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Is 192W enough power to run this HTPC?

post #1 of 6
Thread Starter 
Hi guys,

I'm currently creating a new HTPC. I wanted it completely fanless, but it seems it's not going to be possible. Its specs are:

Motherboard: ASRock H61M-ITX
Hard Disk: OCZ Vertex 3 128 GB
Processor: Intel Core i3 2120T + COOLER CPU THERMALRIGHT HR-02 MACHO
RAM: 2x DIMM 4GB DDR3 PC-1333 SDRAM
Graphics Card: Shappire Radeon HD7750 ultimate (fanless)
Power Supply: FSP Aurum Xilenser 500 W


However, since the PSU is way too big, it wouldn't fit in the case I want to build and, if it did, the heat it would make would be too high and it would raise the inside-the-case temperature. This is why I thought of a much less powerful PSU, which is at the same time very, very small: a picoPSU. Concretely this one: http://www.ebay.es/itm/picoPSU-160-XT-192W-Adapter-Kabel-mit-USA-Netzkabel-with-power-cord-/280846541969?pt=PC_Netzteile&hash=item4163c22491

Two questions:

First: Would this little PSU be enough to power my setup? I say this because, in spite of what the graphics card box says (400W PSU required), since it's a really low demanding graphics card (in terms of power), I don't think it exceeds 75W (due to the limitations of powering of the PCI slot). The processor itself consumes 35 W...

Second: I wanted to run it fanless, but the processor goes beyond 55ºC and reaches 65ºC peaks. I'm afraid those are bad temperatures for such a processor, which TJ Max is 85ºC. Which is the appropiate rank of temperature of this processor? I guess going beyond 50ºC is no good. With the fan, it never goes beyond 45ºC...

Thank you very much and pardon my low level of english (I'm from Spain)!
post #2 of 6
Should be fine.
post #3 of 6
The PSU should be fine, and there's nothing to worry about with the fanless CPU temps, they're fine.
post #4 of 6
tjmax specifically exists to prevent damage to a cpu, at least at stock clocks and volts. It might affect the cpu long term if you're often within 10c of tjmax, but this is over many years. 20c means it will not struggle whatsoever.
Heisenberg
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Heisenberg
(17 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 3930k Asus RIVE HIS HD7970x3 4x4GB Corsair 2133 
Hard DriveHard DriveHard DriveHard Drive
Crucial m4 256gb g.skill phoenix pro 120gb 300gbx2 velociraptors 640gb & 2tb wd green storage drives 
CoolingOSMonitorKeyboard
dd m6 wb + koolance rive + ek fc7970x3 Windows 8 Pro 27" LED Cinema + 27" Auria both 2560x1440 Mionix Zibal 60 
PowerCaseMouseAudio
Antec hcp1200 Case Labs TH10 Mionix Naos 5000 Asus Xonar d2x 
Audio
Fiio e9 + Beyerdynamic dt880 600ohm 
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post #5 of 6
Thread Starter 
Thank you guys, I'll try it "fanlessly" then. But there's something which worries me even more than the temperature of the CPU itself: the temperature of the kit. I mean, if the CPU reaches 65-70ºC, the GPU as well... The temperature inside the case may go very high, and the picoPSU recomments not going beyond 60ºC. And how come 192W will be fine when the GPU says it needs strictly 400W? I know it doesn't but the box says so :S

Thank you all!
post #6 of 6
The 400W is just to cover things like crappy no-name units that don't output enough 12V to feed a modern system at 200W.
Tiger
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Seagate 7200.12 1TB Samsung F3 1TB LiteOn IHAS124-19 CoolerMaster Hyper 212 
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Tiger
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Phenom II X4 955 BE Asus M4A88TD-V EVO/USB3 Radeon HD 4870 1GB 4GB Crucial 1333Mhz DDR3 
Hard DriveHard DriveOptical DriveCooling
Seagate 7200.12 1TB Samsung F3 1TB LiteOn IHAS124-19 CoolerMaster Hyper 212 
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Windows XP Professional Dell 2001FP Cherry Black Corsair TX650 
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Fractal Design R3 
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