Intel_DH55TC
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The system freezes when gnome is launched with the kernel included in 9.10 and 10.04 alpha 2.<<BR>> |
Karmic can be installed, but some quirks are required.<<BR>> |
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| One fix is to use the kernel parameter ACPI=off or ACPI=ht.<<BR>> To do this press F6 when the live media presents the boot menu, then choose ACPI=off from the menu that comes up, or press ESC and add the option manually.<<BR>> This will allow installing the system using a live media.<<BR>> Once the system is installed, the main problem with having ACPI disabled is that only 1 of the physiscal/logical cores will be used, and speedstep will not work.<<BR>> A good fix is to install a recent kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/ <<BR>> Steps to do this: 1. Open http://kernel.ubuntu.com/~kernel-ppa/mainline/ 2. select v2.6.33-rc5/ (latest at present, you might try a more recent one) 3. download linux-image-2.6.33-020633rc5-generic_2.6.33-020633rc5_amd64.deb (or one matching the chosen version) 4. sudo dpkg -i linux-image-2.6.33-020633rc5-generic_2.6.33-020633rc5_amd64.deb 5. reboot |
Lucid is not affected by this problem, and installs fine.<<BR>> Overall an excellent board for Linux, all hardware is detected and work out of the box.<<BR>> Highly suggested as a fast, stable and all-round system with support from a good brand.<<BR>> Definitely not a board for over-clockers due to lack of cpu or memory voltage override option. It is still possible to override bus frequency though, and with BIOS version 31 it is also possible to change memory timings.<<BR>> Apparently a memory voltage override option might be added in a future revision of the board. |
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| Direct rendering also works OK. Tested with warzone2100.<<BR>> Kernel mode setting: to be tested. |
The screen can occasionally freeze: see bug #560433, there are 2 possible solutions:<<BR>> 1. disable compiz visual effects<<BR>> 2. upgrade to 2.6.34 from http://kernel.ubuntu.com/~kernel-ppa/mainline/ <<BR>> Direct rendering works OK: tested with Warzone 2100 and Quake 3.<<BR>> Quake 3 has very playable frame-rates at 1920x1080 with maximum settings. Doom 3 and Quake Wars Enemy Territory crash during start-up with the Lucid stock kernel. With the 2.6.34 kernel QWET makes it as far as the menu, but crashes when game starts. Doom 3 makes it as far as asking for the key, but I don't have a valid one =)<<BR>> Dual screen works fine, tested with DVI and VGA. |
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| I only tested the rear analogue sound output (the green jack), and works fine.<<BR>> Left to be tested are: the front panel analogue header, he SPDIF header, and the HDMI sound output. |
The rear analogue sound output (the green jack) works fine.<<BR>> Left to be tested are: the front panel analogue header, the SPDIF header, and the HDMI sound output. |
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| There are reports that when running 2.6.33 the latest version of the driver from Intel has to be used for networking to work. | |
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| With the kernel mentioned above on my CPU (i5 660) Speedstep scales the speed in 9 steps from 1.2 to 3.33 GHz.<<BR>> I didn't try any of the suspend/resume features yet. === STABILITY === I experienced some major stability problems consisting in errors by memtest86 and inability to successfully complete the boot process, which seem to have gone away on 2 occasions after a hard power-off.<<BR>> I fiddled with various BIOS settings during that time, so I suspect some BIOS settings take effect only after a hard power-off. I will keep investigating.<<BR>> |
With an i5 660 Speedstep the speed is scaled in 9 steps from 1.2 to 3.33 GHz.<<BR>> Using module w83627ehf it is possible to monitor the CPU temperature, but not the fans. For the voltages to be monitored properly a suitable sensors3.conf seems to be needed but none can be found at present. suspend/resume works fine. |
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| Turbo boost: works<<BR>> | Turbo boost: works (see below)<<BR>> |
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| VT-d: not tested |
VT-d: not tested. Software support for this new extension seems to be non-existent at present. |
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| The BIOS doesn't allow setting the modules frequency or timings, so be sure to buy one that is tested by intel.<<BR>> My OCZ OCZ3P1333LV4GK is branded 1333 but runs at 1066.<<BR>> This is due to the fact that the board reads the modules SPD data in order to figure out its capabilities, and some memory brands, even famous ones, set the wrong data in the SPD.<<BR>> A future BIOS update might enable memory frequency override. |
Memory can only be set to 1.5v so running one of those heat-spreader fitted modules publicized as having good timing like 7-7-7 at 1.65v is highly unadvisable. These memories will likely produce error at 1.5v even when lowering their frequency/timings.<<BR>> Modules reported as compatible in Intel website will likely produce best results.<<BR>> Kingston KVR1333d3n9k2/4g is reported to work very well with this board. |
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| It seems to work fine, even if you will not find out by looking at /proc/cpuinfo !<<BR>> To check if it really is working, you can try this program: http://code.google.com/p/i7z/ <<BR>> You will have to change 1 line to disable the processor check (it is meant for i7 and will not work on the newer i3 and i5).<<BR>> My board revision is 204 and BIOS version is 0028 ---- /!\ '''Edit conflict - other version:''' ---- ---- CategoryHardware ---- /!\ '''Edit conflict - your version:''' ---- ---- CategoryHardware ---- /!\ '''End of edit conflict''' ---- |
It seems to work fine, even if you will not find out by looking at /proc/cpuinfo or any of the cpufreq entries in /sys !<<BR>> To check if it really is working, you can try this utility: http://code.google.com/p/i7z/ <<BR>> |
Intel DH55TC motherboard
Karmic can be installed, but some quirks are required.
See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/507770
Lucid is not affected by this problem, and installs fine.
Overall an excellent board for Linux, all hardware is detected and work out of the box.
Highly suggested as a fast, stable and all-round system with support from a good brand.
Definitely not a board for over-clockers due to lack of cpu or memory voltage override option. It is still possible to override bus frequency though, and with BIOS version 31 it is also possible to change memory timings.
Apparently a memory voltage override option might be added in a future revision of the board.
GRAPHICS
2D and Compiz effects work well. Tested with 1920x1080 display connected through DVI.
The screen can occasionally freeze: see bug #560433, there are 2 possible solutions:
1. disable compiz visual effects
2. upgrade to 2.6.34 from http://kernel.ubuntu.com/~kernel-ppa/mainline/
Direct rendering works OK: tested with Warzone 2100 and Quake 3.
Quake 3 has very playable frame-rates at 1920x1080 with maximum settings. Doom 3 and Quake Wars Enemy Territory crash during start-up with the Lucid stock kernel. With the 2.6.34 kernel QWET makes it as far as the menu, but crashes when game starts. Doom 3 makes it as far as asking for the key, but I don't have a valid one =)
Dual screen works fine, tested with DVI and VGA.
SOUND
The rear analogue sound output (the green jack) works fine.
Left to be tested are: the front panel analogue header, the SPDIF header, and the HDMI sound output.
NETWORK CARD
Just works.
There are reports that when running 2.6.33 the latest version of the driver from Intel has to be used for networking to work.
ACPI
With an i5 660 Speedstep the speed is scaled in 9 steps from 1.2 to 3.33 GHz.
Using module w83627ehf it is possible to monitor the CPU temperature, but not the fans. For the voltages to be monitored properly a suitable sensors3.conf seems to be needed but none can be found at present. suspend/resume works fine.
BIOS SETTINGS
Hyperthreading: works
Turbo boost: works (see below)
Virtualization: works, virtualbox detected VT-x
VT-d: not tested. Software support for this new extension seems to be non-existent at present.
RAM
Memory can only be set to 1.5v so running one of those heat-spreader fitted modules publicized as having good timing like 7-7-7 at 1.65v is highly unadvisable. These memories will likely produce error at 1.5v even when lowering their frequency/timings.
Modules reported as compatible in Intel website will likely produce best results.
Kingston KVR1333d3n9k2/4g is reported to work very well with this board.
TURBO BOOST
It seems to work fine, even if you will not find out by looking at /proc/cpuinfo or any of the cpufreq entries in /sys !
To check if it really is working, you can try this utility: http://code.google.com/p/i7z/
Intel_DH55TC (last edited 2010-08-08 13:28:30 by 78)