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Motherboard not booting up

post #1 of 5
Thread Starter 
My pc has not given me any problem since it was custom build until now. For the past few days, every time I press the power button, the power light is flashing with the cpu fans and graphics card and psu fan on and suddenly stops (all the fans stops running and the power light dies without POST lights ever showing) and then it comes back on, all happening in less than a second and even after half an hour, it still go on. I turn of the switch of the psu for 5 minutes and then turn it back on. The light from the power led on the MB and LAN are on but when I press the power button, the same problem happens again and I tried doing for a few times and sometimes the LAN light is off although the power led on the MB is on, pressing the power button doesn’t seem to do anything not even the moving of fans. I checked the manual of the MB and there is a power switch on the board and pressing it for 3 seconds as instructed, the computer fails to start at all. After trying for a few times, the computer boots up into windows and it ran fine for 6-7 hours of Skyrim and kingdom of amalur reckoning without any problems and restarted the pc without any problem(restarting by clicking restart in windows 7). But when I shut the pc down, and starting it back straight away, sometimes it is able to boot into windows and sometimes the same problems happens again. I downloaded the latest drivers for the MB including BIOS but still no luck. There was a few times that a white light appeared but there is no information of the light on the internet and in the manual on Intel website. I took a photo of the light. As far as I remember the white light appears with the power led on the MB but no light on LAN and pressing the power button of the MB and the case don’t seem to boot the MB. I have tried reconnecting the wires but still no luck.

These are the specs:
Intel Core i5 750 450
Intel motherboard DP55WG
2x2GB Kingston Ram 1333
500GB western digital
XFX ATI HD5770
OS: Windows 7 Pro 32bit
Power Supply: Topower M5 Silent EZ-600w

I am desperate to get the pc running as I have assignments that are almost due. Any help would be greatly appreciated.
post #2 of 5
I would like to offer any help I can but it would help me and others if you did two things.

Firstly use some grammer and punctuation. I'm not trying to be cruel but I got half way through that and gave up. My grammer certainly isn't perfect but breaking things down into steps of what you have done makes it alot easier for other people to see what the situation is and provide you with help.

Secondly I would fill out your system specs in your sig at the bottom. This can be done in your profile, at the bottom, under my rigs then "create a new rig". Not critical as you have provided your system specs in your OP. Again this just makes it easier for people to provide you with help.

For now I would suggest checking that everything is securely plugged in. Disconnect and reconnect everything just to be sure. Not just connectors though. Make sure your RAM and GPU are secure. I would then clear your CMOS. I am unsure of how to do this on your board but I am sure a quick google search will provide the answer.
Tevatron K
(15 items)
 
 
CPUMotherboardGraphicsRAM
2600K @ 4.8ghz Z77 Sabertooth R9 290 8GB Samsung 30nm @ 1866mhz 
Hard DriveHard DriveOptical DriveCooling
M500 240GB SSD 3x 3TB HDD's Sony DRU-V200S Custom water cooling 
OSMonitorKeyboardPower
Windows 7 64bit QNIX 27" 1440p @ 96Hz Ducky 1008 BeQuiet 1200w 
CaseMouseMouse Pad
HAF 932 Logitec G5 Table top 
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Tevatron K
(15 items)
 
 
CPUMotherboardGraphicsRAM
2600K @ 4.8ghz Z77 Sabertooth R9 290 8GB Samsung 30nm @ 1866mhz 
Hard DriveHard DriveOptical DriveCooling
M500 240GB SSD 3x 3TB HDD's Sony DRU-V200S Custom water cooling 
OSMonitorKeyboardPower
Windows 7 64bit QNIX 27" 1440p @ 96Hz Ducky 1008 BeQuiet 1200w 
CaseMouseMouse Pad
HAF 932 Logitec G5 Table top 
  hide details  
Reply
post #3 of 5
Thread Starter 
Quote:
Originally Posted by Jokah View Post

I would like to offer any help I can but it would help me and others if you did two things.
Firstly use some grammer and punctuation. I'm not trying to be cruel but I got half way through that and gave up. My grammer certainly isn't perfect but breaking things down into steps of what you have done makes it alot easier for other people to see what the situation is and provide you with help.
Secondly I would fill out your system specs in your sig at the bottom. This can be done in your profile, at the bottom, under my rigs then "create a new rig". Not critical as you have provided your system specs in your OP. Again this just makes it easier for people to provide you with help.
For now I would suggest checking that everything is securely plugged in. Disconnect and reconnect everything just to be sure. Not just connectors though. Make sure your RAM and GPU are secure. I would then clear your CMOS. I am unsure of how to do this on your board but I am sure a quick google search will provide the answer.

Thanks for replying so fast.
I am sorry readers about my grammatical errors as I was frustrated and desperate to pass my assignments up. I have added the specs in my profile. I cleared the CMOS with some help of the manual but the pc requested me to set CMOS to normal and reboot. Set it to normal and when I press the power button, the pc didn't boot up but the white light and green light came on even after turning off the psu switch and turning it back on after the lights were off, but the same problem appears for 5 times until now. By the way, what does the white light mean??
post #4 of 5
Not sure what the white light deffinately means. Because it is located near your RAM so it could well mean that there is an issue with your RAM. Try boot with just one stick in and if that fails then try and boot with the other stick in.
Tevatron K
(15 items)
 
 
CPUMotherboardGraphicsRAM
2600K @ 4.8ghz Z77 Sabertooth R9 290 8GB Samsung 30nm @ 1866mhz 
Hard DriveHard DriveOptical DriveCooling
M500 240GB SSD 3x 3TB HDD's Sony DRU-V200S Custom water cooling 
OSMonitorKeyboardPower
Windows 7 64bit QNIX 27" 1440p @ 96Hz Ducky 1008 BeQuiet 1200w 
CaseMouseMouse Pad
HAF 932 Logitec G5 Table top 
  hide details  
Reply
Tevatron K
(15 items)
 
 
CPUMotherboardGraphicsRAM
2600K @ 4.8ghz Z77 Sabertooth R9 290 8GB Samsung 30nm @ 1866mhz 
Hard DriveHard DriveOptical DriveCooling
M500 240GB SSD 3x 3TB HDD's Sony DRU-V200S Custom water cooling 
OSMonitorKeyboardPower
Windows 7 64bit QNIX 27" 1440p @ 96Hz Ducky 1008 BeQuiet 1200w 
CaseMouseMouse Pad
HAF 932 Logitec G5 Table top 
  hide details  
Reply
post #5 of 5
Thread Starter 
Thank you for replying.
I tried that step before and failed so I contacted Intel online chat service and they told to do a recovery for the BIOS and that was the problem as the computer refused to start and I was stuck for 5-6 hours and finally the pc started and I managed to recover the BIOS and the computer was able to boot into windows and they told me to monitor it. I mention the white light and first they didn't believe that there is such a light but after a long persuasion, they finally said that they will have Intel to contact me as I have a photo of the light as they themselves haven't heard this white light before nor seen it and will investigate it. Once Intel provide the answer, I will update my post so that if future, anyone who has the same problem will be able to know what is the problem.
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