I have problem, when I try to open map, game freeze and only with task manager I can close it. Interestingly that happens when I fly over Flanders or Verdun, over Alsace and Marne map work well. I don't have any map mod installed.
There are a number of threads on this forum about computer upgrades which you might benefit from reading. There are many here who will answer any questions you might have about the suitability of any parts you might be considering.
Case: Cooler Master Storm Trooper Pwr Sup: OCZ, GameXStream,1000-Watt MB: Asus Maximus VI Extreme Mem: Corsair Vengeance (2x 8GB), PC3-12800, DDR3-1600MHz, Unbuffered CPU: Intel i7-4770K, OC to 4.427Ghz CPU Cooler: Cooler Master Seidon 240M Liquid CPU Cooler Vid Card: ASUS GTX 980Ti STRIX 6GB OS and Games on separate: Samsung 840 Series 250GB SSD Monitor: Primary ASUS PG27AQ 4k; Secondary Samsung SyncMaster BX2450L Periphs: MS Sidewinder FFB2 Pro, TrackIR 4