BSOD - After extended idle period - Win 7 Ultimate 64 8GB RAM

I have a homebuilt PC running Win 7 Ultimate 64 with an i5 processor and 8GB of RAM. I built the system using a refurbished ASUS P7P55-M mobo. The system works fine and will run about 95% of the time under constant use. However, if I leave it for an hour or so, it will BSOD. After the BSOD, about 50% of the time it runs a hard drive consistency check, but otherwise seems no worse for wear.

I've attached SF zip file as requested and I'm hoping someone can help me decipher this.

I'm trying to avoid a new mobo and CPU...

Thanks a million for any/all help!

Steve

Welcome

Sound like hard drive is on its way out

STOP 0x00000034: CACHE_MANAGER
Usual causes: Insufficient physical memory, Indexing, Device driver

STOP 0x0000001A: MEMORY_MANAGEMENT
Usual causes: Device driver, memory, kernel

STOP 0x00000024: NTFS_FILE_SYSTEM
Usual causes: Disk corruption, insufficient physical memory, Device driver, Indexing, Resident antivirus, backup, defrag programs, Disk/Drive failing/failure

Lets start with testing your hard drive

First do disk check for file system errors and bad sectors on it

→ Disk Check

Hard drive test both short and long with
→ SeaTools for Windows

You may also take a hard drive test from the hard drive manufacturers website

Let us know the results

Thanks for the update. Good to hear that you're running stable now.
Let us know if you're experiencing any other problems. Good luck.