No signal to monitor after reseating RAM

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A couple weeks ago, i was cleaning my desktop computer, and for curiosity, i took out one of my 3 ram chips and put it back in. After that, when i tried to boot my computer it made ticking sounds from the motherboard, and the cd drive kept making jerky moves and sounds and there was no signal to monitor. I turned it off, turned it back on, it worked like normal. I turned it off again and turned it on, it worked. The computer works fine when it works, and when i reboot it right after i turn it off, it works fine as well, but when i turn it off overnight, the next morning it wont boot and make the same ticking noise with no signal to monitor. I have to keep turning on and off the computer until i get lucky and it will boot.
I tried:
-clearing CMOS with jumpers
-reseating all my ram, tried booting without any ram
-took out the power cord, held power button, reconnected
None of these worked

Please help!

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Oh and when it does turn on, it makes a high pitch sound then beeps, but no beep when it doesnt. Just the high pitch sound, then ticking
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Hello,

Looks like you might have disturbed a motherboard circuit during the cleaning operation or when removing the ram stick.

How did you proceed to clean ?

Can you describe the beep ? It is just one long beep, short beeps, etc.

Regards
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You have a Canadian accent !?
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Its just one short beep that computers do before they boot. It takes like 20 tries rebooting the system in the morning. What should i do? Right now i just put the computer on sleep
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I cleaned it with a vaccuum tube
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If i disturbed the motherboard, it must be something associated with the booting process? Since everything else is working fine. How come it boots well right after the computer was turned off?
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The short beep you have heard is definately linked to your motherboard. It can also mean that you are facing a problem with your system memory (BIOS AWARD); but most likely the motherboard or both.

A computer's belly must never be cleaned with a vacuum cleaner but with a can of compressed air which you can buy at Staples or similar stores. It's extremely risky to use a vacuum.

I'm afraid that nobody in any forum can help you repair, only a hands-on qualified technician can.

Sorry
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Why does it tick? I heard it's some code
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I never heard of ticks as a code otherwise it would have been published in the Kioskea How-to section and certainly that someone over the years would have mentioned it on Kioskea.

The tick may come from the hard disk needle.

Here is a list of beep errors:

https://ccm.net/faq/344-how-to-recognize-computer-beeps

Good luck

P.S. Believe me, the vacuuming is the source cause, the vacuum may have displaced a small part, moreso if you touched or hit something.