New case, computer powers on but no display or POST beeps.

jtnoble321 · Nov 14, 2015

FINAL EDIT!!!: This is after the conclusion of the problem.
After many tries of different things, eventually I broke down and bought a new motherboard.
The things I tried included:
Remounting RAM
Remounting HDD
Redoing Cables
Using Insulators with motherboard
Resetting CMOS
Using different amounts of RAM

Buying that motherboard was exactly what I had to do.
I bought an ASRock H97 PRO 4 (LGA1150 Socket) and after a bit of troubleshooting, it worked like a charm.

Thanks for all of the help, and if you have the same problem, I hope this forum helps you out!

Original Post ------------------------------------------------------- Original Post

I just got a new case, the Coolermaster HaF 912, and I got it for better airflow. I installed all of my components from my previous computer (a dell Inspiron 3847) and when I power on, the fans spin, but there is no display nor beeps. I do not believe my motherboard (LGA1150 88DT1) has a speaker plugin to do POST beeps so I cannot diagnose the problem. I am unsure on what my problem may be!

I've tried moving RAM around
I've redone front panel connections
I've checked all connections
I've removed the GPU and plugged into the onboard VGA
I've removed the CMOS battery for a total of 10 minutes

Last thing I want to do is take my motherboard out and redo things since it starts up, just no display. Please help!

popatim · Nov 14, 2015

Being this is a Dell motherbd there is a chance that you missed taking out one of the standoffs from the motherbd tray. Dell doesnt use the standard ATX screw layout with that board as far as I can remember. I beleive there is also 1 screwhole in the corner that you would need to insulate (top and bottom) when putting in a screw - It doesnt have the normal copper ground pad/circle around it so its easy to spot. Or you can just use a plastic standoff if you have one.

boodaddy · Nov 14, 2015

Can you take a quick photo of your motherboard inside the case and post it?

jtnoble321 · Nov 14, 2015

I would think it wouldn't even power on if that were the case, but I will try it and get back to you when it's done

jtnoble321 · Nov 14, 2015

boodaddy :

boodaddy · Nov 14, 2015

Thanks for that. I see you have power going to the 12V-ATX by the CPU which is good (Make Sure That Has A Good Connection). Everything looks good to me. I know it would suck, but I would take a look at @popatim's post and see if this is the issue.

If you took out the external video card, and still can't get a post screen on the internal card, I would have to assume there could be a short somewhere, and the standoff could be the issue.

Just be careful when touching the motherboard. Don't forget to ground yourself. If you don't have a wrist band, touch the PSU or anything metal that is grounded to discharge for a couple seconds.

jtnoble321 · Nov 14, 2015

popatim :

There was one that looked odd on the backside, so I put a insulator on it, but I still don't have a display.

boodaddy · Nov 14, 2015

jtnoble321 :

Were you grounded when you took the motherboard out? Sometimes a little static can take them out. First thing is to go back and check is the 12V ATX power cable you have running beside the CPU. Try a different cord if possible. Sometimes the prongs can come loose, and not give you a good connection.

If you want to be 100% sure, you need to take the motherboard out, and put something underneath it like a peice of cardboard etc... covering the whole bottom of the board. This will tell you 100% if the problem is a standoff.

Other then that, you could have shorted out the board, or it could possibly be a PSU problem. Try 1 stick of ram switching them out. First stick of ram in slot 1, if no post, same stick slot 2. If no post, second stick of ram in slot 1, if no post, same stick in slot 2.

Here is a diagram if it helps.

boodaddy · Nov 14, 2015

Forgot to mention you can try (Number 8) on the diagram which is the CMOS reset jumper just for giggles. Also, you can try unplugging the USB connector, and sata as well. Some motherboards use the sound card for post sounds. You can try hooking up pc speakers to test that. Most motherboards have a speaker connection where you plug in the power button etc...

jtnoble321 · Nov 14, 2015

boodaddy :

jtnoble321 :

Were you grounded when you took the motherboard out? Sometimes a little static can take them out. First thing is to go back and check is the 12V ATX power cable you have running beside the CPU. Try a different cord if possible. Sometimes the prongs can come loose, and not give you a good connection.

If you want to be 100% sure, you need to take the motherboard out, and put something underneath it like a peice of cardboard etc... covering the whole bottom of the board. This will tell you 100% if the problem is a standoff.

Other then that, you could have shorted out the board, or it could possibly be a PSU problem. Try 1 stick of ram switching them out. First stick of ram in slot 1, if no post, same stick slot 2. If no post, second stick of ram in slot 1, if no post, same stick in slot 2.

Unfortunately I don't have a port on my motherboard for the POST speaker, but I did not realize my CMOS jumper was in that spot. I tried the jumper that looked identical next to the battery and nothing happened. i will try resetting CMOS but if that doesn't work I'll try your cardboard method.

jtnoble321 · Nov 15, 2015

boodaddy :

jtnoble321 :

Were you grounded when you took the motherboard out? Sometimes a little static can take them out. First thing is to go back and check is the 12V ATX power cable you have running beside the CPU. Try a different cord if possible. Sometimes the prongs can come loose, and not give you a good connection.

If you want to be 100% sure, you need to take the motherboard out, and put something underneath it like a peice of cardboard etc... covering the whole bottom of the board. This will tell you 100% if the problem is a standoff.

Other then that, you could have shorted out the board, or it could possibly be a PSU problem. Try 1 stick of ram switching them out. First stick of ram in slot 1, if no post, same stick slot 2. If no post, second stick of ram in slot 1, if no post, same stick in slot 2.

The cardboard idea did not work, I am still getting no signal

EDIT: switching RAM and trying just one stick also doesn't do anything

EDIT2: Neither did CMOS. Not sure what to do now.

boodaddy · Nov 15, 2015

The only thing I can think of, is to unplug absolutely everything except for power switch, power, memory, and video. If you still don't get a post, leave all of that still disconnected, and try plugging your video card back in to make sure something is not messed up with your onboard vga.

Good Luck

jtnoble321 · Nov 15, 2015

boodaddy :

Unfortunately I've tried that, as well as my motherboard has an hdmi as well that I attempted to plug into. Thanks for trying to help though, last resort is buying a new motherboard.

boodaddy · Nov 15, 2015

jtnoble321 :

If you go with the same board they have them on Ebay for $99 bucks. It could be your CPU that went out though. If you can get one to test, that could help. If it is your motherboard, I might recommend getting one off newegg because they have some great boards for around that price.

If you have a PC shop close by I would find out how much diagnostics cost, so they could give you a second opinion. Just to be 100% sure so you don't waste money.

jtnoble321 · Nov 15, 2015

boodaddy :

jtnoble321 :

If you go with the same board they have them on Ebay for $99 bucks. It could be your CPU that went out though. If you can get one to test, that could help. If it is your motherboard, I might recommend getting one off newegg because they have some great boards for around that price.

If you have a PC shop close by I would find out how much diagnostics cost, so they could give you a second opinion. Just to be 100% sure so you don't waste money.

I do have a few computers in the house that work so I will try using a different motherboard. Thanks for the help, and I will get back to the thread once I've tried it.

boodaddy · Nov 15, 2015

jtnoble321 :

boodaddy :

I do have a few computers in the house that work so I will try using a different motherboard. Thanks for the help, and I will get back to the thread once I've tried it.

Sounds good man. Hope everything works out.

jtnoble321 · Nov 16, 2015

Ordering an ASRock today, thanks for all of the help guys.

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157511

boodaddy · Nov 16, 2015

jtnoble321 :

No Problem man. Great 3 year warranty on the board. Can't go wrong with ASRock!

jtnoble321 · Nov 16, 2015

boodaddy :

I do have one question, could my computer possible not work because my WLAN chip ( it's connected to my previous case and motherboard

boodaddy · Nov 16, 2015

jtnoble321 :

It's worth a shot. You have already tried disconnecting everything else. Try taking it out, and see if it boots up. (Fingers Crossed)

jtnoble321 · Nov 16, 2015

boodaddy :

jtnoble321 :

It's worth a shot. You have already tried disconnecting everything else. Try taking it out, and see if it boots up. (Fingers Crossed)

nope, ordered the motherboard anyways so I should get it thursday

jtnoble321 · Nov 16, 2015

It also made a weird high pitched noise so I wont attempt to Do anything further

popatim · Nov 17, 2015

Just for reference, the screwhole & standoff I was referring to is the one just left of the battery in that pic. The Dell layout has it almost an inch lower than the normal ATX form-factor. It should be in line with that rear screwhole by the pciex1 slot that's labelled 18.

The one that needs the plastic stand off is the bottom Right hole. See how it doesn't have the ground pad encircling it like all the others do...

jtnoble321 · Nov 19, 2015

popatim :

I got the motherboard and still no display, but post beeps. Here is a video with the post beeps, its an asrock mobo

https://youtu.be/Fzrw8MiwPI0

boodaddy · Nov 19, 2015

jtnoble321 :

I believe four short beeps means a memory error. The memory from your other PC might not be compatible with that board. Try re-seating the memory, also do you have numbers on the ram? What are the model numbers etc of the chip?

If you take the ram out and boot you should at least get some continuous long beeps signifying that your motherboard doesn't detect any RAM modules.

New case, computer powers on but no display or POST beeps.

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