compaq deskpro xl 575-wont go to system config

i got a old compaq deskpro xl 575/50 (bios date 04/07/97). i have just upgraded cpu from 50mhz to 300mhz (powerleap). system did not have ant problem untill i decided to upgrade memory too. after installing additional memory chips, i got "164 memory size error" & "f1 to continue" message. the problem is the flashing "cursor" at upper right hand corner did not appear so i cant go to system setup to configure system (memory size). is there a way to get the cursor going again??? or is there any other way to go to system setup??? please help....
thank you..........

 

Try holding down F1 or F8 before you hit the power switch. On some Compaqs, this signals a keyboard error, which takes you into CMOS setup. Also, some older Compaqs had a diagnostic partition along with the BIOS. Did you change any hard drive settings?

 

hi! thanks for the reply. i tried holding down f1 & it did give me a keyboard error message but still did not go to system setup. this pc used to have a two partition hard drive & was changed to a single partition one about 6 months ago. i really did not noticed if that cursor at the upper right corner stopped working after that was done. never really paid any attention. what else do you think i should do??? i am pretty new with this computer stuff, so any kind of feedback will be very, very helpfull. thank you....