I confirm the Intel(R) Desktop Board DP67BG provides support for PCI Express* Revision 2.0; see page 10 of the Technical Product Specification:
Hence, I'd recommend the following:
1. Ensure your 2.1 video card is backwards compatible.
2. "The minimum recommended power supply is 460 W." (qtd. on page 55 of the same Technical Product Specification); hence, if your power supply meets this, I'd suggest the following:
2.1. Restart the system into BIOS by pressing <F2> during the boot process.
2.2. Once in the BIOS setup utility, press <F9> to restore BIOS default settings.
2.3. Reset any customized BIOS settings
2.4. Clear all DMI event logs by setting the option to "Enable", which is located in the Advanced/Event Log Configuration section of the BIOS Setup utility.
2.5. Just to be 100% sure, make sure you disable any unused ports in BIOS; for instance, you can disable "Boot to USB".
2.6. Press <F10> to save the new settings and reboot the system. Test.
Thanks for your answer.
My power supply is an Enermax Galaxy rated at 850W, so. even if I did not make any modification to the bios, I followed your suggestions, but the reported PCI-e speed did not change. For instance, after resetting the bios to default values, I disabled the boot from USB, from removable devices and from Network.
The video card is backward compatible with the gen 2 standard.
What's strange is that GPUz, ver. 0.5.3 reports the card as a PCI-e 2.0 card running at 16x and at PCI-e 2.0 speed.
In my opinio thee are the possibilities:
- The bios reports incorrectly the speed of the card
- GPU-Z does not perform a PCI-e speed test, it just reports the spec value
- The windows 7 driver during the initialization of the card is able to set the bus at the right speed.
Which one of the above applies?
If you followed my previous suggestions, yet the card speed situation continues, at this point, I'd recommend referring to both, the developer of CPUZ and that of the Operating System. Yould alternatively check with the card manufacturer to see if they have a firmware update for it that you can try.