It has been about 9 years since my Windows 7 build. 

Gigabyte P67A-UD4-B3 motherboard
Intel i7 2600K CPU
16GB RAM
LSI Logic 8708EM2 SAS RAID controller
2 x Seagate 300GB 15K.7 SAS drives
2 x Seagate 146GB 10K.6 SAS drives
ATI HD 6970 video adapter
Intel GT NIC gigabit adapter
PC Power and Cooling 1000W single rail power supply
Windows 7 Pro x64

The motherboard, ram, and CPU were moved into my tape backup server for VEEAM.

My new Windows 10 build

ASUS Prime Z490-A motherboard
Intel i7 10770K CPU
Crucial DDR4 3200 32 GB RAM
Samsung 980Pro 256GB M.2 SSD drive
Samsung 980Pro 512GB M.2 SSD drive

LSI Logic 8708EM2 SAS RAID controller
2 x Seagate 300GB 15K.7 SAS drives
2 x Seagate 146GB 10K.6 SAS drives
ATI HD 6970 video adapter
PC Power and Cooling 1000W single rail power supply
Windows 10 Pro x64

 

I went with the Intel i7 10770K because the Intel 11th generation is being released soon and will work on this board.
PRIME Z490-A BIOS 2004
-Support 11th Gen Intel® Core™ Processors
– improve ReSizable BAR compatibility for NVIDIA RTX30 series graphics cards

The shortage of GPUs in 2020-2021 forced me to keep my ATI HD6970 for now.  I am looking for a sub $300 graphics adapter that can play Skyrim and be compliant with the new BIOS.

I installed two M.2 SSD drives that are supposely the fastest SSD drives available.  
256GB is C:\ for the OS
512GB is D:\ for apps that don’t require a lot of R/W cycles
300GB SAS RAID 1: apps and games that require R/W cycles
146GB SAS RAID 1: swapfile.sys. pagefile.sys, temp files.

I moved My Documents, Downloads, Outlook OST files off of the SSD drives to extend their life.   I will explain it below.

My tape server has my old Windows 7 hardware without the SAS RAID.   I installed 4 x Western Digital Black drives.  These are some of the fastest SATA drives on the market

C:\  1TB for OS and VEEAM
M:\ 4TB
N:\ 2TB
O:\ 4 TB

I split up the 3 drives for backing up my Ubuntu VMs and Windows 10 workstation.   Backup speeds are now 90-100 MB/s.    I can still add eSATA drives to it to extend the backups.  I keep 3 backups and move the current one to the LT03 (workstations) and LTO4 (Ubuntu VMs).  

Windows 10 SSD Best Practices:  Here are tips on limiting usage of your SSD drives.  I install games and data on my HDD drives.

1.) Move pagefile.sys and swapfile.sys from C: to HDD.   You start by turning off all virtual paging files.   You go to System Properties – Advanced System Settings for your virtual memory.   Set all drives to no paging file.   Open an command prompt – Run as administrator.   Type
 mklink c:\swapfile.sys t:\swapfile.sys 
in the prompt.   This will create a symlink on your c: drive for swapfile.sys and move it to drive t.   You can change t to whatever your hard drive partition is.   You can then go back and setup the pagefile.sys virtual memory.   I have 32 GB so I left it as system managed size.   If you unhide your files, you will see both on t: or wherever you place them.

2.) Move the Office OST files off your SSD drives to your HDD.  Create a folder on a HDD partition.  I called mine E:\Outlook_OST.  Close Outlook and manually copy all your OST files to this new partition.  Rename the ones in C:\Users\\AppData\Local\Microsoft\Outlook to .old. 

mklink C:\Users\<your user>\AppData\Local\Microsoft\Outlook\<your ost file>  E:\Outlook_OST\<your ost file>

It will symlink them in C:\Users\Win10x64i7\AppData\Local\Microsoft\Outlook

3.) Move your Documents folder from C: to HDD.  In Windows Explorer,  right click on Documents.   Goto Properties – Location.   Click move and choose the new location.   I did E:|My_location

4.) You can repeat step 3 on downloads, saved games

5.) I moved my temp files to HDD.  Advanced system settings under environment variables, you can move tmp and temp to a new location.   I put mine on T:\temp.  If you use onedrive, you can move it to.