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Hp 6820s will not power up. on button light and fan work for 5 seconds then all power goes

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Reset your bios settings put away cmos cell for 15 minutes .also u can reset your bios with jumpoer settings.
check your RAM refix again after clear it and its slot.

Posted on Nov 01, 2008

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I have no power on desktop hp slimeline 5703. I plugged in to seperate socket and power button lights up and fans start then all shut down. What can I try next?


hold down the power button for about 5 seconds. then just press it normally. If that does not work there may be an internal fault causing the power supply to shut down. Get it looked at by your local computer repair store.

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If you are increasing the RAM from 1Gb to 2Gb then the RAM maybe incompatible. Try using a RAM module as the original make and speed.
Try installing one RAM module at a time to see if one of the RAM modules is faulty.
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Step 1:

Lets try this...

Unplug the cpu

Step 2:

remove the battery from on the mainboard

Step 3:

press and hold the power button for 30 seconds

Step 4:

release it

Step 5:

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Step 6:

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1 Answer

HP IQ 526 When I press the power button the backlights flash and the power led goes yellow after a few seconds the screen flashes again and the fans restart then it just stays dark, if I hold the power...


Hi Jerry,
Do follow the steps below...
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2. Remove the CMOS battery and switch on the PC_ Switch off_Re fix the battery to the slot_Switch on...
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Have a HP m7470n. The green power light in the back is constantly on. The power button flashes blue and orange (~3 seconds each). The computer wont turn on. When I unplug the cord and plug it back in, the...


In my case it turned out to be a weak power supply. It would work sometimes and not others. If stone cold, it would not boot. If I unplugged 1 thing, like the hard drive or the CD Roms, it would boot. Tested the old power suppy and it seemed to pass. But once I connected a new power supply, the computer has worked fine ever since.

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1 Answer

My "hp pavilion a220n" won't power on. ... I was


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2 Answers

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2 Answers

HP Compaq Presario SR1820NX will not turn on


i worked for hp and compaq it is well known issue to reslove this issue

1#turn off the computer and uplug the power cable from the computer and then hold the power button for 20 second then turn on the computer and the momment you back to desktop screen
go to download driver from hp site and here is the web site http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=pv-43507-1&lc=en&dlc=en&cc=ca&lang=en&os=228&product=1841849 and restart the computer .

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1 Answer

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hi friends, unpluug the power chord from the wall jack after that press and hold the power button in the front for about 15 seconds, connect the chord back in and try it. if it does the same then look at the rear side of the cpu box (where the power chord goes in and look for a small fan inside the power supply box, it has to be spinning). if not then the power supply (smps) has goen bad. now if the fan is sipnning try disconnecting all the extra periferals eg printer and stuff, still nogo then try opening the cpu box (reffer owners manual). take the RAM out and try to power up the system, if it starts beeping like beep ...beep... peeeep... then turn it off put the ram sticks back in and it should work fine...
NB:-for the owners manual check this out: http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&product=470506&lc=en&jumpid=reg_R1002_USEN

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