Would need the complete model number and spec's of the laptop as well as what operating system to give you the best advise. Look on E Bay and Amazon to see what that model is selling for personally would not pay more that $150.00 max for a used laptop. Pentium is a older and out dated processor loo for one with the Intel i3 good. i5 very good or best i7 processor. I own 3 Toshiba Satellite laptops and all are very good and have had no problems with even the oldest one at 8 years old and it still works good. It also depends on which Pentium processor the laptop has.