How to tell type of motherboard when computer will not start or enter BIOS?

dtbecker

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Nov 8, 2012
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Hello,

My desktop gaming PC will start up and beep three or four times after startup. Windows 7 does not start and neither does the BIOS. My monitor just shows a black screen.

Originally, when the computer booted up, I had the intentions of upgrading to Windows 10 with a fresh install. I plug in my flash drive with the ISO file, hold down F2 when computer starts, and at that exact moment the computer starts beeping. I had to hold down F2 because the computer starts too quickly to Windows so I am unable to enter the BIOS quick enough.

My method of fixing this is to remove the CMOS battery for 10-15 minutes and put it back, which will reset the settings. Should this not work I will troubleshoot further by removing my three 2GB RAM sticks going through each one to determine if any of them are faulty.

I will also completely clean my PC by removing each part individually since dust has really accumulated over 5 years. The CPU fan is LITERALLY caked in dust. My CPU is also overheating, with a idle temperature of 80c and a maximum temperature of 99c with an average temperature of 90c. This computer is NOT overclocked and everything is stock. This might also be a cause for concern since my beeping might be related to this. Anyhow, I will remove CPU fan, remove thermal paste, and replace with new Arctic Silver 5 using the vertical method.

Is this a good plan? Anybody have any suggestions? And ultimately, how can I tell what motherboard I have if my PC won't start?
 

dtbecker

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Nov 8, 2012
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Thanks, I will report back to this thread on how everything goes. If I find my motherboard model, I can understand what each "beep" code means.

I don't think I'm going to vacuum it, but instead use compressed canned air. If I do use a vacuum it would have to be very low powered.
 
You hopefully understand the risks of using compressed air; you'll find no posts about damaged motherboards using a vacuum cleaner in this NG, but several from members who ended up with faulty motherboards after cleaning them with compressed air. Personally I use a central vacuum cleaner with reduced suction for the motherboard and full suction for the fans.
 

dtbecker

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Nov 8, 2012
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Hmmm, thats interesting, I always honestly thought compressed canned air was the safest route for cleaning all computer parts.

Anyhow, I have a central vacuum system with a reduced suction add-on that I can use specifically for the motherboard. All other parts will use canned air, and I will hold the fans down for the GPU on my GTX 260 to make sure they don't spin.
 

dtbecker

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Nov 8, 2012
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What is your suggestion for cleaning the RAM sticks and RAM slots? Of course, I could go to the extreme and dunk my motherboard in rubbing alcohol.

I have also heard of the method of using an eraser to clean the memory stick. And then using compressed air to blow away any residue.

I am just going to use my low powered vacuum to get any dust out of the RAM slot. In both of these cases I would fully remove my three 2GB sticks.
 
Unless you live in a very dirty place, there's no need to remove everything. You shouldn't blow compressed air in slots as that can damage pins. You could use an eraser to clean contacts on memory modules, but why would you need to blow them once they have been vacuumed? A bit of dust doesn't harm as much as broken components. If you really want to remove the memory modules, vacuum them before to ensure no dust will fall into the slots.