Hi, that looks like a nice little system, and similar to a couple I've done recently.
You say the CPU is weak but I imagine that for it's intended use a couple of Haswell cores @ 3GHz doesn't feel slow, and is in fact efficient and cheap!
The first system I did was a G3240 or G3250 (I don't recall exactly which now), Gigabyte H81M-S2H (cheapest board with two digital display connectors) and 2x4GB RAM.
I used a Seasonic S12II-330 I had spare and housed it in Antec VSK3000 case. The case was cheap but quiet cheerful. Thin and light metal but not awful, with reasonable build quality and tidy understated look. I used an Arctic Cooling Alpine 11 Pro, that had to be fitted 90° to recommended due to interference with the RAM, but doesn't seem to matter. Didn't try the stock cooler but probably not bad at idle, the Alpine was very quiet and didn't ramp much, even on the BIOS 'silent' profile.
I found the RAM would run at max (IIRC) of 1400MHz due to the CPU/board/chipset but the machine was still pleasingly brisk for basic office tasks, running Windows 7 to match the machine it was replacing. (Old people not keen on change for the sake of it!) Vastly faster and quieter than the athlon x2 it replaced.
Over all I was really pleased with it as a budget build, turned out nicely quiet, with the PSU as the dominant noise source, even with a 500GB Samsung HDD added from old machine.
More recently I've done very similar build for my brother with Skylake platform.
Pentium G4500, Gigabyte H110M-S2H, 2x 4GB DDR4, Alpine 11. This was built in to previous Antec Solo, with my other S12II-330 (I'm all out now!) and 120GB SSD.
Also made a nice quiet brisk little office machine on a budget, that was nicely quiet.
I figure any of these builds could be expanded on if more were needed of them, up to i5 or even i7 CPU, more RAM, more drives and even modest video cards.
I know the S12II-330 will drive my sig system (i7 2600K + GTX 560Ti) under full load because it did!
Enjoy your system
Regards,
Seb
