hp proliant ml350 g5

Hi, I currently have an HP Proliant ML350 G5 laying around that I would like to consider for a proxmox ve build. For that I would make an hardware upgrade, so it would get: - 2x Intel Xeon L5420 2.50GHz LGA771 (SLBBR); - Total 32Gb DDR2 667MHz, PC2-5300F-5 (I believe it's the max it can take)...