DFI LanParty UT NF4 SLI-DR Expert - it can boot & run Windows BUT can't access BIOS

[vladv]

I've got this legendary socket 939 motherboard DFI LP UT SLI-DR Expert chipset nForce4 SLI almost new only one SATA port is somewhat messed up missing those plastic parts from both sides , bought this mobo really cheap ~ 55 $ from well known Romanian site okazii.ro , and I put it on my FX-60 dual core ( yeah ,THAT one! ) and some KINGSTON value memory and tried to boot my rig.Here is my problem now:this board is working those 4 red diagnostic LEDS start 4,3,2 next only one left so no "4 LEDs of death" syndrome for me and the onboard speaker beeps ONCE which I know is a good thing but I cannot enter BIOS to setup things there as I need Del key on my PS2 keyboard is NOT working as it should I press the key and the result is 0 nada nothing (and I tried with another USB keyboard , of course) , first I see the boot logo from DFI after that I see these error messages "CMOS checksum error - defaults loaded , press F1 to continue or Del to enter setup" and when I press F1 sometimes I see this message "Verifying Pool Data and Backup CMOS OK!" and other times I see "Sil3114 SATA RAID Press Ctrl-S or F4 to enter RAID utility".One more thing to add is that I can actually use boot menu selection using Esc key to select HDD,CD-ROM or some other option like floppy and memory stick boot and this board actually can boot using CD/DVD I already tried UBCD rescue CD and some Linux live distros ( right now I use Windows XP Pro SP3 to write this message here ) to see if it's not a problem with my FX-60 processor and I'm happy that it is working well is all good no problem here actually I've seen it's name and working frequency ~ 2616 Mhz at POST, please help me to solve this problem with my mobo.

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And I must add to my previous message that my actual BIOS is 04/06/2006-NF-CK804-6A61FD4EC-00 and the BIOS chip is PMC 0551 Pm49FL0004T-33JCE.

[vladv]

Anyone CAN help me,please? Thanks!