Over the years I've had this heavily used machine, I have replaced the drives with spinning magnetic disks
I got a Western Digital 500GB SSD with my fingers crossed.
The OS (C: ) drive was transferred via Clonezilla.
It boots up well, and everything works OK for a while.
Then things like taskbar applications stop working ("bad instruction").
Then the video adapter goes blacks out, goes into low res mode.
Then the screen quickly goes to black. Not even a cursor is seen.
Ctrl-Alt-Del and Ctrl-Shift-Esc do nothing.
There has only been one or two BSODs
chkdsk c: /f /r and 'sfc /scannow' were done.
Haven't had time yet to run memtest...not sure if it would help
My G74SX has no hardware changes/upgrades/modifications
BIOS setting needs to be changed? Suggestions?