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Tier 3 won't boot while in case.
08-24-2011, 09:57 AM, (This post was last modified: 08-24-2011, 10:44 AM by myst132.)
#1
Tier 3 won't boot while in case.


I'm building the tier 3 gaming pc. When I turn it on while the motherboard is out of the case, it boots up fine. When I put the motherboard in the case and screw it in, it won't boot, however it will turn on. The weird thing is, if I shift the motherboard slightly towards the front of the case, it will boot.

The case: Antec Three Hundred Illusion R
The Motherboard: ASRock H61M/U3S3 LGA 1155 Intel H61 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard

There are some metal things protruding from the case that seem to be shorting the motherboard on the underside of the motherboard. They're the things that part of the video card slide into. I tried putting pieces of rubber there temporarily to stop any connection between the mobo and the case, but it didn't work.
Any ideas on how to fix this?
Scratch that. Turns out one of the metal (brass?) pieces that hold the motherboard up from the case and that you fasten it to was causing the short. Removed it and things are working. I'll just have the motherboard in there minus one screw.
New problem: Now that it's in the case and screwed in, it doesn't want to stay on (it powers on then shuts down after a few seconds) and it only boots some of the time. Maybe I need to get some washers for between the motherboard and the metal pieces holding it up? Or maybe washers for the screws into the motherboard? The motherboard didn't come with any washers.
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08-24-2011, 12:25 PM,
#2
RE: Tier 3 won't boot while in case.
Myst it sounds like the motherboard is shorting out or grounding out somewhere. Check and make sure the mounts are all tight and dont over tighten the screws. Other then that I would look for wires to see if they are not grounding out somewhere.

Tier 6-Antec Nine Hundred Black Steel Case/ASRock P67 EXTREME4 G Intel Motherboard/Antec 620W 80+/Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) 4 x 256KB L2 Cache 6MB L3 Cache/CORSAIR 120mm Dual-Fan CPU Cooler/G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000)/SAPPHIRE 100314-3L Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card/SAMSUNG Spinpoint F3 1TB 7200 RPM Internal Hard Dri/ASUS DRW-24B1ST/24X DVD Burner
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08-24-2011, 12:52 PM, (This post was last modified: 08-24-2011, 12:55 PM by myst132.)
#3
RE: Tier 3 won't boot while in case.
(08-24-2011, 12:25 PM)Redheartwolf Wrote: Myst it sounds like the motherboard is shorting out or grounding out somewhere. Check and make sure the mounts are all tight and dont over tighten the screws. Other then that I would look for wires to see if they are not grounding out somewhere.

Thanks for the input! What does "mounts" mean? As in what the mobo is mounted to? I'll go check that and the wires right now though.

Also, here's a new development: All the screws are in and everything is connected, it just doesn't want to boot up when the case is vertical, but it will boot while it is lying down. It definitely sounds like a short, but I have no idea where.
I fastened the mounts. It works now. Thanks a lot! Out of curiosity, why would that cause it to not work?
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08-25-2011, 02:00 PM,
#4
RE: Tier 3 won't boot while in case.
The motherboard will sit on the metal mounts which are or should be brass or copper (i think) This keeps the circuitry of the motherboard off the metal parts of the case. The mounts have to line up with the mounting holes on the motherboard as those portions of the motherboard have the copper mounting holes that prevents the motherboard from getting grounded. When a motherboard is grounded to the case it has a HIGH probability of being ruined due static electricity or from a short in a wire.

Tier 6-Antec Nine Hundred Black Steel Case/ASRock P67 EXTREME4 G Intel Motherboard/Antec 620W 80+/Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) 4 x 256KB L2 Cache 6MB L3 Cache/CORSAIR 120mm Dual-Fan CPU Cooler/G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000)/SAPPHIRE 100314-3L Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card/SAMSUNG Spinpoint F3 1TB 7200 RPM Internal Hard Dri/ASUS DRW-24B1ST/24X DVD Burner
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08-27-2011, 04:56 PM,
#5
RE: Tier 3 won't boot while in case.
When the case is vertical it doesn't work, on it's side it works....

Sounds like there is something such as a loose wire or connecter making contact where it shouldn't and when in a different position it's a non factor.
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08-29-2011, 06:58 AM,
#6
RE: Tier 3 won't boot while in case.
That is exactly what I am thinking also. Check all your wires and contact points. Even though your tempted to leave the tower on its side, which is understandable, but when your gaming and it gets bumped and poof.....you will be happier in the end to correct the issue now then later Smile

Tier 6-Antec Nine Hundred Black Steel Case/ASRock P67 EXTREME4 G Intel Motherboard/Antec 620W 80+/Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) 4 x 256KB L2 Cache 6MB L3 Cache/CORSAIR 120mm Dual-Fan CPU Cooler/G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 2133 (PC3 17000)/SAPPHIRE 100314-3L Radeon HD 6870 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card/SAMSUNG Spinpoint F3 1TB 7200 RPM Internal Hard Dri/ASUS DRW-24B1ST/24X DVD Burner
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08-29-2011, 08:45 AM,
#7
RE: Tier 3 won't boot while in case.
You may also want to check for flexing of the motherboard. It's possible with larger graphics cards causing some flex in the boards (particularly if you're not using one of the mounting points). Some cases add a support bar for larger or heavier GPU's, although, this is usually only seen in some watercooling setups. Are you using the integrated GPU or a separate card? If you're using a separate card, try just the integrated GPU to test.
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