Greetings,
 
So I've got an old X-58 Classified 3 motherboard with a GTX 770 GPU that I'm attempting to use with a new SDD and fresh Windows 10 installation.
 
Currently, I'm experiencing system freezes that vary in length and are semi predictable.   Usually it's when I'm opening an app.. Browsers, Discord, Steam, Oculus software.  Sometimes when running an installer.
 
What usually happens is that the mouse cursor will keep moving but everything else is unresponsive, then the cursor will freeze as well.  Then when it and if it unfreezes, the screen goes black for a moment and then everything is working again..  It can take less than a minute to unfreeze or sometimes hours.
 
First I tried installing Windows 10 on a new Crucial MX500 SSD.  I reinstalled Windows several times and thought it might be an issue with the new SSD.    I'll note that I installed windows with the bios set to AHCI, I've also updated the bios to the latest version.  I've tried running in IDE mode as well.
 
So I tried again with a Samsung 860 EVO SSD.  Same result.  I've also attempted to re-seat the GPU. No Change.
 
Oddly I've been able to run No Man's Sky and a couple other games without any freezing issues during gameplay.
 
Any ideas?  Is my Motherboard just too old to handle an SSD?  Could my old GPU be bad?  The GPU has never been used before, it was a spare I had sitting around.
 
Thanks.

Sajin
Sounds like you need to test your system ram for errors. I'd also test with another gpu.

Thanks, I ran the Windows memory diagnostic and didn't get any errors.  Then I finally looked in my Event Viewer and noticed the Nvidia driver was crashing and recovering often. 
 
So I swapped out to an old GTX 470.  That seemed to solve the freezing issue.. Everything seemed fine at first, Then the system started randomly rebooting.  There's nothing in the Event viewer about the Nvidia driver anymore.  
 
I'll have an RTX 2060 to test with soon.

The built in checker is very basic. I'd suggest booting to https://www.memtest.org/ from a flash drive and doing a full scan.

Hmm. How old is your psu?

PSU is an old Corsair Modular HX1000W
 
Chipset drivers are installed again and were before. 
 
Since I installed the RTX 2060, the situation has evolved into the system being stable until attempting to install the Nvidia driver.  I've tried installing older drivers, as well as the RTX 2060 that I can select from Device Manager with no downloaded drivers present.  Every one causes the monitor to lose signal and never recover..  Then I won't be able to boot into windows until auto-repair pops up and restores me to a point before the Nvidia driver.
 
If there's an underlying memory issue, either it's all of my memory chips individually or it's not affecting me right now.

Random freezes could even be a broken SATA cable issue but not random restarts, that sounds more like a PSU problem.

Having the card tested at a local pc shop is an option.

 

👍