Hello, i want to thank in advance for all help and advice i could receive. I'm still a novice in the matter of computers. I'll try my best to elaborate the most understandable possible.
Two yesterday went to the closest technical support place. I went to change a broken CD drive for a DVD drive and perform a cleaning of dust. Also to find a fix to the blueish screen that appears when i start pc that checks for files consistensy on C. I have only one hard disk, divided in C and D. This screen appeared more or less 6 days ago, after i updated Avast antivirus to version 8. I had to uninstal the antivirus and replace with Panda Cloud.
The prelude of this is that the CPU was making a unusual noise, i thought it was the fan of the power supply. The sound started sometimes and stopped. By that time it was very dusty so it was noisy too, but this sound was not like any i heard before. The sound lasted for some 3 days, then stopped few days before i sent it to technical support.
The moment i heard this sound i decided to check with Everest home edition the temperatures which i usually do once i notice the sound is louder than normal. Normally i send it to be cleaned when value reaches 60 °c, which is the Aux in Everest. After a cleaning of dust and aplication of thermal paste, the temperatures were normally more or less like this:
I translate, my main language is not english.
Motherboard: 28-30 °C
Processor: 35-45 °C posibly less
Aux: 40-45 °C possibly less
Hard Drive: 35 c possibly less
And the fan of the processor rotated at no more than 2800 rpm
This has always been the normal situation. However, after the day i updated Avast to version 8 and had problems with Word Office which lead me to uninstall the antivirus, i started having software problems like the screen i mentioned before and haven't found solution for. My Hard Drives are ok, i made many tests, but the technician ran a program called ComboFix to see if it deleted something that was causing the problem. Didn't delete anything of significance and the screen kept starting, so he considered this a software damage that could be solved only by a disk reformatting and that it doesn't represent a substancial risk. I'm not convinced about the reformatting.
Now, before i visited the technician and after the Antivirus issue happened, i saw that the heat was not acceptable, at least for me. When i watched videos from a pair of sites i know are safe, the heat increased. The heat of the processor was very unstable, going from 35 °C to 40 next instant, and as i kept watching the video the heat increased to 55 °C. Never reached 60 °C. The Aux, however, reached 60 °C rapidly. I didn't dare to play any game. However the heat was stable once i started watching the videos or browsing. Processor was 50, sometimes 55, and went down once i stopped watching and minimized the browser. Aux was under control too, going from 57 °C to 62 as i remember.
The drama started after i took my pc for a cleaning. The technician used compressed air and took off the dusk from the processor fan and from inside power supply, never oppened to check it thought. I asked a friend and said the air only cleaned 50% of power supply and needed to open it and clean with brush or vacuum. The technician didn't put thermal paste. Then proceeded to turn on the PC, the blue screen appeared again. Once the desktop appeared the system froze. Nothing responded. He turned it off by force i think and took off one of my two RAM memories. I have one of 250Mb and second of 1Gb. After turning on and off he said the one of 1Gb was damaged and didn't work at 100% but still left it in. I accept i have half fault for this situation, i was not careful enough to see what he was doing with his hands inside the CPU.
Now at home i check the temperatures of a suposedly cleaner CPU and i can only browse internet without executing anything else to keep this temperatures:
Motherboard: 47 °C
Processor: 46 °C
Aux: 56-58 °C
Hard drive: 43 °C
This is when i'm writing this, doing not much or when i just watch screen. Once is start doing something like loading new site, or oppening some little program, the heat goes up gradually. The problem starts when i only watch videos. Processor goes up in temperature slowly, up to 60 °C and Aux goes rapidly up to 70 °C. If i don't stop i fear it might reach temperature where computer turns it off itself, i dare not reach that level, so i stop watching. I remember that with lower temperatures, the fan rotated at the max i have seen, 3750 rpm. Now it only rotates at 3245 or less. The sound is same as ever. Speedfan program gives me same readings.
That day the technician turned off some services(as he said) by entering in msconfig and pressing some Fx key on keyboard. Now my antivirus (Panda) and some other programs that started instantly now need to be started by myself, still leaving some services off. Also Left my system to start in mode that i have to select myself to start with Windows XP or safe mode and a third option it says to don't choose.
-My computer is 7 years old. The technician remarked the quality of the pieces.
-Two years ago i moved to a hotter place, and we are in a hot season.
-I never experienced this in the previous years, despite keep my CPU in a dark place, separated from the floor, but narrow and only uncovered in front and back. I use a stabilizer.
Forgive me for the length of my post, i considered necessary to give as much information as possible. I'm aware that this problem could be caused by many things like hardware, software, electricity, power supply.
Please elighten me.
Edited by hamluis, 10 March 2013 - 06:57 PM.
Moved from XP to Internal Hardware - Hamluis.