5 beeps during boot, brand new assembled PC

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V0ldek

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Dec 27, 2016
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I have assembled a new PC and after connecting everything and turning the power on the BIOS speaker beeps 5 times and then the PC turns off. According to the "beep" tables it means a problem with the CPU. Is there a way to check wether my CPU is malfunctioning or the motherboard is broken? What are the odds that my brand new components are flawed? Or maybe those components are incompatible with each other or I missed a cable connection? I tried running the PC with only the motherboard, CPU with the cooler and one piece of RAM and it doesn't change a thing. All fans are spinning. Specs below:

Motherboard: Gigabyte GA-H110M-S2V
CPU: Intel Core i5-6400 2.7 GHz BOX, stock cooler
GPU: Sapphire Radeon RX 470 Nitro+ 4GB GDDR5 256 BIT
RAM: GoodRam PLAY DDR4 8GB 2133MHz CL15 x2
PSU: SilentiumPC Vero L1 500W 80Plus
HDD: Seagate Barracuda/ Desktop HDD ST1000DM003 (3.5", 1TB, 64MB, SATA/600)
 
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OK, I feel so stupid now.
Turns out the 4-pin cable for CPU power was just connected the wrong side. After a friend rotated it, it worked. I just assumed that since it fit and it clicked when I inserted it, it was OK. Also since when it was completely disconnected there was no BIOS signal at all. I've made such a big fuss out of it, damn. Well, me being ashamed set aside, it is the best result I could get, now everything works and I didn't have to do any RMAs. Thanks for help, sorry for all this.

EDIT: Actually, it was also not the appropriate cable, since my PSU has 4+4 pin, there are 2 separate 4-pins and only one of them matched.
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V0ldek

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Dec 27, 2016
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No pins are bent in the socket and the CPU is installed correctly afaik, there's only one way you can insert it (the little triangle does match) and there's no bent pins as I said. The CPU is powered by a 4pin cable in this mobo and it is of course connected. When I disconnect it and therefore the CPU from power then during boot there is no beeps at all (probably since POST can't detect any CPU and doesn't know what it should do).
The 24pin I think goes without saying, as I said, all components appear to be connected to power, all fans spin, the GPU fancy lights glow, everything.
 
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Multipack

Multipack

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Sep 5, 2016
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Yeah sounds like its all properly done (you'd be amazed how many people find a way to install the cpu wrong despite it being seemingly foolproof lol) and you clearly have some idea of what you are doing which makes it even more of a mystery. And ok 4 pin sorry (Didnt check spec of board - same thing) can require more force than you may expect so perhaps double check its pushed in fully. I admit its a long shot but those beeps are related to CPU so its something in that area. It could be that the CPU or PSU 12v supply is faulty as there doesnt seem much amiss. Am surprised it doesnt beep without CPU power though.

The way you describe it, I'd start the RMA process with CPU and go from there as you seem to have most bases covered. Double check the pins in socket when you remove it maybe, as even one of the 1151 bent slightly can cause failure and they arent always easy to notice from a straight on angle.
 
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V0ldek

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Dec 27, 2016
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Yeah, when 4 pin is not connected the PC just starts up, fans spinning, and does nothing until I power it off again. No beeps. What are the odds that the CPU is faulty? And also could it be the motherboard itself that's faulty and e.g. the socket is malfunctioning? And, most dreadful of all, what are the odds that I screwed something up and damaged one of the components? There's no blatant physical damage, I double checked the CPU pins.
Also, as stupid as it is, could a wrongly installed CPU cooler cause such an issue?
 
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Multipack

Multipack

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Any of those things are possible in truth. Stupid question I know, but you have attached the cooler to the cpu_fan header right? If the fans spin even momentarily its unlikely to be that.

It could be the socket on the board, the CPU or the PSU at this stage. Even if RAM or GPU wasnt inserted fully you'd get different codes.

The CPU is very rarely faulty - probably the most durable of all components - but duds have been known. If you are 100% sure everything is connected properly and there are no signs of physical damage then you really will have to start the RMA process, and that could mean sending off more than one part to determine the problem. The most obvious thing would be CPU but you may find after Intel replace it - they will, they offer excellent customer service - that you then need to send board and/or PSU away too. The only physical damage likely is bent pins, which wont be covered by warranty, but if theres no sign of that its a case of ruling things out. If you have a voltmeter you could check PSU yourself.

I know its a nightmare and you were keen to get your new setup up n running but at this point you probably need to accept there is a problem and you're going to need to wait a little longer. Really sorry bud.
 
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V0ldek

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Dec 27, 2016
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Well, I'm going to try and check if the CPU works on a different motherboard first. As long as it's not me who's broken something I can live with it, a few days or weeks don't really make a difference. Thanks for your help.

Oh, just to be 100% sure - this setup should work, right? I'm not overlooking some incompatibility of components or anything like that and making a fuss of it, I hope.
 
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Multipack

Multipack

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Yeah if you can test parts in another PC then that's a v good idea.

The parts are 100% compatible yes. On thing I did notice is Gigabyte do a DDR3 and DDR4 version of that board but a) RAM shouldnt make a difference with the error you're getting and b) tehy wouldnt fit in the slots as they arent compatible so I figure you have the DDR4 revision.

Your PSU is tier 4 though so not the most reliable http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

Maybe someone else can help you further, but post here if there's anything else you think I may be able to help with. Good luck anyway.
 
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V0ldek

Commendable
Dec 27, 2016
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1,520
OK, I feel so stupid now.
Turns out the 4-pin cable for CPU power was just connected the wrong side. After a friend rotated it, it worked. I just assumed that since it fit and it clicked when I inserted it, it was OK. Also since when it was completely disconnected there was no BIOS signal at all. I've made such a big fuss out of it, damn. Well, me being ashamed set aside, it is the best result I could get, now everything works and I didn't have to do any RMAs. Thanks for help, sorry for all this.

EDIT: Actually, it was also not the appropriate cable, since my PSU has 4+4 pin, there are 2 separate 4-pins and only one of them matched.
 
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