I had the same problem dealing with a DTK PRM-23 I and after some attempts I realized the jumper that selects NORMAL or CLEAR CMOS , had fallen down, as if you were clearing the CMOS every time you boot. When I put bthe jumper in place every thing was OK. Hope it helps Roberto Safora ----- Original Message ----- From: Richard Hallett <[log in to unmask]> To: <[log in to unmask]> Sent: Thursday, August 10, 2000 11:04 PM Subject: [PCBUILD] "bios check sum error" > New Soyo SY-K7VIA board with 128mb of PC100 and Athlon 600. Guide says > this should run. Hard disk floppy and cd are connected to the board and of > course the video card. > > When it is asked to boot it does not but gives this message then goes to the > floppy and asks for a system disk. > > What dos "bios check sum error" mean. > > Thankyou. > > Rick > > Curious about the people moderating your > messages? Visit our staff web site: > http://nospin.com/pc/staff.html > PCBUILD maintains hundreds of useful files for download visit our download web page at: http://nospin.com/pc/files.html