscene in nomad. I don't have an AVX capable processor. I'm definitely no PC expert by any means.
Granted I have a pretty low end PC, but I can still run RDR2, Horizon Zero Dawn, even AC Valhalla.
i7 860
nvidia 1050ti
8GB RAM
500 GB SSD

Edit: I am getting the "EXCEPTION_ILLEGAL_INSTRUCTION (0xC000001D)" error in my crash report.

how can you run horizon zero dawn if it needs avx?

[Erexx]

Originally posted by alullabyofpain:

how can you run horizon zero dawn if it needs avx?

Patch v1.08 added support for non-AVX CPUs. CDPR probably will also patch that in Cyberpunk, but it might take a few months.

[Poison Trail]

Originally posted by Dr.Abscondus:

i7 -860 is far below minimum requirements regardless of whether it has AVX or not. If you buy a game and your pc is way below minimum then that's on you. Minimum is developer telling you that below that they aren't promising the game will run at all. Isn't that upfront enough for you? That 1050 was a waste of money because it spends half it's time waiting for the CPU to catch up.

It's not "far below", any i7 can run this game. CPU gaming performance has peaked a long time ago on the higher end, first gens from 2009 are still overkill for gaming.

The only reason it and Xeon CPUs crash is because of a set of instructions which are OPTIONAL and can be switched for something it won't refuse to read. Horizon Zero Dawn wouldn't start until the AVX check at start was removed, once it was removed, game runs silky smooth.

[Daxzair]

Someone posted a fix on Nexus! People on the forums are saying it's working :)
https://forums.cdprojektred.com/index.php?threads/cyberpunk-2077-pc-crash-issues.11040656/page-41

[Ichiro Yūhabahha]

I posted the fix oh hey there Daxzair you're on the same forum I was at ehh :) !!! Yeah that's the fix either get the nexus mod avxfix or follow these instructions.

Game crashing on old CPUs: possible fix



If you happen to have an old CPU you maybe having this crash:



Expression: EXCEPTION_ILLEGAL_INSTRUCTION (0xC000001D)



The game is trying to use a feature you don’t have: AVX.



At the beginning playing corpo when you sit it crashes. A possible temporal solution while they fix this issue is to remove this part of code:



Edit Cyberpunk2077.exe with a hexadecimal editor and search for

554881ECA00000000F2970E8

Change the first byte to C3 (return from the function):

C34881ECA00000000F2970E8



Please note this fix is extremely simplistic and naïve. Moreover, it could crash the game later. This change seems to fix this crash and you can continue playing the game. I have only tested a few minutes more.



FAQ: Why are they using AVX?

They are not doing it on purpose, it is probably the default configuration of the compiler.

[br3adwhale]

A user in the CDPR Forum made a inofficial fix. No worries, its no malware. Just replace steamapps\common\Cyberpunk 2077\bin\x64\Cyberpunk2077.exe with this one:

https://www.nexusmods.com/cyberpunk2077/mods/34?tab=description

https://www.virustotal.com/gui/file/8a2e00a686dae14a4993c1d8eaa81e79480467f05ea89ce6227e3787539fea73/detection

No need to buy a new CPU as the "intelligent" people try to tell.

[Daxzair]

This fixes the crash we get on older i7s and Xeons that lack AVX instructions. CTD happens when exiting the bar or sitting on the chair in the corpo intro.

Someone released an assembly code edit of the .exe on Nexus. Get that here: https://www.nexusmods.com/cyberpunk2077/mods/34?tab=description

Delete your CACHE folder here at C:\Users\XXXXXXX\AppData\Local\CD Projekt Red\Cyberpunk 2077

Launch the provided .exe; Now the size of the provided .exe is the same in bytes as the original. This leads me to think that a line was changed in the code and no malicious code was added. Use at your own risk.

This fixes it on my X5675. I run the .exe provided after deleting cache. It wouldn't even load the cinematic without removing cache. :)

FYI CDPR is working on a fix as mentioned on the CDPR forums

[Bone Apple Mr. T]

Originally posted by Daxzair:

Someone posted a fix on Nexus! People on the forums are saying it's working :)
https://forums.cdprojektred.com/index.php?threads/cyberpunk-2077-pc-crash-issues.11040656/page-41

This seems to work for people with older CPUs that get stuck at an early point in the game. I have an older CPU and cannot even get the game to launch. I tried both the nexus mod download and the hex edit method. No luck.

[Daxzair]

Originally posted by Bone Apple Mr. T:

Originally posted by Daxzair:

Someone posted a fix on Nexus! People on the forums are saying it's working :)
https://forums.cdprojektred.com/index.php?threads/cyberpunk-2077-pc-crash-issues.11040656/page-41

This seems to work for people with older CPUs that get stuck at an early point in the game. I have an older CPU and cannot even get the game to launch. I tried both the nexus mod download and the hex edit method. No luck.

Have you tried removing cache? That last step fixed it for me

[MercyGG]

AVX Fix was already posted on nexusmods, check it out, might help you

[Bone Apple Mr. T]

Originally posted by Daxzair:

Originally posted by Bone Apple Mr. T:

This seems to work for people with older CPUs that get stuck at an early point in the game. I have an older CPU and cannot even get the game to launch. I tried both the nexus mod download and the hex edit method. No luck.

Have you tried removing cache? That last step fixed it for me

The cache is generated once the game is launched. My game has not started even once when hitting play in the REDlauncher.

[Baka sobaka]

Originally posted by Daxzair:

This fixes the crash we get on older i7s and Xeons that lack AVX instructions. CTD happens when exiting the bar or sitting on the chair in the corpo intro.

Someone released an assembly code edit of the .exe on Nexus. Get that here: https://www.nexusmods.com/cyberpunk2077/mods/34?tab=description

Delete your CACHE folder here at C:\Users\XXXXXXX\AppData\Local\CD Projekt Red\Cyberpunk 2077

Launch the provided .exe; Now the size of the provided .exe is the same in bytes as the original. This leads me to think that a line was changed in the code and no malicious code was added. Use at your own risk.

This fixes it on my X5675. I run the .exe provided after deleting cache. It wouldn't even load the cinematic without removing cache. :)

FYI CDPR is working on a fix as mentioned on the CDPR forums

Thank you so much! I though i would have to sell a kidney to buy a new cpu even thou i get 60fps on ultra

[Kei]

Originally posted by Bone Apple Mr. T:

Originally posted by Daxzair:

Someone posted a fix on Nexus! People on the forums are saying it's working :)
https://forums.cdprojektred.com/index.php?threads/cyberpunk-2077-pc-crash-issues.11040656/page-41

This seems to work for people with older CPUs that get stuck at an early point in the game. I have an older CPU and cannot even get the game to launch. I tried both the nexus mod download and the hex edit method. No luck.

Thanks for testing this. Saved at least one person from the pain.

[faverodefavero]

https://www.nexusmods.com/cyberpunk2077/mods/34?tab=description