I have a EX495 and a EX485. I have upgraded the RAM to 4Gb 'cause it was easy from everything I have read... now after successfully accomplishing this I am thinking about upgrading the CPU.

I have really read up a lot about this but there is so much written that I thought that I would ask to verify if I understnad correctly...
The EX495 has a E5200 chip and therefore can go into the EX485, but my only concern would be that I might have to start messing with the BIOS, which is something which I am not yet confortable to do.

Can anyone confirm whether the E5200 from the EX495 can go into the EX485 without having to modify the bios and have the desired results?

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EX485 1xWD RE3 1TB, 4xWD 'Green' 2TB;
EX495 1xSeagate 1.5TB, 8xWD 'Green' 2TB, Sans Digital TR5M-B
Vista Bus, Toshiba M9-13A, 4GB RAM;
Win7, Intel i7-920, Asus P6T, 6GB RAM, WD VelociRaptor 300GB, 2xWD RE3 1TB;
PS3 40GB
Linksys E3000
iPhone 3GS
iPad 2

Review this guide and it will provide you the information your looking for:

http://www.mediasmartserver.net/2010/03 ... d-mirrors/

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Exploring the possibilities!

Migrated from WHS2011 to WS2012E: HIGHLANDER

~ Norco 4220 Enclosure
~ Gigabyte GA-990FXA-UD5
~ AMD Phenom II X4 995 3.2 GHz
~ 8 GB Corsair Vengeance DDR3 1600 (PC3 12800)
~ 3 Supermicro AOC-SASLP-MV8

I upgraded from a stock E5200 from someone else's EX495 to my 485 and bios mods were required for the chip that I used. You can see my post regarding chip specifics here: viewtopic.php?f=17&t=9724