Whs Rebuild

Hi
I am not sure if this post belongs in here or the self builds and components section, but this section seems a bit more active. If it is the wrong section, please can one of the mods move it.

I am looking for some advice on rebuilding one of my Windows Home Server’s. I have not kept up to date with the latest hardware on the WeGotServed forum in the last few years. I also have no experience with proper server grade components.

My current setup is:
CPU = Intel Core2Duo E7600
MB = Gigabyte EP45-UD3R
RAM = Crucial 4GB (Cannot remember exact model)
GPU = None
HDD = 11 drives, a mix of 1 and 2TB drives
Case = Lian-Li 343B
OS = WHSv1
PSU = Zalman 850W


My New Setup
CPU = Required
MB = Required
RAM = Required
GPU = Integrated GPU Required
HDD = Keep the existing 11 drives plus 4 new 3TB drives and a SSD for the OS
Case = Keep the Lian-Li 343B
OS = WHS2011 (Already Purchased)
PSU = Keeping the Zalman 850w


Reason for the upgrade
The existing server is getting a bit long in the tooth, 3 of the 4 RAM slots have given up the ghost, the Ethernet port has become very twitchy when loaded, and it’s also a bit power hungry for my liking.


What the server is used for

• Backing up all of the household computers
  
• Storing and streaming all of my media files, loss less audio, DVD & Blu-Ray ISOs, and various other video formats. Media is streamed to iPhone, Android tablet, PS3, Xbox, HTPC and RaspberryPi (when I get it setup)
  
• Centralised storage for all the documents
  
• The server won’t be on all week, only about 3 days a week, for the rest it will either be off or asleep

Hardware Requirements

Motherboard

• I do believe that I should be looking at a proper server grade motherboard if possible, but I don’t even know where to start.
  
• Obviously it would need as many SATA ports as possible or the expandability to support more ports. My case has the potential to support 42 drives, or possibly 60 with a little modding. I will be using my existing 11 drives plus 5 new drives.
  
• 6Gbps would be preferable.
  
• USB3 connections would also be preferable, and also thunderbolt.
  
• ATX size
  
• Obviously I want it to be a low power system, but still powerful enough to handle transcoding and streaming.
  
• Support for integrated graphics is also a must.
  
• Support for hard drives greater than 2.2TB
  
• I have no use for RAID, as I use StableBit DrivePool

CPU

• A low power requirement would be great, but enough processing ability to handle transcoding and streaming.
  
• Integrated graphics is a must.
  
• Intel is my preferred brand.
  
• No overclocking is required, but may possibly be underclocking, to save power.

RAM

• Any will probably do, looking for between 8 and 16GB.

Budget
I am looking to spend up to £400 - £500 for the CPU and Motherboard. I am not including the RAM in the budget, so long as it is not ridiculously expensive.

I think that that is all of the information that is required, if I think of anything else, I will add it later. Thanks in advance for any responses.