Hello, My 5-year old HP Z820 just died today. This is the second time and this time it is out of warranty. After hours of attempting to revive it, I have concluded that motherboard is totally dead. I'm going to take it HP service center to see how much it will cost me to repair assuming they still have the parts. I am pretty sure repair will be costly. If it costs between $600 ~ $1000, would you have HP repair it or build a new one? Here is its spec: Dual E5-2687W 3.1Ghz with liquid cooling 64GB DDR3 ECC I don't use it for work anymore, I now mainly use it for gaming (just got 1080Ti) and some photo editing. What do you think? If I build a new one with latest i7 or Ryzen, would it be a upgrade or downgrade for me? My Z820 handles everything I throw at it really well, I haven't felt the need to upgrade it. In gaming, it probably won't make any notifiable difference but in tasks that require raw processing powers I think 5 year old dual xeon would still beat the best & latest i7. I search around the motherboard for Z820 and it is really expensive. There are unauthorized shops selling refurbished at lower price but not sure if I can trust them. I'm afraid it might fail soon after. I am also considering of buying some leftover new Asus or ASRock C602 motherboard from ebay. It won't fit in Z820 case, so I will have remove most components from Z820 and assemble them in different case. Then I will have to buy new heatsink for CPUs and PSU. That will cost me at least $500 and up.