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Cmos reset on psu disconnection from outlet

post #1 of 7
Thread Starter 
Like the title suggests that is the situation I encountered the other day.

this is what happened...
A few months ago I purchased my current Vid Card a Zotac 550 ti, mailed in all required information for rebate, well I forgot to write down serial number of card for records.
I pulled desktop from wall, disconnected from wall, opened her up and pulled vid card. after writing down all information I needed for registration and tracking of rebate I replaced the card and plugged everything back in.... during POST I got an error, CMOS has been reset. press blah blah blah to continue or blah to enter bios.... so I go into bios, set my config (includeing system time and date, cause that was reset as well) and booted into windows normaly.

Would anyone have any idea what may have caused this? I never touched anything on mobo other than vid card... system was unplugged from wall for approx. 20 minutes.

Any thoughts would be greatly appreciated
post #2 of 7
Have you always unplugged the power cable from the wall while the PSU itself was still turned on (I know that you shut down first)?

I doubt that doing this would cause a CMOS reset, but I have always turned my PSU off before unplugging it, so I don't know (and I'm not about to test it).
It's a computer!
(20 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
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Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(20 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #3 of 7
Thread Starter 
yes, I did a full shutdown prior to disconnecting from wall... and after I unplugged psu from wall I pressed and held powerbutton on case for 25 seconds before opening case and touching components

forgot to mention that, sorry
post #4 of 7
I'm no pro, but the first thing that comes to mind for me is that your motherboard battery needs to be replaced. If the battery isn't backing up your settings, completely taking power away from the motherboard should reset it, right?
post #5 of 7
Thread Starter 
that would be my thought, but the board is relitively new.... I bought it at tax season this year... so I am at a loss
eh, atleast my OC profiles are saved somewhere in bios lol
post #6 of 7
Quote:
Originally Posted by HardheadedMurphy View Post
yes, I did a full shutdown prior to disconnecting from wall... and after I unplugged psu from wall I pressed and held powerbutton on case for 25 seconds before opening case and touching components

forgot to mention that, sorry
That's not really what I asked, though. This is what I'm asking: did you flip the PSU's power switch to the off position before unplugging the power cable from the wall?

If not, then have you always done it this way?
It's a computer!
(20 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(20 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #7 of 7
Thread Starter 
at the time the incedent occured, that was the first time I ever shut down and disconnected from wall since first power on from build date. As for switching off switch on psu, no that didnt occur to me at the time
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