compaq deskpro xl 575-wont go to system config

[Modelito]

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..........

 

[harperse]

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?

 

[Modelito]

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....