well i have two the one is for mining zcash and the other is my gaming and Development rig and 2 notebooks for several stuff:
Machine No.1 mad Miner
Intel XEON E5 20 Thread CPU 20* 2,7Ghz
32 GB Noname DDR 4 2100 Mhz Ram (blinking yellow)
3* AMD RX 480 Nitro OC from Sapphire with 8 GB each im using them mainly for mining
250 GB SSD Kingston Furry runs a Linux Mint OS
Gigabyte X99 Mainboard the cheapest ive found with xeon Support
Zalman 1200 W Power supply
couger Panzer Titanium case
Corsair Hydro 50 Watercooling for the CPU
24 DVD Burner - i dont know why
Machine No.2 (i am writing from here)
Intel XEON 12 Thread CPU L5540
Gigabyte X58A-udr5 mainboard
Corsair Hydro H50 CPU Watercooling
Corsair Dominator DDR III 2000 Mhz Ram 6GB
AMD RX 480 Nitro OC+ 8GB
AMD FirePRO V 5900 2GB
750W LC Power prophecy II in blue!
2 DL 24x DVD Burners
2 250GB Toshiba Q300 SSDs
1 Kingston SDDNOW 120GB SSD
2 Hitachi 2TB 24/7 Server HDDs
Corsair Obsidian 800D case
Notebook No,1
HP Elitebook 2760P
Intel Core I7 CPU 2,7 Ghz up to 3.2 with TB
8 GB DDR III 1600 mhz Ram from hynix
250GB SATA III SSD from Intenso
1366*768 Resolution multitouch screen IPS
Intel Wifilink 6200 3 Antennas plus HP Broadband module 3G+
2 batteries up to 10 Hours of real usage time
Docking Station with DVD Burner display Port etc
Notebook No.2
Dell latitude XT i know its weak but i refurbished it bought expansive parts etc
CPU intel Core2Duo L7200 2 * 1.33Ghz
4GB DDR II Ram 800 Mhz
60 GB chinese ZIF SSD brings a massive boost
AMD HD xpress 1200 graphics 256 MB
Intel wifilink 5200 + dell DW 5540 3G Modem
2 batteries for up to 7,5 Hours of ussage
1280*768 touchscreen by Ntrig
my TV Box (used for game testing etc)
Amlogix SX 905 CPU 4 * 1.5 Ghz ARM
2GB LP DDR 3 embedded Ram
16 GB noname flash
64 GB micro SD Kingston class 10
Grphics Mali 450 GPU 8 core 4K support
2 USB Ports 1 100mbit lan, spdif, HDMI, micro SD port, AV out infrared
Androoid 6.1 rooted and overclocked
i had a thinkpad x220 but i ve sold it last week