The infamous "c0000005" again.
I have a Geforce GTX 750 Ti video card. A Cooler Master GX-450W PSU and APC UPS, a Chieftec case, a Dell monitor a Logitech K120 keyboard and a Logitech G400 mouse. I use the most recent drivers by everything.
a.)
I have a Gigabyte GA-EP43T-USB Rev 1.0 motherboard with a Xeon E5430 C0 CPU, ISGC-300 cooler and 4x2GB dual channel Kingston DDR3 1600CL9 memory modules. I recently did a 15 hours long memtest with the 4 modules and they passed it. What is interesting, that one of the modules is 1.7v-1.9v, while the others are 1.65v. According to Speccy the memory controller runs at 1.8v, but the memories are running at 1.5v and 1.65v-s depending on the XMP support. I am not sure which voltage value is the truth. 2 modules with XMP run at 1600MHz, 2 modules without it run on 1333MHz. They are paired properly. The CPU runs at 59°C by max load, and between 48-54°C by browsing. Over 63°C it starts to freeze the system, but I managed to fix the cooler, so that does not happen now.
a.1.)
I have a faulty HDD with many bad sectors and a win7x64 on it with the latest updates. The system is unstable with this HDD, it freezes once in 1-3 days, and I have messages about VGA driver failures and recoveries 2-3 times a day and applications are frequently crashing as well. With this system the bf4 with 64 players runs with 100 fps by locker, metro and 50 fps by big open maps. Using this system I got the c0000005 error after a few hours of playing.
a.2.)
I installed a brand new win7x64 on a new HDD. I am not sure whether the installer was the same as by a.1.), since the old system is 7 years old. I did not do any windows update, so the system is pre sp1 win7. That newly installed system is more or less stable. Firefox has tearing by scrolling but at least it does not crash every hour when hardware acceleration is enabled. The system does not freeze and applications are running properly. The only problem, that bf4.exe crashes with c0000005 error 5-10 secs after connecting to a server.
b.)
I bought an Asus Z97-P motherboard with an Intel i5-4670k, factory cooler and 2x4GB Corsair DDR3 1600CL9 memory modules. I think one of the modules are faulty, it sometimes passes the memtest, and sometimes it doesn't.
Anyways I used the new HDD with this too and installed a win7x64 for this system with the same installer and with the same nvidia driver. So I did everything exactly the same as by a.2.) except I installed the Asus drivers for the motherboard instead of the Gigabyte drivers. With this system the bf4 with 64 players runs with 200 fps by locker, metro and 100 fps by big open maps. I played about 10 hours without any problems, it is perfectly stable. The system is stable with other applications as well, I did not encounter any errors.
I can do any test on the 3 systems if it is necessary.
What is causing the c0000005 error in the a.) systems?
Why are the errors so different by a.1) and a.2)?
