Trouble getting my newly built PC to start

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Ryan Earnshaw

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Jun 22, 2013
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Long time reader, first time poster. Happy to be finally posting here :)

Okay, straight to business, here are the parts that I think I'm having trouble with:

- Corsair Builder Series CXM 750W Modular 80 PLUS Bronze PSU
- Intel 8th Gen Core i5-8400 Processor
- GIGABYTE B360M DS3H (LGA1151/Intel/Micro ATX) Motherboard
- Ballistix Sport LT 8GB Single DDR4 2666 MT/s RAM
- GTX 1050 ti


So I put all of this together and nothing happened at all (no sound, no movement)...
1, So firstly I moved the 1 stick of ram to a new slot, nothing happened
2, So I took it all apart starting by removing the 1 stick of RAM, still nothing
3, Then the GPU, still nothing
4, Then I 'breadboarded' the motherboard, still nothing
5. I removed the Motherboard battery and put it back in after 15-30 seconds, still nothing
6, I tried putting a wire from two pins in the 24 pin cord from the power supply and the fan started up! I thought brilliant, getting somewhere!
7, Sat here on the floor with everything seperated. I'm tempted to remove the CPU but I'm not sure if that's such a good idea...

Does anyone have any more thoughts on what I could try? I'm lead to believe the motherboard is dead at this point.

Thanks!
-Ryan
 
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If you just installed all new equipment, that calls for a new installation of Windows unless you like working through issues. But that's your call and not the issue you asked about. :)

To try address your boot device issue, I suspect your old installation of Windows 7 was installed using legacy BIOS boot mode, whereas new systems should use the UEFI boot mode. If your system is set to only UEFI boot mode, rather than BIOS, or a hybrid mode to allow for both, it may simply not show your older Windows 7 media as bootable given the current settings. It could also be the opposite, if your old install was UEFI and your current settings are BIOS only. My recommendation is look for the specification for the type of boot your system will...
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Ryan Earnshaw

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Jun 22, 2013
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The GPU is a GTX 1050 ti and the Corsair PSU is a Corsair Builder Series CXM 750W Modular 80 PLUS Bronze Certified ATX/EPS PSU. I can't test the PSU seperately but I don't believe that to be the issue if I'm honest
 
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lemonadedownpour

Jul 21, 2018
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The problem could be lots of things, and without a second build to test the parts out on you'll have trouble figuring out what's up.

First and foremost check all of the connections on your motherboard and make sure that you oriented your CPU correctly, basic stuff like that.

If that's not a fix, it's possible that you were sent a defective item or you may have fried one of your parts on accident if you weren't grounded. If you don't have an existing PC to test individual parts on, try to find a friend who has one. Swap out your parts into their build one by one to see what part makes it not start.

Also I'd double check compatibility of all of your parts.

Also check the power outlet that your computer is plugged in to, it could be as simple as that outlet being broken.

I hope this helps!
 
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Ryan Earnshaw

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Jun 22, 2013
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Thanks for all of your advice guys, but still nothing as of right now :/

To answer your questions lemonadedownpour:

Checked and checked again all of the motherboard connections maybe 5 or 6 times. I've double checked the CPU was placed in correctly. The compatibility is something I was worried about. Not exactly sure how to check that. I believe the CPU and motherboard are compatible but I could be wrong. I double checked the power outlet and it's functional. I even tried it in another just to be safe.

To answer your questions profoundnoah:

I've just placed an order for a return motherboard. Fortunately I bought the board through Amazon which are pretty good about stuff like this. They told me to send my old one in and just place an order for a new one. It should arrive tomorrow to which I'll give you all an update :)
 
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profoundnoah

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May 12, 2015
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That's great to hear, and wow that shipping time is ridiculous. If it's no cost to you then good on them! The 8400 is DEFINITELY compatible with that board. You can also use pcpartpicker which has a built-in compatibility filter, though it's not always 100% accurate, it really has the chipset stuff nailed down.
 
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Ryan Earnshaw

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Jun 22, 2013
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In reply to bigpinkdragon286:

Thanks for the article, I did read through that breifly taking a few notes but I will look at that in more detail now. Thanks for the info on the CPU and motherboard, I was worried they weren't compatible!
 
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Ryan Earnshaw

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Jun 22, 2013
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In reply to profoundnoah:

Yeah I thought so too haha. Thanks! That was a website I was tempted to try but I wasn't sure how well it worked with finding if things were compatible - I thought it was mainly for calculating total cost so that's great to know for the future. I'll give you all on update once I get the new board! :)
 
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Ryan Earnshaw

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Jun 22, 2013
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Hey guys, got an update for you. So my new motherboard arrived about 10 minutes ago. Rigged it up to my power supply and put the CPU and RAM in, bridged the two power pins on the motherboard with the head of a screwdriver and.......nothing happened :(

So my next line of thinking is that it must be the PSU...

I've ordered a replacement which should, again, be coming tomorrow so I can test again. I was so certain it wasn't the power supply but hey ho.

Just thought I would add too; I've done the paperclip trick thing and the PSU fan starts and stays running sooooo. Anyway I'm going to try the new PSU tomorrow!
 
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bigpinkdragon286

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Oct 3, 2012
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Don't run an SMPS (Switched Mode Power Supply) in an unloaded state unless you know the supply is safe to run that way. Power supplies that adhere to things like UL listing and proper ATX standards should be safe to run unloaded, but doing so is pointless as you can't determine anything from a power supply in this state. A spinning fan doesn't indicate that the voltages and timings are correct, only that the fan spins with the voltage it's being supplied.

If you want to test power supplies without attaching them to a computer, just buy a cheap power supply tester, and READ THE MANUAL to make sure you don't use multiple connection that you aren't supposed to at the same time unless you like to damage the power supply tester.

low cost power supply tester
 
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Ryan Earnshaw

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Jun 22, 2013
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I had already tried that a couple of times...

Good news though!! A new PSU arrived and it now works!!

BUT

I have another problem, this time on the software side of things...

I'm trying to boot from my SSD that I used in my old PC, it has windows 7 already installed and whatnot but I can't seem to do it from the BIOS so I tried restarting the computer and pressing F12, a boot menu comes up but my SSD isn't listed. It just says "Please select boot device: Enter Setup"

I checked the BIOS again and I can see that it detects my SSD but it won't boot from it for some reason. Any ideas?

 
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bigpinkdragon286

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Oct 3, 2012
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If you just installed all new equipment, that calls for a new installation of Windows unless you like working through issues. But that's your call and not the issue you asked about. :)

To try address your boot device issue, I suspect your old installation of Windows 7 was installed using legacy BIOS boot mode, whereas new systems should use the UEFI boot mode. If your system is set to only UEFI boot mode, rather than BIOS, or a hybrid mode to allow for both, it may simply not show your older Windows 7 media as bootable given the current settings. It could also be the opposite, if your old install was UEFI and your current settings are BIOS only. My recommendation is look for the specification for the type of boot your system will allow, and change it.
 
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