![1st upgrade I did to this (not stock) hp z400 I got from my dad's workplace: Added a GTX 980Ti : r/pcmasterrace 1st upgrade I did to this (not stock) hp z400 I got from my dad's workplace: Added a GTX 980Ti : r/pcmasterrace](https://i.redd.it/w3ujpftzgfea1.jpg)
1st upgrade I did to this (not stock) hp z400 I got from my dad's workplace: Added a GTX 980Ti : r/pcmasterrace
![HP Z400 Workstation Motherboard Tested X58 Motherboard 586968-001 586766-002 NEW 610839172856 | eBay HP Z400 Workstation Motherboard Tested X58 Motherboard 586968-001 586766-002 NEW 610839172856 | eBay](https://i.ebayimg.com/images/g/mp8AAOSw9jdejb84/s-l1600.jpg)
HP Z400 Workstation Motherboard Tested X58 Motherboard 586968-001 586766-002 NEW 610839172856 | eBay
![Amazon.com: Renewed HP Z400 WorkStation Intel Xeon CPU W3520 8Gb RAM 500GB HDD DVI Windows 10 With 30 days Return, 90 Days Exchange : Electronics Amazon.com: Renewed HP Z400 WorkStation Intel Xeon CPU W3520 8Gb RAM 500GB HDD DVI Windows 10 With 30 days Return, 90 Days Exchange : Electronics](https://m.media-amazon.com/images/I/21-C7yxc1LL.jpg)
Amazon.com: Renewed HP Z400 WorkStation Intel Xeon CPU W3520 8Gb RAM 500GB HDD DVI Windows 10 With 30 days Return, 90 Days Exchange : Electronics
![Amazon.com: HP Z400 Workstation W3565 Quad Core 3.2Ghz 16GB 1TB 2TB Q2000 Win 10 Pre-Install (Renewed) : Electronics Amazon.com: HP Z400 Workstation W3565 Quad Core 3.2Ghz 16GB 1TB 2TB Q2000 Win 10 Pre-Install (Renewed) : Electronics](https://m.media-amazon.com/images/I/31a76zAJClL._AC_UF894,1000_QL80_.jpg)
Amazon.com: HP Z400 Workstation W3565 Quad Core 3.2Ghz 16GB 1TB 2TB Q2000 Win 10 Pre-Install (Renewed) : Electronics
![Upgrading Bios; Upgrading Device Drivers - HP Z400 Maintenance And Service Manual [Page 35] | ManualsLib Upgrading Bios; Upgrading Device Drivers - HP Z400 Maintenance And Service Manual [Page 35] | ManualsLib](https://static-data2.manualslib.com/product-images/67/6671/667065/raw.jpg)
Upgrading Bios; Upgrading Device Drivers - HP Z400 Maintenance And Service Manual [Page 35] | ManualsLib
![Media Composer - HP Z400: How to tell the difference between two generations of workstations - Avid Community Media Composer - HP Z400: How to tell the difference between two generations of workstations - Avid Community](http://community.avid.com/cfs-file.ashx/__key/CommunityServer.Components.UserFiles/00.00.08.21.44/Gen2.jpg)
Media Composer - HP Z400: How to tell the difference between two generations of workstations - Avid Community
![Opened my HP Z400 for some cleaning and replacing a SATA cable that died. It runs TrueNAS and Plex. I ziptied this 120mm fan in the front as it runs 24/7 : Opened my HP Z400 for some cleaning and replacing a SATA cable that died. It runs TrueNAS and Plex. I ziptied this 120mm fan in the front as it runs 24/7 :](https://preview.redd.it/opened-my-hp-z400-for-some-cleaning-and-replacing-a-sata-v0-tyo9m7q7olo81.jpg?width=640&crop=smart&auto=webp&s=c6cdccb58c7dd9d10daabb331fd56b5cdfcfd8e3)