Z68A-GD55 can't get into BIOS anymore

Just built new Z68 computer gradually over 3 days. Then loaded applications and everything worked great for 2 days. Decided it was done and time to change boot priority in BIOS. Couldn’t get into BIOS. Got splash screen but no further.
Found forum message recommending CMOS reset. Tried button, jumper, remove battery methods. Still can’t get into BIOS. Get BIOS Prompt ("...press DELETE"), but nothing after that except flashing cursor top left of screen. Back to barebones; same result. Screen messages before BIOS prompt: 98, 99, A3. Will not boot MS DOS (Win98 version) from USB drive (would before). I’d appreciate any suggestions. Thx.
Key build steps:
• Ran Memtest barebones 48 hrs.
• Added SSD (ACHI) and Installed Windows 7 Pro. SSD was new.
• Added, formatted HDD
• Enabled multi-monitor in BIOS; added Radeon HD6870; 2 monitors on Radeon, none on internal; installed Radeon drivers.
• Enabled Virtu in BIOS, d-mode; Installed Virtu
Not overclocked.

After replacing the PSU with a Corsair TX650M (650w, 3.3v30A, 5v30A, 12V54A), the barebones config could access the BIOS. Installed everything except boot SSD; still OK.
Before letting the computer boot back into Win7, I connected two old 19" LCD monitors (Microtek C997SD). For setup and testing, I had been using a 24" widescreen. But Win7 had never seen anything but the Microteks, which I intend to use with this computer. Tried to enter BIOS to verify settings were still correct for SSD. Got splash screen -- regular BIOS background, but no Icons (Green Power, Utilities, Overclocking, etc.). Computer locks: PS/2 keyboard (incl. Ctrl-Alt-Del) and USB mouse, do nothing.
Connected widescreen, verified BIOS OK. Shut down and reconnected Microteks, attempted boot into Win7, and all was OK. I just can't use a Microtek to access BIOS.
I hope MSI recognizes how valuable the volunteers here are. Your advice solved the problem at least a couple of days earlier than I would have done on my own. Thank you.

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Solved!
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REO
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Attachments:
image.jpg ‏966 KB

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Regardless of what I do, I cannot get into the BIOS. I have tried clearing the CMOS using the procedures documented here on the forum - both removing the CMOS battery and by using the jumper, both with the power off.
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Solved!
Go to Solution.

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Z68A-GD55 can't get into BIOS anymore

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