Ram is dirty

Today is Monday I woke up 06:00 am. Go to bathroom to wash my face and brush my teeth. 06:20 am. I started jogging. I ran through to the market and ran into the park. There are a lot of people in the park and they are workout too. I am jogging around the park I felt will be fresh.06:40 am. I am jogging to the market to buy some food and back to house.07:20 am. I ate my breakfast and go to work. 07:50 am. I arrive to my workplace almost late. I walked to my office there is a computer on my table and note to me.  In the note there is message, (Please check my computer for me it not working). I am plug in a computer and turn on. There are light on the case computer, but there is no signal on the screen. I open the case of computer. I am taking multimeter to check voltage of power supply. Power supply there are many wire color red, Orange,Purple, Yellow,  Green, Blue, Brown and Black. 

Red wire voltage 5 V.

Orange wire voltage 3.3 V.

Purple wire voltage 5 V.

Yellow wire voltage 12 V.

Blue wire voltage -12 V.+

Brown wire voltage 3.3 V

Black wire voltage Ground

I check every wire of power supply the power supply is normally no problem. I thought the ram of computer is dirty. I decide pull ram out of mainboard. I take the eraser rub on the copper of ram until was clean. I put ram into the mainboard and also plug in power supply into the mainboard. I turn on the computer. There are pictures of logo and sound appears. This problem came from ram was dirty. When I was finished repair computer I calls to the office for bring your computer back. 10:00 am. I'm gone to the computer control room. I open the door walked into the room open rack server to check switch. There are light on a switch that means router is normally. On the switch there is one access point. I take my laptop connect internet and ping to my server. I enter to program Dos take command line. Type ping 192.168.1.1 -t. There are messages from program Dos Reply from 192.168.1.1: bytes =32 time<1ms TTL=64 That means the network no problem can connect normally. After I have to  checked network finished. 12:00 am. Time to lunch my friend walked to me at my office and invites me to eat lunch. He needs food feast for me because I was helping him work in hotel. I go to new restaurant I order noodle and cool coffee. I felt this noodle is yummy I ate a lot. 12:30 pm. We back to the hotel I walked into my office with my friend and open TV program. I watched Muay Thai on TV until 13:00 pm. time to work. Today in the afternoon we have been meeting. We have been meeting until 17:00 pm. I almost forget to tell in the hotel there are four computer control rooms. Oh! Time to go home, bye everyone, see you tomorrow.