Question about Dell Precision 690 Motherboard

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Dell 690, power button does not work

Dell 690 power button does not turn on computer, but if i remove cmos battery for 5 seconds then replace pc powers uip automatically, any suggestions?

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  • Dell Master
  • 7,733 Answers

Your MB is fried.

Posted on Dec 06, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 1027 Answers

SOURCE: Can´t turn on the notebook. After holding

Battery dead, power input dead, motheboard dead. Take your pick.

Posted on Jun 16, 2010

  • 263 Answers

SOURCE: No power after 5 second

Check the cpu fan and fins are clean if you have to take processor out make sure you reapply thermal compound, Also check the ram is seated correctly.Also check the psu is functioning correctly as it could be a faulty psu . Good luck John

Posted on Aug 02, 2009

  • 24 Answers

SOURCE: Dell 4150 will not use AC power

Only way is to open it up and check that you're AC connector on the board is ok. If that's fine than it might be the charging circuit.

Posted on Jun 03, 2009

  • 320 Answers

SOURCE: i am using a dell

several things could cause this problem your power cord may not be supplying enough voltage or amperage or both. the ram could have been compromised or the hard drive may not be initializing. i would look at the motherboard last. illiminate the easy stuff first. check voltage level on your ac power supply. try different ram open the hard drive bay and make sure it is comming up to speed.
certain thing happen in a given order during the boot process. the bios loads so the start up starts it loads to the ram and bring the hard drive up then video. your unit is stopping in the very beginning of these steps. follow these steps to isolate the cause.

Posted on Nov 06, 2010

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1 Answer

Led indicator lights


Following are the various ways to clear the CMOS or NVRAM on Optiplex systems:-

The computer must be disconnected from the electrical outlet to clear the CMOS setting.
Remove the computer cover.
Locate the CMOS battery on the system board.
Note the orientation of the battery, usually the plus side is up, and remove it.
Wait for 3 to 5 minutes for the CMOS to clear.
Replace the battery in the socket.
Replace the computer cover.
Plug the system and devices back into the electrical outlets and turn them on.
And Sec option jumper setting also available you can used:-
Turn off the computer and disconnect the power cable from the electrical outlet.
Remove the computer cover.
Locate the 3-pin CMOS jumper (RTCRST) on the system board.
Remove the jumper plug from pins 1 and 2.
Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
Replace the jumper plug on pins 1 and 2.
Close the computer cover.
And More Support see link:-
ftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-755_user's%20guide_en-us.pdf

If more Technical Support Call.

Aug 22, 2013 | Dell Optiplex 755 Desktop Desktop Computer...

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Elimination of power flee on desktop computer


Can you rephrase the Question? "Elimination of power flee"?

May 09, 2013 | Dell Inspiron 530 Desktop Computer

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Dell desktop won't stay shut down


Here's a resource on Dell that might be of use:
http://en.community.dell.com/support-forums/desktop/f/3514/p/19410137/19961690.aspx#19961690

Apr 10, 2012 | Dell OptiPlex GX520 PC Desktop

1 Answer

Hi Everybody, My server Power Edge 650 asking to press F1 during every startup. How to get rid of this. Thanks Ezhilmani


Hi There.

Symptoms
* cmos checksum error messages
* error with date time error

Solution
* Replace CMOS battery.

Procedure

1. Locate your CMOS battery.


pcsyke_74.jpg

2. Turn of your Desktop.
3. Remove the power cable from your Desktop.
4. Press power button to discharge your Desktop from electricity.
5. Desktop should be laid down horizontally.


pcsyke_71.jpg

6. Remove the battery and avoid forcing.
7. Replace the battery with same model or equivalent.
8. Put the new battery firmly in the allocated slot. (Positive side should be visible).
9. Plug the power cabe and start up your PC.
10.Enter Bios by pressing DELETE or F2 and load defaults save and quit, it will reboot automatically.
11.Enter Bios modify settings save and quit.
12.The End

Hopefully this information helps.
Thank you for using FixYa.

Jul 19, 2011 | Dell Poweredge 650 - P4 3.0GHZ, 1GB/40GB...

4 Answers

I need to reset cmos password for my Dell D340 my computer system number is #BZ6X33J-595B please help. Msizi


dells not gonna do **** for you.
removing the cmos battery wont work on these dells
again,
here's the pw for your computer:
jqhuulq3

Jan 04, 2011 | Dell Latitude D430 Notebook

1 Answer

When the laptop is switched on, the processor cooling fan is heard to come on and the power on LED is lit.The media control LED's light for a very short time. After about five seconds, the cooling fan goes...


Try taking CMOS battery out, power it and put it back in after 5 seconds.
Could be several things:memory. motherboard, BIOS needs update...

I suggest taking it to a PC tech

Jul 28, 2010 | Dell Inspiron 1526 Notebook

1 Answer

P5RD1-V BOOT PROBLEM


The CMOS, which stands for complementary metal-oxide semiconductor, is the hardware component of a computer that supports the BIOS, or basic input output system. The two terms are often used interchangeably, and the two technologies work together to perform the same basic function. They maintain the low-level settings on a computer, letting the computer know, even before the computer's operating system starts, what kinds of hardware the computer has available, such as hard drives and video display adapters. A special battery located on the computer's motherboard powers the CMOS. To reset the CMOS on a Dell computer, briefly remove and then replace the battery
  1. Turn off the computer. Disconnect all cables and detach all devices, including USB devices, from the computer. Press and hold the computer's power button for 10 seconds after it has been unplugged. This grounds the system board.
  2. Step 2 Remove the computer cover. All Dell systems have a cover panel on the chassis that you can remove so that you can access the system's motherboard and internal components. For some Dell computer lines, such as OptiPlex, the computer cover is held in place by a release latch located on the back of the computer. Pull the latch to release the cover and then slide the over up and away. Other lines, such as Dimension, have large, slotted thumbscrews. Turn the screws counter-clockwise until they disengage from the chassis, the slide the cover off the computer. Dell computers often ship with the computer's user guide in CD form or with the guide pre-loaded on the system's hard drive. You can locate the instructions for removing the cover from your particular system in the user guide.
  3. Step 3 Locate the CMOS battery on the system's motherboard. CMOS batteries range in size from size and thickness from about the size of a nickel to about the size of a quarter. The CMOS battery will generally be labeled CMOS on the motherboard and will be the only battery openly exposed on the motherboard.
  4. Step 4 Remove the CMOS battery by prying it gently up out of its socket. The sockets are specifically designed to allow the battery to be replaced.
  5. Step 5 Wait 30 seconds, and then replace the battery in its socket. This will reset the CMOS. Replace the computer cover to complete the process.
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Nov 14, 2009 | ASUS P5RD1-V Motherboard

1 Answer

I have a dell C521 tower,switch it on but light stays on orange,fans work but it wont switch on.help.


Hi,
if the light remains Orange, Possible In Standby/Sleep/Hibernate Mode.
Try pressing And Holding The power Button For 4-5 seconds Or more.
If this Fails, remove the power Cable, remove side-panel ( Unless Warranted ) locate the silver cmos battery, on the motherboard. remove the battery for 10 seconds, replace and repower and startup. failing this i,d suspect the ram/memory or cpu.

Mike @ Compurepair.

Oct 29, 2009 | Dell Dimension C521 PC Desktop

2 Answers

What does the bttery control? Can I remove it for 5 seconds,then replace it and solve the ITHR checkpoint problem ?


if you are referring to the round battery on the motherboard, it controls the cmos settings remove this and your PC will not boot. yet clearing your cmos may help. look for the lil jumpers usually located near that battery and change them to reset, power on let boot then power down. then place them in the original slot.

Aug 10, 2009 | Dell Dimension 3100 PC Desktop

2 Answers

Bios password set


remove battery, boot to system settings, re-insert battery, CMOS PW should now be cleared

Jun 11, 2009 | Dell Precision 380 P4 Dual Core 3 GHz...

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