What is my motherboard size

[517384]

My motherboard is 20.7 inch by 8.3 inch (PC is a HP 571889-001 XW9400 Workstation)
I have no clue what size case to buy
Plz help

[two posts merged by moderator]

 

[ZRace]

Are you sure about those measurements? Cause I have yet to see any boards that are more than twice (!) as long as they're wide. Also, if it is true, your board probably is a proprietary solution that isn't compatible with anything else, as none of the ATX form factor standards allow 20+ inches in one direction.

So, probably no case out there that could fit it, unless you're able to find the specific HP OEM case this mainboard originates from.