800 yuan, no memory, no hard disk. What kind of second-hand notebook can I buy in salted fish?

Second-hand notebooks can be purchased carefully, and this money can also be used to buy an i7 configuration. However, there are many swindlers who make money in salted fish, and second-hand notebooks are the hardest hit! The first thing to look at is the seller's credit. 800 meters can buy an i7, but who can guarantee the screen and motherboard? Because you can't do an interview machine without memory and hard disk, the risk is not small! Suggest adding hundreds to buy one with memory and hard disk! 1,230 is absolutely easy to use, but the notebook immediately eliminated 0.