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Allan, I know this has been a pain for you, and I really apologize for all the inconvenience.
Have you tried to chance the BIOS jumper on position 2 and 3 in order to access the BIOS in maintenance mode?
There are users reporting that once they disable "Legacy boot priority”, they couldn’t access the BIOS anymore.
We were able to replicate the problem on our demos and after 8 to 10 hours without the CMOS battery, we turned ON the system and we were able to access BIOS and reset default settings.
I would recommend you to keep the integrated graphics enabled on BIOS, since we have seen this behavior when a graphic card is being used. Also, make sure you have the latest drivers and firmware available.
In addition to that, as the BIOS cannot be downgraded, you can get in touch with our local Warranty Department so they can help you to replace the unit: http://www.intel.com/p/en_US/support/contactsupport
Hello Sylvia, thanks for your reply.
I have solved the problem and it was actually you who helped me solve it, even though in another thread. https://communities.intel.com/thread/44287
… Would you please test your system out of the chassis with minimum configuration like processor, motherboard, power supply and 1 memory stick on DIMM #1?
Please remove any additional accessory such as video card, wireless card, hard drive etc.
I unplugged everything unnecessary (I mean everything! Even all HDD) and found the culprit. I had almost forgotten about a Silicon Power 32GB SATA3 SSD disk in my system. The moment that disk was unplugged everything came back to normal. I HAVE NO IDEA WHY. It must be a compatibility issue. The disk is perfectly ok, I tested it in several systems and everything was fine, but the moment I plug it in my PC – I have no F2, no BIOS. Even the bare comp with only this disk triggers the problem.
KL0336 had no problems with this disk only KL0446. I, for obvious reasons can’t test KL0346 bios, so I can’t refer on that. It would be good if Intel looked in to this probably compatibility matter because this is good board and this mater apart, I have absolutely no complains
Sylvia, thanks for your help and time.
Have a nice day.