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Why does my computer make three long beeps

Last response: in Motherboards
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October 28, 2011 1:43:49 AM

G'day all,

I have just bought a brand new motherboard (GA-990FXA-D3 AMD).
I've inserted a new compatible ASUS 560 DCII 1gb.
I've inserted 2X4gb ddr3 Kingston 1333 which also compatible with this motherboard.
I've inserted a AMD Athlon x4 cores 640 which is also compatible with the motherboard.
I've inserted a 2 gb Seagate green sata and card reader with USB2.
I've also inserted the Samsung BlueRay disk combo.
Inserted Windows 7 Ultimate 64bit software and all drivers pack which came from my motherboard.

All this worked when I booted and worked without any errors whatsoever.

A couple days later I pushed the start button and I get three long beeps and nothing showing on the monitor,three long beeps go off in intervals of about 5 seconds.

What I did:
1. I unplugged all peripherals, cables, power cord etc according to Gigabyte manual Handbook except the CPU (only detached power to it.
2. I made sure there can be no short circuit by wearing short circuit wrist and worked on plastic.
3. I started the computer no 3 long beeps present.
4. I turned the computer off and always unplugged the power cord.
5. I plugged the power cord to the CPU and again it made the three long beeps.

(All these peripherals and GPU, HDD, keyboard an mouse, card reader, USB2's, monitor,optical drives, dvd drives and power cord was taken out and turned off and unplugged.
I did not take my CPU out but left the power unplugged).
6. Plugged the power to the ATX 12V motherboard and to the main.
7. Turned the computer on again. Again the three beeps were present.
8. I took out the memory cards and disconnected the CPU power.
9. Turned computer back on again no beeps were present.
10. I plugged CPU back in again, three long beeps were present!!!!!

The motherboard, DDR3 1333 2x4gb, Asus 560 DCII, card reader are brand new.

It seems there maybe something wrong with the CPU. I check Gigabyte and checked whether Memory, CPU, Graphics card, OS and are compatible with this new motherboard. Bear in mind that this computer was working for a little while.

Anybody with this sort of trouble, please don't hesitate to help as no answer is a stupid answer to me.

:( 

More about : computer make long beeps

a b V Motherboard
October 28, 2011 3:07:24 PM

I'd disconnect all but the cpu + power, memory, and video card + power and see if it still beeps. After you built your system, did you run memtest86 to check your ram? Also, make sure you vid card has the power attached to it. What make/model PSU do you have and how many watts is it rated for?

Anyhow, run memtest. If it fails with multiple sticks installed, remove all but one stick and rerun it for each stick of memory seperately as just one of the modules may be defective.
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a b V Motherboard
October 28, 2011 4:36:27 PM

herboren said:
Three Long Beeps Keyboard / Keyboard card error.

Found on: http://www.computerhope.com/beep.htm


Gigabyte uses AWARD bios, so it would be memory according to the link you posted.
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November 17, 2011 2:53:17 AM

G'day Hawkeye22,

Found the problem, it is a faulty AMD Athlon x4 cores 640. So I bought the AMD Phenom x 6 1100 black Edition. Fantastic and fast with great overclocking.

Thanks for your time and help, I greatly appreciated it.
Thanks again.
p555h.
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!