Thank you for your comments. I have initiated memtest86 as recommended. I can't speak to the utility which Lenovo provides. Its linked to their installed support program (Lenovo Service Bridge) which provides avenues to update software, etc. and which also linked me to their boot iso which examined the hard drive and memory.
no sticker, nos or anything on the display bezel or near the keyboard. If it was once there, it may have
been removed in the initial repair of this laptop (replacing the keyboard). The only sticker is on the
backside, with the model number: 'type 0301-DBUS/N LR-EWGHK 10/07 product id: 0301DBU'