Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
http://www.silentpcreview.com/Serenity_i7_Sandy_Bridge_PC
That will certainly help. It's almost silent when idle (SPCR has a sound floor of 10 dBA) and extremely quiet under load: 11 dBA idle, 12.5 dBA Prime95 + Furmark. Thus passive is overrated; with a well designed case, with good fans and...
YOU DO NOT NEED TO REINSTALL. MODERN OPERATING SYSTEMS WILL NOTICE THE CHANGE IN CORE HARDWARE DEVICES AND REINSTALL ALL THE DRIVERS.
I am speaking from experience. I have swapped motherboards several times on the same OS installation (Windows and Linux); there is no need to reinstall the OS...
Yes, cause the so-called "kits" are extremely different from just buying standalone two, four or eight identical DIMMs. There is no cost; the kits are just pairs of DIMMs, nothing special except for marketing.
You don't need to. Just swap them, boot, Windows will reinstall all the basic drivers for everything. Reboot and install updated drivers for the components.
G620T, i3 2100T and i5 2390T are all 35W dual cores; the OEM i5 also has Turbo Boost.
i5 2500T is a 45W quad core. Alternatively, get the Supermicro X9SCV-Q and stick a mobile CPU in it.
Bridge the green wire from the main PSU to the slave one (that's not connected to the motherboard). That way when the motherboard turns off it pulls the green wire low and both PSUs will turn on.
That's not the true. The OS can stick threads on any cores it wants; I can even manually set that, with Task Manager or similar tools; the option is called process affinity, by default it's set to all cores so the OS is free to move the application's threads as it sees fit - you should not...
JonnyGuru measured almost 0% voltage regulation, which is absolutely fantastic; it does not get any better than almost no fluctuation in voltage at all.
Seasonic Platinum 1000W wins hands-down.
Probably not.
Intel desktop CPUs support a maximum of 1333 MT/s CL9. Anything faster is unsupported and COMPLETELY useless - it provides zero measurable benefit in any real world desktop workload.