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Just built my first computer, monitor gets no signal?

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December 26, 2011 7:13:35 PM

Hi im new to building computer and I built my first computer today and my monitor is having trouble getting a signal. Now I have ran into some problems which may have messed me up in the longrun, so if anyone could give me suggestions on how to fix this it'd be greatly appreciated

First off, I dont even know if the CPU has power or not, all I did was slip it in and locked in place and put the stock fan over it. There is no CPU power pins on the motherboard I have which is a ASUS Socket AM3+ - Hybrid Crossfire Integrated Graphics Support AMD 760G DDR3 1600 Micro ATX Motherboards M5A78L-M LX located here: http://www.amazon.com/gp/product/B004ZCHV56/ref=oh_o00_...

Ill just go ahead and list my components...

DVD Drive: http://www.amazon.com/gp/product/B0033Z2BAQ/ref=oh_o00_...
Graphics Card: http://www.amazon.com/gp/product/B005D6P0NI/ref=oh_o00_...
Hard Drive: http://www.amazon.com/gp/product/B00461E7JE/ref=oh_o00_...
CPU: http://www.amazon.com/gp/product/B005UBNL0A/ref=oh_o00_...
RAM: http://www.amazon.com/gp/product/B003ZDJ42O/ref=oh_o00_...
PSU: http://www.amazon.com/gp/product/B004W2T2UQ/ref=oh_o00_...
Case: http://www.amazon.com/gp/product/B002UDK9U6/ref=oh_o00_...

Ok, so I first I did a test boot outside the case and all the fans spun although I dont recall getting a beep im assuming because I don't have a speaker or I just wasnt paying attnetion to a beep at the time?

So I continued to put everything in the case, and thats where I think I MAY have ran into my problem...

I put the PSU in fine, then when I went to drop the MOBO in, i noticed that the only possible way for the mobo to fit into the I/O Rear panel metal thing, that the left side of the mobo had to be lifted up from the case and slanted at an angle, which made it so I could not put any screws in the mounting screws on that side of the motherboard. So only one side of the mobo has mounting screws to secure it in place. While doing this I may have scratched the mobo in some spots, not harshly, but possible. The mobo made me very frustrated putting it in the case because I know it should not be on a slant just to get to the I/O panel.

So I moved on, I installed the GFX card, the stock fan, the CPU, the fan, the optical drive, the HDD, and the RAM. So I was watching a video from newegg located here: http://www.youtube.com/watch?v=d_56kyib-Ls

Everything in the case boots up, the fans start spinning, the MOBO light is on, and I turn it on with the power button, but the monitor gets no signal, I tried both VGA ports on the back, one with the MOBO, and the other with the graphics card.

Now from this video, he said theres a supplemental CPU power on the motherboard. Now I never plugged in any CPU power only the motherboard power. Now there is a blue 4-block cable near the CPU which is the only thing left that I deem possible for it to be the CPU power. But theres no plug from the power supply that even remotely could fit into it. This is probably my problem because I dont think a PC can boot without the CPU powered.

Heres a video of my case and setup, sorry its bad quality I took it with my iPhone, and sorry for the heavy breathing I didnt want to really talk because I probably dont have a clue what im talking about.

http://www.youtube.com/watch?v=5lX47kBqVYs&context=C3c3...

Also, I dont know if you can see it in the video, but on my HDD, the only plug from the PSU i could plug in was a long L-shaped plug, is that the power because theres a small L-shaped plug and a 4 pin connector next to it, and theres no plug from the PSU to put into them.
a b B Homebuilt system
a b C Monitor
December 26, 2011 7:42:46 PM

Couldn't tell if the 4 pin power supply cpu lead was installed by the cpu. Next time focus on the board and go slower. Is the backplate square on all four corners? Your board is an older model. It may need a bios flash for the 4100 to post.
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a c 78 B Homebuilt system
a b C Monitor
December 26, 2011 7:44:05 PM

You absolutely must plug something into the 4 pin port near to the processor or the processor cannot awaken and it cannot awaken anything else.

If all you have is an 8 pin connector from the motherboard, you can plug it in and have 4 pins hang off the side potentially. Also, sometimes you can break these 8's in the center and turn them into 4 + 4 and plug in only one side (the one with 2 square and 2 round ports). Many times this is planned by the manufacturer and easy to accomplish.

Additionally, a motherboard should never sit at an angle.

There should be some metal pieces supplied along with the case called standoffs that either plug into the case or screw into it somehow that you put the motherboard on that allows it to sit away from the case.

If you didn't put these in and you screwed the motherboard on the right side directly into the case wall it would cause you to have to bend the motherboard a lot in order to get it to fit in the rear panel.

If you screw the motherboard directly into the case, the computer will never turn on. The power from the PSU will go from the motherboard into the case and disappear as soon as the power button is pushed. The computer will detect that power is coming in and disappearing and it will turn itself right back off most likely.

Anyway, check on those things.
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December 26, 2011 8:13:35 PM

Thanks for the replies. I havent tried anything yet but I am about to after typing this. Yes the backplate is square.

Ok well from what Im recalling, I dont even have any 8-pin plugs that I can break into 4 + 4. I dont even think the motherboard came with any wires whatsoever. Is this 4-pin connector supposed to be from the power supply or from the motherboard?

Also, I think I know my mistake, and thats why its slanted. Im assuming the standoffs are little gold screws, I used tiny metal screws that I used to screw my power supply in so it was nailed directly to the case. I guess im going to take everything out of the case and restart from scratch.
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a c 78 B Homebuilt system
a b C Monitor
December 26, 2011 8:20:39 PM

The 8 pin that breaks into 4 + 4 is built into the PSU. If there isn't one like that then there is guaranteed to be either a regular 4 with 2 square 2 round OR a 4 + 4 separate cord where one side has 2 square 2 round.

No computer PSU comes without the processor cable. It may be hard to find in the mess, but it is there.

Standoffs can come in many shapes and sizes, but gold screws with one male and one female end are one possibility. The male end would screw into the case and the motherboard would sit on top of that and a screw would screw the motherboard into the female end of the gold screws.
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December 26, 2011 9:34:06 PM

Thank you so much Raiddin, I reinstalled everything with the standoffs, which were the issue. Everything just booted up with the POST, I was so happy lol.

One more question before i'm off, now it says too insert a Boot Device or insert something into the Boot device after the POST. Does that mean to install the operating system, because I'm about to go buy Windows 7 Home Premium.
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a c 78 B Homebuilt system
a b C Monitor
December 26, 2011 9:41:37 PM

Yes, if you dont have an operating system on any of your hard drives and you don't have any bootable media in the computer than it will say no boot device is found.

If you put in a Windows install CD, it should probably boot to it if your CD drive is the first boot device in the BIOS.

If you have multiple hard drives, do yourself a favor and ONLY connect the one that you want Windows installed on and no others while you are going through this install process. Then shut down the computer and plug in the other ones.
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January 8, 2012 5:42:44 PM

I just want to pop in here and thank the threads author and contributors for such a well written and informative thread. I purchased the ASUS M5A78L-M LX motherboard http://www.asus.com/Motherboards/AMD_AM3Plus/M5A78LM_LX... motherboard the other day, installed it last night, and presto, no video. I am not at home right now, but after reading the posting about the little blue, square, power item, I cannot wait to get home and try out the solution. Like manuvo I saw no cables, coming from the power supply, that look like it would fit, but based on the instructions, I will see what I can get in there.

Very, very kewl.

- ebaleytherogue
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