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 Post subject: video card for picoPSU-120-WI-25
PostPosted: Mon Nov 02, 2015 5:17 am 
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Joined: Thu Dec 01, 2011 9:35 am
Posts: 39
Location: Italy
Hi, i'm looking for a low-powered discrete video card for my PC based on:
picoPSU-120-WI-25 (max 80W continous load on the 12V rail)
mainboard: ASRock Q1900M (with Intel Celeron J1900)
RAM: 2* Corsair Vengeance 1600MHz 4GB DDR3
HDD: Toshiba PX3006E-1HL0 HDD 2TB SATA2
(+ the usual HID devices)

As candidates, i'm considering:
  • Radeon HD 7750 1GB (power consumption too high?)
  • Radeon HD 6450 / Radeon R5 230
  • NVIDIA GeForce GT 710
  • NVIDIA GeForce GT 720
  • NVIDIA GeForce GT 730 GDDR5 (best fitting choice?)

Besides fitting inside the picoPSU power restrictions, i am looking for the best price/performance compromise.
EDIT: i've found some good tips here.

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 Post subject: Re: video card for picoPSU-120-WI-25
PostPosted: Sat Nov 07, 2015 2:52 pm 
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Joined: Tue Aug 14, 2012 4:46 pm
Posts: 3
Ive been running my HD7750 using the very same Pico PSU for 3 years - it runs perfectly. :)


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 Post subject: Re: video card for picoPSU-120-WI-25
PostPosted: Sun Nov 08, 2015 9:06 am 
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Joined: Thu Dec 01, 2011 9:35 am
Posts: 39
Location: Italy
chrisp7 wrote:
Ive been running my HD7750 using the very same Pico PSU for 3 years - it runs perfectly. :)

What CPU and what video card model are you using?

According to my math on full CPU+GPU load i will have: 35W (J1900 CPU) + 50W (Radeon HD 7750) = 85W

Maybe undervolting the GPU could help, or i should get the right video card that comes undervolted from the manufacturer.

EDIT: In the end i've bought a PowerColor HD7750 1GB.
I've immediately undervolted it in the CCC and reduced the GPU clock a bit.
I've checked the +12V rail voltage sensor with Speedfan when the GPU is at full speed, and it stays within the ATX specs (11.83v), so i guess it should be safe.

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