Pavillion Q8300 - p6267c: Fans periodically but regularly light up full normal speed on desktop under loads
I have a desktop computer of p6267c 5 years or more running Windows 7 Home Premium - 64-bit. He was a great computer with no problems other than a graphics card failed out of the box when it was delivered first, but that was immediately replaced under warranty.
A little less than a week ago I was using the computer when I thought I might have heard a strange noise light (no rain), and then I heard the fans go on full blast for a few minutes then slow down. Fans were left like that maybe a handful of times under very heavy load in any of the previous five years. This time, however, five minutes later and they are back on full blast (very strong and sensitive) once again, for a minute or more then quite new. This continued to occur regularly even though I was not any kind of important treatment, surfing and normal web documents changes.
I shut down the computer, turned off and taken to look at the case where I could see that some dust has put up on the vents. I removed the side cover, cleaned the vents and then little compressed air used for blowing significant dust that had built up inside as well, in various places. I got to where I couldn't see more dust comes out so I put the cover back and booted up.
Same fan periodical bursts has occurred. I was now concerned I might have a virus or malicious software that was causing the CPU to do something extreme every few minutes, even though I see nothing in the Task Manager, so I ran a full scan with Norton. Came back clean.
I looked more closely to monitor resources and another program, I had display the temperature of the CPU core and could see that some of the drivers were receiving up to perhaps 25 to 40% of the use and the core, the temperature rose from 60 to 85-90 degrees fahrenheit when fans full blast, then they would go offshore as CPU level dropped and temperature.
I tried to take off the side cover and have a regular fan box blow a little nearby to make sure there is plenty of air circulation around the chassis, but that made no difference. I was able to look at the fans, and all of them look like they work very well, even at full blast. The rear fan, the fan on the GPU and the fan on the sink sit directly on the CPU cooling.
By continuing to use the compueter and look more closely at exactly when fans come on full blast, I think it is especially when there are web video (classified ads or videos on the news sites, sports facilities, etc.). My understanding is that the CPU in general should do more work with the latter due to the cancellation of video compression and it is the CPU that, not the GPU. Happens a bit similar, but not as always if there are a lot of pictures on a site. Also occurs when the computer is first starting or stopping.
I am now at a loss that suddenly causing this or what to do? Five years and nothing, now half of websites that I will because of gusts full fans blowing. The computer seems to be OK otherwise, but I'm afraid that I don't want to damage from excess heat if the problem persists.
The only thing I can possibly think now is to take off the CPU cooling heatsink and fan, clean more thoroughly and reapply the thermal paste in the hope that it is a bad connection between the processor and heatsink cooling that makes them become hot and have the computer make the only possible choice, telling fans to go at full speed in an attempt to cool everything. I'm just worried that if it's not her, I am risking possibly destroy my computer just as I've never tried remove a CPU cooling sink and before reconnecting. So, I don't want to do something that could make matters worse if it is a solution very unlikely.
Thank you.
Doug
Well, I ended up buying a combination of heatsink / fan replacement. Not exactly the one originally supplied with the computer, but basically the same thing. The main difference being the new had a record of copper at the bottom where it comes in contact with the CPU, rather than just bare aluminum.
I removed the old radiator, remove the paste heat, applied new paste again and the new heatsink of heat and all seems OK now. Blower not more. Yet once, I don't know how the heat sink went 'wrong', but maybe something broke or the fan is unbalanced, I don't know.
Fortunately, it looks like it cost me ~ $35 between the new heatsink of heat and thermal paste to fix and maintain your computer.
Tags: HP Desktops
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