Looks like a bad upload on the last dump Mini062309-04.dmp (92.0 KB, 4 views)
Here is a summary of the other two...
PAGE_FAULT_IN_NONPAGED_AREA (50) - Faulting Module = SYMEFA.SYS
Invalid system memory was referenced. This cannot be protected by try-except, it must be protected by a Probe. Typically the address is just plain bad or it is pointing at freed memory.
UNEXPECTED_KERNEL_MODE_TRAP_M (1000007f) - Faulting Module = ntoskrnl.exe
This means a trap occurred in kernel mode, and it's a trap of a kind that the kernel isn't allowed to have/catch (bound trap) or that is always instant death (double fault).
Stop 0x7F messages
• are typically due to defective, malfunctioning, or failed memory hardware.
• Running the CPU beyond the rated specification, known as "overclocking," can cause Stop 0x7F or other error messages due to heat buildup.
• The problem might also be due to cracks, scratched traces, or defective components on the motherboard. If all else fails, take the system motherboard to a repair facility for diagnostic testing.
• Stop 0x7F messages can occur after installing incompatible applications, drivers, or system services.
Re; 0x50 messages
• If you added new hardware recently, remove and replace the hardware to determine if it is causing or contributing to the problem.
• Stop 0x50 messages can also occur after installing faulty drivers or system services. ... Using updated drivers and software is especially important for network interface cards, video adapters, backup programs, multimedia applications, antivirus scanners, and CD mastering tools.
So... To help chase this down...
1. Are you overclocking? Is so, revert and see if that resolves the problems.
2. Have you recently added hardware or software, or changed bios settings?
3. Try using Memtest... See this ...
https://www.techspot.com/vb/topic62524.html
It usually takes a while to run, so you might want to start it before going to bed, and let it run overnight.
In short, there are 8 tests of increasing complexity to each cycle or pass. You need at least 7 passes. If you find errors, you can stop sooner, because memory is defective and needs replacing.
4. You are running SP3, but have you checked MS for other updates? Sometimes they will recommend updates based upon your specific hardware.
5. Sometimes malware can cause drivers to misbehave. Are you absolutely sure you have not become infected. If you are not sure, start with the 8 steps here.
https://www.techspot.com/community/...lware-removal-preliminary-instructions.58138/
If malware is found, then post a new thread there.
https://www.techspot.com/vb/menu28.html
6. If might also help if you gave us a run down of your system hardware and software...
Let us know how the tests are progressing.
If you have other minidumps, please attach them to your next post.
HTH