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NAS – unstable C2750D4I

When configuring my NAS I noticed that the ASrock C2750D4I behaves rather sloppy. Uptime never reached more than 24 hours.
Online I can find other people who are experiencing the same issues with this board: http://forums.tweaktown.com/asrock/56730-c2750d4i-stability-problems-2.html

This is how I made it stable (been running 7 days now without reboots)

NIC drivers

A quick glance at the Intel website shows an update for the NIC:
Let’s install it:

cd ~
wget http://downloadmirror.intel.com/13663/eng/igb-5.1.2.tar.gz
tar xvf igb-5.1.2.tar.gz
cd ~/igb-5.1.2/src
sudo make install

Edit the modules file and add ‘igb’.

sudo nano /etc/modules

Let’s check if it loads.

sudo modprobe igb

Reboot the machine and verify if the new drivers are loaded.

sudo reboot
modinfo igb


filename:       /lib/modules/3.13.0-24-generic/kernel/drivers/net/igb/igb.ko
version:        5.1.2
license:        GPL
description:    Intel(R) Gigabit Ethernet Network Driver
author:         Intel Corporation, 

Last step cleanup the files.

sudo rm -rf ~/igb-5.1.2
sudo rm ~/igb-5.1.2.tar.gz

Disable Intel Speedstep

Disable your Intel Speedstep and C-Bit in the BIOS. The manual states that Intel Speedstep could ‘make your system unstable’. On this board, yes it does.

SATA cables + Boot disk to Intel controller

The manual recommended the use of the Intel RAID controller for OS disks. (Which I didn’t) So I swapped the SATA cable with a more expensive one (found some postings of people reporting e better stability using better SATA cables), and moved the boot disk to the Intel SATA controller.

These steps solved my instability with this board. Whilst on paper this board is the most awesome buy you could do (passive cooled, 12 SATA ports, quad core Atom, 20 Watt). In reality it’s as picky as a spoiled toddler. Definitely a not buy. At the price of ~€350 this is quite an expensive pain in the ass.

However, is there a comparable product?

3 Responses to “NAS – unstable C2750D4I”

  1. Ironman Says:

    wow you found a solution.
    Is it still running ?

    A possible alternative to this board would be the Supermicro X10SL7-F + whatever 1150 CPU you need and an insulated Nanoxia Deep Silence 6 for 14 HDDS.

    Else non ECC 6 Sata-Ports 1150 Mainboard with a cheap Marvell controller card.

    btw. did you consider the SilverStone DS380 ?
    I´m using it with the C2550 board.

  2. enira Says:

    Yeah it’s still running. Did some work on it previous week. Current uptime is: 7 days, 24 minutes, 9 seconds; booted 05/11/14 12:28 PM (UTC).
    Didn’t find a problem ever since. However I do suspect (or fear) for my RAID5. Next week I’ll be benchmarking to see if it throws balls of data corruption.

    The Supermicro X10SL7-F wasn’t really what I wanted. I wanted it to be a passive cooled solution. And I am quite a fanboy of the Atom…. Don’t know why, it’s a weak spot…. :P My first NAS was built around an Atom 330, which turned out to be a very reliable device (3 years of service).

    Seems that the SilverStone DS380 is quite a popular NAS builders case too, and a rather sexy looking one. With the front bays, I’d love it. Did look at it but at the price of 159 euro’s versus a Lian Li Q25 priced at 104 euro the choice was rather easy.

    How is the C2550 performing? I am satisfied with the performance of the octa-core. However I feared that the C2550 would be too low to pull 3 VMware machines and a Plex server all at once.

  3. Ironman Says:

    I’m now at 5 days uptime so far so good.
    The C2550 is enough for two 1080p (20 Mbps) streams with plex.
    I’m not running any VM’s at all so its fine.

    I also run snapraid togheter with greyhole on full encrypted disks.
    Thanks to AES-iN its pretty fast even with 512b:
    aes-xts 512b 383,0 MiB/s 359,0 MiB/s

    Snapraid syncs / scrubs with 270 MiB/s and saturating a Gigabit Link is also no problem.

    Why do you fear for your Raid 5 ? Even with the occasional crashes my Snapraid scrubs went trough w/o any error.

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