ECS LIVA X Review: A Fanless Bay Trail-M mini-PC
by Ganesh T S on January 16, 2015 11:30 AM ESTPower Consumption and Thermal Performance
The power consumption at the wall was measured with a 1080p display being driven through the HDMI port. In the graphs below, we compare the idle and load power of the ECS LIVA X with other passively cooled PCs evaluated before. For load power consumption, we ran Furmark 1.12.0 and Prime95 v27.9 together. The numbers are not beyond the realm of reason for the combination of hardware components in the machine.
Load power consumptionis slightly higher in the LIVA X, but that is to be expected with the bump in the clock speeds compared to the original LIVA. The LIVA and the LIVA X turn out to be amongst the most power efficient passively cooled PCs that we have evaluated
In order to evaluate thermal performance, we first ran our test for load power consumption and made sure that the unit wasn't getting throttled. In order to determine the efficiency of the cooling system, we first loaded up the CPU alone using just Prime 95 for around 30 minutes. This was followed by addition of the GPU load (FurMark) for another 30 minutes, and then removal of the CPU load for 10 minutes. The system was then left idle. The various clocks in the system as well as the temperatures within the unit are presented below.
One thing to note is that the cores are configured to run at the turbo speed (2.25 GHz) when the system is stressed. Unfortunately, half-way through our CPU + GPU load test, the system started throttling, with the CPU clocks going as low as 1.1 GHz (from 2.25 GHz) and the GPU clocks going as low as 200 MHz (from the 760 MHz loaded state). The drops in the frequency can be directly correlated with the core temperature graphed below at the same time. Even though the CPU doesn't reach the maximum junction temperature of 100 C, ECS has opted for precautionary throttling at 96 C itself.
The throttling was very surprising because ECS has opted for a very thick thermal heat sink (evident in the increased weight of the system) which should potentially perform much better compared to what was in the ECS LIVA. It turned out that the media samples we received had the thermal pads in the wrong place. Customer shipments will shift them a bit to resolve the overheating issue.
Another important aspect to keep note of while evaluating fanless PCs is the chassis temperature. Using Seek Thermal's thermal imager, we observed the chassis temperature after the CPU package temperature reached the steady state value (and immediately after thermal throttling started) in the above graph.
Even though the internal core temperature was close to 100 C, the chassis itself never got too hot to touch. As our thermal imager showed, the maximum external temperature was only 59 C.
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Murloc - Sunday, January 18, 2015 - link
a smartphone is good enough to read recipes, there's no extensive writing anyway.Utnnyan - Thursday, January 22, 2015 - link
Do you cook? You need something that you don't have to hold in your hand. We have a small mini-pc with a LCD in our kitchen and the reason we got it was because my wife was sick and tired of viewing recipes on her iPhone (and even the 6 wasn't cutting it).speculatrix - Wednesday, January 28, 2015 - link
get a waterproof tablet like the Sony Z tablets and the stand with the magnetic charger. you won't kill it if you splash water on it.Wwalter ones - Friday, January 16, 2015 - link
Any thoughts on using this as the receiving pc to stream steam games at 1080p?BigLan - Friday, January 16, 2015 - link
Could ECS release a version of this with Windows 8/bing? It'd save users a bunch compared to having to buy a separate windows license.sonicmerlin - Friday, January 16, 2015 - link
So could you connect a USB cablecard tuner and an HDD and turn this into a DVR?mm0zct - Thursday, April 23, 2015 - link
I'm using an original LIVA as an excellent DVR/TV tuner using a USB DVB-T tuner (I'm in the UK).A USB3.0 hard disk provides storage for recorded TV, along side the growing mkv collection as I work my way through my DVD and BluRay collection. The windows media centre is probably the best Freeview TV interface I've ever used, unfortunately it requires 8.1pro plus another $10 or something for the media centre, but on the LivaX you can run Windows7 on an ssd, which comes with media centre, or just use Kodi. The advantage of using Windows 8.1 is that the "Modern" UI works fairly well on a TV, but unfortunately doesn't interact well with the media centre remote, so a keyboard/touchpad or accelerometer-wand hybrid is recommended for controlling it.
flyingpants1 - Friday, January 16, 2015 - link
Mini-ITX is still better for 90% of consumer applications.zodiacfml - Saturday, January 17, 2015 - link
look at that power consumption. they should have maintained that usb power source since most displays have USB already. I imagine putting this on top of a ceiling mounted projector.the only value would be its VGA interface. can't wait for Intel's Compute Stick.
ganeshts - Saturday, January 17, 2015 - link
The problem is that the power consumption starts ramping up when one adds a mSATA disk and adds power-hungry peripherals on the three USB ports. Given those capabilities, it is impossible for ECS to get by with a micro-USB power connector. There are no commercial 'wall-warts' with a micro-USB power connector that can deliver upwards of 30 W.