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Help urgently needed. Pc won't boot post bios after changing cases.

Last response: in Systems
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January 22, 2014 8:21:47 AM

Hello,
I just yesterday switched out my components to a new case, on first boot I was getting "verifying dmi pool data...... Update success" which was odd at first because I never had the last part there before. After trying to boot several times from boot menu I had no luck
I tried changing a couple things in bios, running bare minimum hardware and now when I go post bios I get nothing but a blank screen with a blinking underscore. I tried reassembling the pc following the motherboard manual, and tried again still having the same issue. I can't open my boot menu to select the hard disk but all the hardware shows up in the bios setup.
Also for some odd reason the case won't reset the pc properly, the fans keep going and the screen goes blank after pressing the button.
I I have determined that it's not my video card(currently using on board)
My hard disk should be fine as it was not damaged. I took out cmos battery, reseated the ram, changed sata cables.

I was hoping someone could help me determine what might have gone wrong from simply just transferring components to a new case. And possibly tell me how to get everything back to normal.

I am running
AMD FX-4100 Quad core
Mobo: GA-78LMT-S2P
2TB HDD
1GB R7770 AMD radeon
8gb ddr3 RAM
Cooler master ex2 625w
January 22, 2014 8:25:45 AM

Go through everything in the guide in my signature and let me know what happens.
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January 22, 2014 8:29:12 AM

With the new case - there may be an issue with the power/reset button connections, verify that they are connected properly.

Did you backup your data prior to the upgrade? (Always do this!!!!!)

On the boot menu - was this in the BIOS settings or boot menu for the operating system?
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January 22, 2014 12:45:54 PM

ronintexas said:
With the new case - there may be an issue with the power/reset button connections, verify that they are connected properly.

Did you backup your data prior to the upgrade? (Always do this!!!!!)

On the boot menu - was this in the BIOS settings or boot menu for the operating system?


I did make sure the reset sw was in the right spot, it attempts to restart when I press the button the screen goes blank and the fans run at fluctuating speeds for a while then nothing, screen goes blank.

As for the boot select I'm talking about the bios key (f12) for me. Has not worked since right after I switched cases though it reads both my HDD And Dvd drive in the bios setup. My backup drive fried a while ago so I was not able to do a backup of my files unfortunately.
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January 22, 2014 12:50:44 PM

It looks like your motherboard isn't reading the boot sector of the hard drive (this is what allows it to be on the boot menu). I would try to backup important information off the drive first, then try to do an install of the OS on the drive.
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January 22, 2014 5:51:34 PM

So I did all the things that were in the link posted and I have come to the conclusion it's not the hardware and if any hardware it would be the HDD. I am currently in the process of downloading a new boot able working version of windows 7 that I will put on a disc and attempt reinstall of windows. I get the feeling that for some reason this may not even work but I will try and let you know how it went after the fact. Thank you both very much.
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January 22, 2014 6:10:40 PM

Make sure DRAM sticks all are well seated, and that all standoffs used and screwed in snug to secure mobo, might be shorting on case, could pull the guts and bench it
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January 22, 2014 6:57:54 PM

I pulled all my guts and breadboard ed everything with just the HDD, psu, Mobo and monitor connected, I ran it but I got the same screen as before and was still unable to manually select the boot device. Don't know why buy it hasn't let me do this since yesterday shortly after I transferred the components to the new case.

I just inserted a new os disc that is working. I double checked on my roommate's laptop. I got no prompt or anything, my boot priority is set to cdrom and still won't allow to manually select boot device. Could it be something with the motherboard?
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January 22, 2014 7:03:49 PM

Could be, sound stupid but might try a different SATA and power connector to the CD/DVD player - does it light up when power applied
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January 22, 2014 7:14:41 PM

Lights up for a few seconds when I boot the pc up then nothing. Just goes to the same screen everytime. And even when I go out of bios it doesn't restart properly. Fans just keep going and then displays nothing and no beep.
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!