Whew! I finally found out why only safe mode is getting the BSOD on my PC and the cause.(below)
That was a tricky one because the problem is invisible and never even happened to windows outside of safe mode. Plus trying to narrow down search result for troubleshooting safe mode only issues was next to imposable. 8/
When you start your Microsoft Windows XP-based computer after you replace the motherboard on the computer, you may receive a Stop error message that is similar to the following:
STOP 0x0000007B INACCESSABLE_BOOT_DEVICE
This issue may occur if the new motherboard contains an embedded IDE controller that has a different chipset than the original motherboard.