Many thanks to...

We must thank the following companies for kindly providing hardware for our test bed:

Test Setup

Processor 2x Intel E5-2697 v2
2x Intel E5-2687W v2
2x 12C/24T
2x 8C/16T
2.7 GHz / 3.5 GHz
3.4 GHz / 4.0 GHz
Motherboard GIGABYTE GA-7PESH3
Cooling Corsair H80i
Cooler Master Nepton 140XL
Power Supply OCZ 1250W Gold ZX Series 
Corsair AX1200i Platinum PSU
80 PLUS Gold
80 PLUS Platinum
Memory Kingston 8x4GB ECC DDR3-600 11-11-11 1.5V
Memory Settings XMP
Video Cards MSI GTX 770 Lightning 2GB (1150/1202 Boost)
Video Drivers NVIDIA Drivers 337.88
Hard Drive OCZ Vertex 3
Optical Drive LG GH22NS50
Case Open Test Bed
Operating System Windows 7 64-bit SP1
USB 2/3 Testing OCZ Vertex 3 240GB with SATA->USB Adaptor

System Benchmarks

Power Consumption

Power consumption was tested on the system while in a single MSI GTX 770 Lightning GPU configuration with a wall meter connected to the OCZ 1250W power supply. This power supply is Gold rated, and as I am in the UK on a 230-240 V supply, leads to ~75% efficiency > 50W, and 90%+ efficiency at 250W, suitable for both idle and multi-GPU loading. This method of power reading allows us to compare the power management of the UEFI and the board to supply components with power under load, and includes typical PSU losses due to efficiency. These are the real world values that consumers may expect from a typical system (minus the monitor) using this motherboard.

While this method for power measurement may not be ideal, and you feel these numbers are not representative due to the high wattage power supply being used (we use the same PSU to remain consistent over a series of reviews, and the fact that some boards on our test bed get tested with three or four high powered GPUs), the important point to take away is the relationship between the numbers. These boards are all under the same conditions, and thus the differences between them should be easy to spot.

Power Consumption - Long Idle

Power Consumption - Idle

Power Consumption - OCCT

When we compare the system loads between one processor and two processors, it seems odd that the second processor does not seem to add much to the process at load but a good chunk while idle. Note we are comparing the single socket server motherboard to the GA-7PESH3, but it is still much of a jump. Idle power consumption on these boards is quite high, however these machines are built more for a 24/7 workload.

Windows 7 POST Time

Different motherboards have different POST sequences before an operating system is initialized. A lot of this is dependent on the board itself, and POST boot time is determined by the controllers on board (and the sequence of how those extras are organized). As part of our testing, we look at the POST Boot Time using a stopwatch. This is the time from pressing the ON button on the computer to when Windows 7 starts loading. (We discount Windows loading as it is highly variable given Windows specific features.) 

POST (Power-On Self-Test) Time - Single MSI GTX 770

Like any other server-based motherboard we have ever tested, POST times are long. Half of this is going from pressing the ON button and the management software to do its thing before the CMOS takes over. Even then, the dual server-grade Intel NICs have their own integration sequence, along with the RAID subsystem. It all adds up, and that is why we can cut it down to under 40 seconds by disabling controllers if they are not in use.

Rightmark Audio Analyzer 6.2.5

Rightmark:AA indicates how well the sound system is built and isolated from electrical interference (either internally or externally). For this test we connect the Line Out to the Line In using a short six inch 3.5mm to 3.5mm high-quality jack, turn the OS speaker volume to 100%, and run the Rightmark default test suite at 192 kHz, 24-bit. The OS is tuned to 192 kHz/24-bit input and output, and the Line-In volume is adjusted until we have the best RMAA value in the mini-pretest. We look specifically at the Dynamic Range of the audio codec used on board, as well as the Total Harmonic Distortion + Noise.

Dynamic Range of the GIGABYTE GA-7PESH3

Rightmark: AA, Dynamic Range, 24-bit / 192 kHz

Rightmark: AA, THD+N, 24-bit / 192 kHz

As the 7PESH3 is different to our previous 2P server motherboards in actually having motherboard audio, it should be applauded. The downside is that the ALC892 is the midrange 7.1 Realtek NIC, and is usually outperformed by the ALC898 and ALC1150. For a motherboard that costs $640, I am in two minds as to demand the higher codec. Audio might not be a target for a system like this, however the price demands something better than average.

USB Backup

For this benchmark, we transfer a set size of files from the SSD to the USB drive using DiskBench, which monitors the time taken to transfer. The files transferred are a 1.52 GB set of 2867 files across 320 folders – 95% of these files are small typical website files, and the rest (90% of the size) are small 30 second HD videos. In an update to pre-Z87 testing, we also run MaxCPU to load up one of the threads during the test which improves general performance up to 15% by causing all the internal pathways to run at full speed.

USB 2.0 Copy Times

USB 3.0 Copy Times

The consumer oriented business units at the major motherboard manufacturers have managed to implement a form of USB 2.0 (either in hardware or software) on their products to achieve around 43 seconds in our test. Those that have not implemented this difference hit around the 60 second mark, like the 7PESH3 does. The USB 3.0 also comes out slower than a consumer model due to the use of controllers.

DPC Latency

Deferred Procedure Call latency is a way in which Windows handles interrupt servicing. In order to wait for a processor to acknowledge the request, the system will queue all interrupt requests by priority. Critical interrupts will be handled as soon as possible, whereas lesser priority requests such as audio will be further down the line. If the audio device requires data, it will have to wait until the request is processed before the buffer is filled.

If the device drivers of higher priority components in a system are poorly implemented, this can cause delays in request scheduling and process time. This can lead to an empty audio buffer and characteristic audible pauses, pops and clicks. The DPC latency checker measures how much time is taken processing DPCs from driver invocation. The lower the value will result in better audio transfer at smaller buffer sizes. Results are measured in microseconds.

DPC Latency Maximum

The DPC Latency for the 7PESH3 was a little odd:

The system seems to oscillate between ~100 microseconds and ~300 microseconds. Normally on most consumer motherboards this would happen due to the presence of an abnormal WiFi software stack, or an unoptimized BIOS. Server motherboards historically have done rather poor in this test, perhaps indicating that the server management tools constantly polling temperatures and fan speeds might be the contributing factor.

BIOS and Software CPU Benchmarks
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  • ddriver - Thursday, September 4, 2014 - link

    Why include gaming benches, considering this product is not intended nor optimal for the task, while at the same time prosumer and enterprise tests are completely absent?
  • ATC9001 - Thursday, September 4, 2014 - link

    The gaming benches are just for good FYI, considering most of the audience are gamers/ enthusiasts. However, I do agree I would like to see more prosumer workload benchmarks!
  • ddriver - Thursday, September 4, 2014 - link

    Where is 3D MAX / MAYA 3d rendering? Where is AfterEffects / Premiere / Nuke / Fusion video rendering? Where is Cubase / ProTools / Sonar audio rendering? Where are multiphysics simulations? Where are all the practical workloads that would justify the purchase of a dual socket workstation and that can actually scale up so many cores?

    Instead we got games, everyday office and multimedia applications and 2 completely impractical synthetic tests. And it is not just that review, this is becoming a common practice at reviewing workstation class mobos. Almost as ridiculous as using different JS engine implementations to measure raw CPU power in mobile devices...
  • cen - Thursday, September 4, 2014 - link

    I completely agree. Anandtech used to have a server division but apparently this is gone now. I have noticed several times that server grade products get non-server related treatment, rendering the whole review completely pointless.
  • xyzzy1954 - Friday, September 5, 2014 - link

    I'll second that. I just bought a 'gamer' setup, but for video and audio rendering. I also do a lot of OLAP analytics. I'd really enjoy a review / comparison of 97 to 99 systems for these purposes. Threads matter, RAM > 32 GB matters. I don't get all this hardware from manufacturers for review I can't afford to do the comparisons. I feel confident that AnandTech would publish the comparisons if they had all the relevant tests 'off the shelf' (like they already do for game-based testing). Maybe we should crowd source some tests for them....
  • wintermute000 - Saturday, September 6, 2014 - link

    yeah I second that. SQL, virt, photoshop, blender, cubase etc. should be the kind of tests not games and office apps!!!!
  • Kevin G - Sunday, September 7, 2014 - link

    I personally don't mind the office and gaming benchmarks as they provide continuity between reviews of consumer class hardware. It is irritating is they're the only benchmarks to be had though. A workstation motherboard needs some workstation tests!
  • duttyfoot - Tuesday, September 9, 2014 - link

    i feel the same, if you review this type of system you should at least add cinebench along with all the other applications mentioned.
  • MikeMurphy - Wednesday, September 10, 2014 - link

    I really enjoyed the gaming benchmarks. I've always wondered how these boards would perform in those circumstances.
  • Samus - Thursday, September 4, 2014 - link

    To show this thing is a monster, except when gaming ;)

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