CPU fans, LED working, no beeps, no POST/BIOS screen, complete black screen

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CyberEgg

Honorable
Oct 23, 2013
23
0
10,520
PC won't boot/POST, Only works after unplugging main power cord and letting it rest for some hours only to see it go in a reboot loop at 'loading windows' screen. Safe mode reboots at classpnp.sys
FX-6300
HD 7770 2GB
ASUS M5A97 R2.0
CORSAIR vengeance 4GB DDR3
SEAGATE 2TB
CORSAIR VS 550

Suggest methods to fix this issue. Thanks!
 
Solution
C
I tried clearing CMOS by using jumpers and discharging the battery, but to no avail. Also I would like to note that when tested with a GT 210, PC booted fine, no issues, random crashes, etc.
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Mojazz

Notable
May 11, 2017
265
0
810
Have you added any new hardware? Did you attempt to do any changes in the bios before this problem happened? You do not leave to leave the power cord disconnected to effect a change. Try this to clear the bios next time. Turn off computer.......disconnect power cord....... remove cmos battery. Wait approx one minute......reinstall battery...... connect power cord and turn the system back on. We will pick back up from there and after you answer the above questions.
 
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C

CyberEgg

Honorable
Oct 23, 2013
23
0
10,520
I tried clearing CMOS by using jumpers and discharging the battery, but to no avail. Also I would like to note that when tested with a GT 210, PC booted fine, no issues, random crashes, etc.
 
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