H81TM-ITX R2.0 VGA card
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=1830
Printed Date: 26 Dec 2024 at 1:40am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: H81TM-ITX R2.0 VGA card
Posted By: aquelito
Subject: H81TM-ITX R2.0 VGA card
Date Posted: 26 Jan 2016 at 6:09pm
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Hello there, I would like to purchase this mobo as it features a dc-in jack. http://www.asrock.com/mb/Intel/H81TM-ITX%20R2.0/ However, I would like to install a Celeron G1820 and add a discrete GPU, let's say this R7 240 : http://www.amazon.fr/Asus-R7240-SL-2GD3-L-Carte-graphique-Express/dp/B00J0SATEA/ref=sr_1_1?ie=UTF8&qid=1453730503&sr=8-1&keywords=r7+240+passive Two questions : - Can I fit the card straight into the PCIe x 4 slot or do I have to use that kind of riser ? http://eshop.sintech.cn/flexible-pci-express-x4-to-x16-riser-card-p-608.html - Would the DC-IN jack be able to power the R7 240 + the Celeron G1820 ? Let's assume my power brick is certified for 130 W. Thanks a lot for your answers, will determine if I choose this board !
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Replies:
Posted By: Xaltar
Date Posted: 26 Jan 2016 at 7:32pm
| The PCIe x4 half slot is open ended so the card should be able to install directly into it. As for power requirements the R7 240 and celeron G1820 should be able to run on a 130w power brick but as I have not built a system on that board or any like it I cannot say with absolute certainty. It will also depend on what additional peripherals/fans will be installed in the system. |
Posted By: aquelito
Date Posted: 26 Jan 2016 at 8:42pm
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Hi Xaltar, Thank you very much for your quick answer. Regarding the power supply, my question was whether a DC-IN onboard jack could run at all that kind of system, regardless the wattage of the power brick. A member of an other forum sugested that a PICO-PSU would be mandatory, a simple DC-IN jack could not handle such a system (G1820, R7 240, 3 x 92 mm rads, one SSD).
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Posted By: parsec
Date Posted: 26 Jan 2016 at 11:57pm
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The specs say this board can be used with up to 65W TDP processors. The Celeron G1820 is a 53W TDP processor. The specs for this board also include this about the DC power supply: Please use a 19V power adapter for the DC jack. his jack accepts dual barrel plugs with an inner diameter of 5.1 mm and an outer diameter of 7.4 mm, where the inner contact is +19 (±10%) VDC and the shell is GND. The user manual lists three compatible power supplies, each of 150W capacity. A video card drawing power only from the PCIe slot, that supplies 75W maximum, would be the greatest single load on the PSU. A review of an R7 240 I found, used with a standard Z77 chipset board and an over clocked i5-2550K, showed the maximum power usage of the system as 122W. Given this information, you might be able to get by with a 150W PSU, but I would not use less than that. How you would supply power to your "3 x 92mm rads", and pump (I assume), I don't know. Your question about, "... regardless the wattage of the power brick.", will depend greatly upon the capacity of the power brick. That is the main variable that cannot be overlooked IMO. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: wardog
Date Posted: 27 Jan 2016 at 12:22am
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Also keep in mind that R7 240 will operate at/in x4, as it is an x4 slot it will be going into. ie: if you plan on gaming with the mid-row titles it may be a sloth. |
Posted By: aquelito
Date Posted: 28 Jan 2016 at 9:29pm
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Yep, too bad the H81 board has not the same specs as the AM1H-ITX (full PCIE, DIMM slots). Why is there such differences ? Anyway, thanks for your answers. I think I am going to go for an other board, with a standard PicoPSU unit. Safer this way :)
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