4.23.0.1 crashes on startup: QtCore4.dll

kill01198zwn3x

This crash has been present since I used version 4.21. I have changed my CPU and graphics card twice during my use of Daz, but the issue persists. However, it happens less frequently; whenever it crashes, I just need to close the window and then reopen it, and Daz starts normally again.

But today, a serious error occurred, every time I open Daz, this crash happens. I tried uninstalling Daz in DIM and then redownloading it, but it still didn't resolve the issue. Ironically, I was using Daz normally last night without any system changes or graphics driver updates, but when I returned home today and opened Daz, it kept crashing.

Below is my error message.my cpu is i5-14600KF and gpu is RTX4090.

DAZStudio.exe caused ACCESS_VIOLATION in module "C:\Program Files\DAZ 3D\DAZStudio4\QtCore4.dll" at 0033:000000007135EAC1, QChar::setRow()+865 byte(s)

Dolce Saito

Oh, the curse of intel. I feel your pain, as a 13900ks cpu and z790 board user myself. Your solution relies in the bios.

If filament CTD's, daz studio crashes while loading something, plug-in throws unhandled exceptions, it is highly probably not the cpu, but how it is being handled by the bios itself. That is the trouble.

So far, within my over-35-years of oem machine building experience, I've never ever seen any intel base system, which struggles to work even within its own advertised specifications. I found my way out, so there is a chance that it will throw you out of your unfortunate loop. I find it highly inappropriate for intel to leave proper settings to be found by the end-user like this. I know I'm not the only one feeling like this, so here it goes:

1- You would probably want to get the latest bios first

2- Load intel's failsafe defaults (I use extreme setting on my asus z790)

3- It is *very very* important to leave svid as "Intel's Fail Safe" and rest at defaults for starting point.

4- Find your avx2 settings, lower avx2 binning by 4. Be careful, when you do this, some of the *other* customizations you might have done will be reverted by a safeguard, but let it be.

5- Disable IA Cep and SV cep if your cpu allow for it and if you want additional performance. Do this ONLY IF you have a cooler which has over 180 points (mine is 208). Make sure to do this step after step 4, because CEP settings will be one of those which will be reverted. Just keep points in order.

6- Find your CORE temperature throttling, enable it, set it to 100 degrees for a core.

7- Find your PACKAGE temperature throttling, enable it and set it to 90 degrees for the whole cpu package.

(Edit) 7.5 - I forgot to add also disable "Overclocking TVB". Just disable it. This setting also might get reset after step 4, so do it last.

8- Save & Exit bios.

If you're not comfortable with playing around bios, leave this to someone who does. If you are unable, RMA whole thing and ask your money back, then maybe try to fetch an amd x3d type of cpu.

I really wish this helps. Took almost a year to stabilize the z790 system, and I can deeply understand your frustration. Just for the record, I managed to stabilize it 2 days ago relative to creation of my response to you.