Is your mouse a optical mouse, if so look at the botom of it, hit the Delete key as soon as you see the Red LED flash, you can also atempt to hit the key the moment you see either a cap loc or Num lock LED on your key board if you have that.
I have a laser mouse (which does have an LED), and my keyboard also has LED indicators. I have already tried hitting the delete key very rapidly and holding it down. I'll try it again with the LEDs in mind when I get home.
Other than not being able to get into the BIOS, are you able to boot into Windows and operate normally? Or does the system just hang during POST?
Actually, after POST, my system boots into GRUB as my primary OS is Linux and I dual boot with Windows. When AHCI is enabled, it completes POST, GRUB stage 1 loads, and then I get GRUB error 17 during stage 1.5 and I'm therefore unable to boot into either OS. I have built the ahci module into the initrd image, so there should not be any problem on the OS side. I have been considering this a separate issue -- first I need to get the BIOS working, then I can work on the bootloader. I may need to install GRUB2.
EDIT: GRUB should be able to handle AHCI with no problem. The most likely cause of the error 17 is just that the order of the hard drives changes when AHCI is enabled. That is an easy fix. Still, that is a separate issue. I need to be able to get into the BIOS without resetting the CMOS every time.
Another extra bit of information: when AHCI is enabled, the BIOS boot screen appears for a much shorter time. I also see an additional screen (after the main screen) that displays for only a split second and appears to say something about an "AHCI BIOS." But it is too quick for me to read it.
EDIT 2: I just tried again and I definitely cannot get into the BIOS no matter what I do. I can see the numlock led flash a couple times during POST, which makes me think the keyboard is working. But it just doesn't. I also found that I can't get into the boot order menu either (by pressing escape). So it seems like the keyboard just isn't doing anything at all. Unfortunately I do not have a PS/2 keyboard to try. But why would enabling AHCI change the keyboard functionality?
Thanks for your responses!
<message edited by noahsark1126 on Monday, April 02, 2012 3:41 PM>
EVGA x58 E758
i7 920 D0 "Lapped" 3381 MHz 1.175 Vcore
Mushkin Redlines 6GB 6-7-6-18 805 MHz 1.60 Vdimm
2x EVGA GTX 275
3x Seagate 7200.12 1TB
1x WD Black 1TB
1x Seagate 7200.11 500GB
PC P&C 910W
Arch Linux / Win7 dual boot