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PicoPSU advice?

post #1 of 5
Thread Starter 
Hi all. I'm about to start collecting parts for a HTPC/server build, and I'm thinking about using a picoPSU (very little case space and noise is an issue)

What sort of wattage pico would I need for this build? Would 120W cover it?

CPU: Intel Core i3-2100 3.1GHz Dual-Core Processor ($111.99 @ SuperBiiz)
CPU Cooler: Silverstone NT07-1156 40.0 CFM CPU Cooler ($19.99 @ NCIX US)
Motherboard: ASRock H67M-ITX Mini ITX LGA1155 Motherboard ($91.97 @ Newegg)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1333 Memory ($42.99 @ Newegg)
Storage: Western Digital Caviar Green 2TB 3.5" 5400RPM Internal Hard Drive ($139.99 @ Adorama)
Storage: Western Digital Caviar Green 2TB 3.5" 5400RPM Internal Hard Drive ($139.99 @ Adorama)
Storage: OCZ Agility 3 60GB 2.5" Solid State Disk ($49.98 @ NCIX US)
Case: Thermaltake VL52021N2U Mini ITX Desktop Case w/200W Power Supply ($55.99 @ SuperBiiz)

Also I might be looking at doing some light (but modern) gaming, in which case the Radeon 7750 seems the best (single-slot) power/performance choice - but it can pull ~45W going full-tilt... Would 160W cover that? Or even a 120?

It's been a long time since I built a PC, so I'm struggling to work out the start-up load & the various rails.

Is there any real advantage with going for an i3-2120 over the 2100?

Thanks for any help.
post #2 of 5
I have this picoPSU in a ITX case but only one SSD and it pulls may be 60W max. Each HDD should be 10W max each. I would go with a wide voltage version, the red one (vs yellow). Wide voltage let you use some notebook PC adapters. There are a lot of 90W to 120W choices.
post #3 of 5
Thread Starter 
Thanks a lot.

Do you think I'd be able to get away with an i5-3570k? Not overclocked, but the upgrade to HD4000 graphics seems pretty significant, and I would really like to play some games...
post #4 of 5
The i3-3225 with HD4000 should be out real soon now (less than a month?).
post #5 of 5
Quote:
Originally Posted by jncr View Post

Thanks a lot.
Do you think I'd be able to get away with an i5-3570k? Not overclocked, but the upgrade to HD4000 graphics seems pretty significant, and I would really like to play some games...
That's a 77W TDP CPU. It should be ok for 120W PSU. If you are concerned, use a regular ATX PSU and play a game on the setup. Use a Kill-a-watt to judge whether it is below 120W. Remember to take ~80% of the meter reading, to remove the rough PSU waste. Our 1st gen i7 + GTX560 Ti gaming machine runs at ~240W all in.
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