New system cycles on/off with constant beep

bslt

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May 6, 2014
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4,510
Hi. I am in the process of building a desktop PC. Installed the componants, powered up the PC. I get no screen , fans power up, get constant BIOS beep, than after 15-20 beeps the system shuts down, than restarts, and so on. This is a Gigabyte GA-B85-HD3, Intel 1150 CPU, 32 GB 1600mhz ram, AMI BIOS. 860 Watt power supply. I am inclined to think it is power or ram. Thanks for the help.
 

bslt

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May 6, 2014
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HI. I just found the sticky for Gigabyte MBs. When I go home I will try those suggestions. Like most, was certain I did the build correctly (doh!). I think I will disconnect the reset sw, HDD, DVD, and all of the ram to start (video is already off the MB) and see if I get the RAM beeps. Then if all is as expected add the ram, restart, etc. until I have the system up. Thanks for the sanity check and have a good day. I will let you know how it went tomorrow about this time. CU!
 

bslt

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May 6, 2014
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4,510
Hello again. I stripped the board last night (no HDD, RAM, video, or other peripherals) and powered it up with nothing but the CPU and CPU fan. Had the same reaction: beeps rapidly for about 10 seconds or so (15-20 beeps), than cycles off, than back on, beeping. I checked my connections, all the switches (Esp. reset sw) disconnected except for the on-off switch, which I swapped pins on with no effect on symptoms. It has a new Corsair 860 watt PSU. I checked CPU install too. I think I have a bad MB. I also tried wit just 1 stick of RAM, twice with two different sticks. Any thoughts? Thanks again.
 

bslt

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May 6, 2014
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swifty_morgan

No, this is not a thread from another place. Yes, the CPU is comp. W/ the BIOS. I bought this MB specificly because it works with the CPU. It could be the CPU, or MB, or perhaps the PSU, I agree. I know I did not touch the CPU connectors so feel that being bad less of a possibility. I used an anti static wrist band when handling the MB, but who knows what else had affected it before. The PSU is a premimum (Corsair) PSU and quite frankly, although I have not built any systems in the last ten years, I did do it regularly before that and bad MBs were most often the cause for new systems to fail (in my experience), but at this point how can I know?
 
how do you know if the board is bad? simple make sure all other parts are good and what is left is bad. Try a different CPU or your CPU in another motherboard to know if the CPU is the cause. then try a different PSU to be sure the PSU is not bad. Be sure to connect the CPU supplemental power connector. 10 yeas ago these were not required but now are.
 

bslt

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May 6, 2014
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4,510
Being that this is the only system I have, swapping parts may be challanging. I think reason will need to have a role here as I cannot go out and buy a twin system to fix this one. (I suppose I could and than return the extra parts, but is that fair to the sellers?) Is my reasoning wrong in my last reply? I am trying to arrive at a reasonable expectation for success. Now, if you were to let me have another set of parts... :)
 

bslt

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May 6, 2014
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4,510


I didn't make that clear, but yes I did that. Sorry.

Something that might help is this post: Newly-Built System not POSTing, cycles on/off . That post is nearly identicle with mine and he found that it was his MB.
 

bslt

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May 6, 2014
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Hello everyone!

I received my replacement MB last week. I did not have time to mess with it untill yesterday. I assembled the computer on the bench and all is well! It was the MB. I than installed it in the case and it still works so I feel pretty confident that we have a keeper here. Tonight I will burn it in. It seems a lot of the queries here are MB problems so I felt pretty confident that was the problem. How it got ded we will never know. I did use a wrist band, etc. Thanks for the help and have a good day! Brian