Let’s start off with the basic compares:

Application Performance - WinRAR 3.90 x64 - i5 661 CPU @ Stock

Gaming Performance - Far Cry 2 - i5 661 CPU @ Stock

Application Performance - AutoCAD 2010 x64 - i5 661 CPU @ Stock

The H55H-I performs admirably in  our benchmark suite, placing mid to top tier in every benchmark we threw at it.

Power Consumption

Our power consumption testing utilizes the same batch of components under similar circumstances in a bid to monitor variances between idle and CPU load conditions. We install the vendor supplied power saving utilities on each board (when available) and enable power saving modes that don't involve any kind of underclocking or CPU core frequency modulation in order to run an apples to apples comparison.

ATX PSU switching losses are absent from our figures because we monitor power consumption directly at the DC rails of the PSU. These figures measure only the CPU, motherboard and memory DC power draw and exclude any other peripherals, such as cooling fans and hard drives etc.  AC power consumption at the wall will be anywhere from 15~40% higher than these figures depending upon the efficiency of your power supply.

Motherboard Power Consumption - Idle Power - i5 661 CPU - IGP

Motherboard Power Consumption - HD Video Playback - i5 661 CPU


The DC power consumption figures are almost identical to Intel's DH57JG in every day usage.

 

Overclocking

The inclusion of over-voltage options for CPU VCore, VTT and VDIMM open the door to a reasonable level of overclocking with Clarkdale processors:


4GHz is attainable on the H55H-I, surpassing the Intel DH57JG.

We added a 0.1V voltage boost to CPU VCore (ignore the 2.20V shown in the CPU-Z screenshot, it's around 1.23V), VTT and VDIMM for the above screenshot and proceeded to pass two hours of Linpack without a glitch. The BIOS does allow you to push higher if you want to, although we think it’s probably safe to stick at a 4GHz limit given the perceived abilities of ECS’ VRM (3 Phase for VCC using 30 amp FETs, giving a  theoretical 90 amp maximum under a best case scenario). Bear in mind that if running with the IGP active, you’ll be limited somewhere around 165BCLK anyway, because there is no way to change the IGP clock ratio in BIOS or increase voltage to the graphics core.

For those of you wondering about Lynnfield overclocking, do yourself a favor and don't take any of the four core processors above stock on this board - there's not enough power on tap to sustain the load.

ECS H55H-I – Mini-ITX at a Sensible Price. Board Features
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  • gaidin123 - Thursday, May 06, 2010 - link

    I've had this board for a couple weeks now paired with an i3-530 and it's been solid running at just under 160Mhz Bclk at stock voltage. It's by far the cheapest p55/h55/h57 mini-itx board yet it has more than enough features for most imho. Lian-li's got a few mini-itx cases out and hopefully the lan-gear guys get their mini-itx gamer case out at a reasonable price soon...

    Gaidin
    Reply
  • shamans33 - Thursday, May 06, 2010 - link

    Can IGP and Discrete Graphics be enabled at the same time? Reply
  • Rajinder Gill - Thursday, May 06, 2010 - link

    No that's a lock-out by Intel afaik.

    later
    Raja
    Reply
  • howiey - Thursday, May 06, 2010 - link

    Thanks for this review. It was thorough, concise and it actually addresses what many want to know aside from the OC issues. For example, S3 suspend is crucial for HTPC and basically a dealbreaker for many on the Zotac mini-ITX boards, yet a surprising number of reviews ignore this in their reviews, focusing on Crysis benchmarks at 5 different resolutions. Worse is that the conclusion is that it basically performs the same as other H55 boards, so NO new information is gained by the reader. That you read the comments about HDMI / DVI simultaneous output and actually followed up is commendable, so thanks for your efforts. Reply
  • Rajinder Gill - Thursday, May 06, 2010 - link

    Thanks for the feedback! Reply
  • Mr Perfect - Thursday, May 06, 2010 - link

    I was very interested in this board when they said it supported i7 chips, but a little less so now that I see the 85w limit. That cuts the supported i7s down to exactly one, the 82w i7-860S. Still, no one else bothered to enable the 860S on their H55/57 m-ITX boards, so they get exclusive credit for that. Reply
  • Grug - Thursday, May 06, 2010 - link

    I just built one of these for my sister. i3-540 CPU and the WinSis mitx case at Newegg. I've never built one that small and was amazed how much power was packed into a tiny little case just the size of two laptops stacked on top of one another.

    For anyone who doesn't game and need an external GPU and just wants a high performance day to dayer, these ITX solutions are as good as it gets. I would replace my full sized ATX case in a heartbeat if the damn GPU vendors weren't such power pigs. I want a low profile GPU that works at under 75W and allows me to play modern games at 1900x1200. Until that happens (probably a few years at least), I consider NVidia/ATI inept.

    My only disappointment was that you couldn't undervolt. I wanted to undervolt it a bit to try to cut down even further on the already low heat output.
    Reply
  • dlmartin53 - Thursday, May 06, 2010 - link

    I know this is off subject but it seems the AMD motherboard scene is non-exsistant judging by the fact you have to go way back to see any mention of that other camp. You do mention them in testing data but no AMD Mboards reviewed for many months? I like all the Intel coverage, but would like to see more than just reviews of the latest AMD chip coming out.

    I will get off my soapbox now, thanks.
    Reply
  • Rajinder Gill - Thursday, May 06, 2010 - link

    Hi,

    Last AMD board we reviewed was the - the ASUS M4A89GTD Pro in March:

    http://www.anandtech.com/show/2959

    We'll be adding some 890FX coverage in at some point - got another couple of guys working with me now, so things should improve.

    Regards
    Raja
    Reply
  • nubie - Thursday, May 06, 2010 - link

    Well, they did 'invent' the DTX specification, where you get 2 slots. Good both for the dual-slot gaming crowd, and the people who want wifi and a RAID card, or a single slot video card.

    After they released the DTX spec I was excited, but I don't think a single board came out of it.

    Those in the know will buy an HP "DTX" motherboard from their SFF systems, but being OEM I don't think they are the greatest motherboards (no idea if any of them support the Athlon II x2, the only chip I would want in an AMD mITX/DTX system. ) Also they use a non-standard connecter, not good. Pluses would be dual-channel ram and a pcie x16, but it was a couple years ago, and look where we are today, a whole bunch of boards with those features.
    Reply

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