Need help! Strange error at boot, only when I haven't previously killed power.

Inbl

Reputable
Jun 23, 2014
7
0
4,510
I'm having some strange problems and wanted to see what you guys thought.

First of all, here's my part list:

  • CPU: Intel Core i7-3770K 3.5GHz Quad-Core Processor
    Motherboard: Intel DZ77RE75K ATX LGA1155 Motherboard
    Memory: Samsung 8GB (2 x 4GB) DDR3-1600 Memory
    Storage: Intel 330 Series 180GB 2.5" Solid State Drive
    Video Card: Sapphire Radeon HD 7970 3GB Video Card
    Case: Corsair C70 Military Green (Green) ATX Mid Tower Case
    Power Supply: Antec EarthWatts 750W 80+ Certified ATX Power Supply
    Optical Drive: Lite-On iHAS124-04 DVD/CD Writer
    Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit)

Here's my problem:

I boot to windows, everything works fine. I shutdown my computer, and a bit later
I try to turn it on. I hear 3 beeps (memory error for my board). Computer turns off,
then turns itself back on to try again. I hear 3 beeps again. This repeats over and over.
I kill the power to my PSU, and I turn it back on. Everything works fine.

Here's what I know:

My RAM passes memtest. Both sticks, one stick by itself, and the other stick by itself.

This problem is present with both of the sticks, one of the sticks, but not the other.
(Oh, there must be a problem with that one stick!!!)

I bought some new RAM and tried it with both sticks, and the problem is still here.
(What?!?)

I used a PSU tester on my PSU, and the voltages were all correct according to the tester.

Does this sound like a broken motherboard? Do I need to do more intensive PSU testing?
Are both sets of RAM coincidentally broken? Is it (gasp!) my CPU?

Thanks in advance for taking a look at this.
 

Inbl

Reputable
Jun 23, 2014
7
0
4,510


Would you say I should go ahead and try out a new motherboard, or should I keep looking for smaller things that may have gone wrong? (I don't want to replace my mobo and then find out that it wasn't actually the problem)
 

Inbl

Reputable
Jun 23, 2014
7
0
4,510


Would you say I should go ahead and try out a new motherboard, or should I keep looking for smaller things that may have gone wrong? (I don't want to replace my mobo and then find out that it wasn't actually the problem)
 

Inbl

Reputable
Jun 23, 2014
7
0
4,510


Oops, didn't mean to respond to your post twice...anyways, what else would you suggest doing before replacing the board?
 

Inbl

Reputable
Jun 23, 2014
7
0
4,510


Okay thanks so much! I'll be installing a new MOBO this week I suppose, hopefully it goes well.
 

henkbas

Distinguished
Sep 12, 2011
91
0
18,660
could it just be a warning of the fan speed of your cpu cooler. My cpu gives a three beep error when it detects my noctuas are running below 300 rpm but I set it to continue booting anyway.

Play with that it bit in bios/uefi to see if that isn't the culprit before you buy a new mobo!