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on automatic on mode when pugged at the wall outlet, continuous on mode, can't be put off
Problem for Dell Optiplex GX280 (99301) Motherboard
Black screen.High noise from cpu.fan
Hi.Same problem.GX280small form factor.Power on black screen.The heat sink fan sounds like a jet on takeoff.Push button on monitor and it gives"Power save mode,press any key or move mouse" but the usb ports seem dead.Power light just constant orange.Caps. look okay but no expert.Any solution would be most welcome..Thankyou..addboat
Best Solution
posted on Oct 08, 2009
You have bad caps on the mobo. Dell had a recall on the mobo's until 1/08 for just this reason. See Dell forum:
http://en.community.dell.com/forums/t/19253544.aspx
for more info.
http://en.community.dell.com/forums/t/19253544.aspx
for more info.
Yes
No
Asker's Testimonial
"
Thanking all for help.Company replaced faulty computer,,Thanks again ...addboat
" - addboat
Solution #2
posted on Sep 23, 2009
Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the onboard)
If you hear any beeps these can indictate where the fault is.
either of these sites below will help you further with that
Beep codes Pc
More beep codes
Power up the pc and see if the fans are working.
If not then double check the power connections to the board.
If you still have no fans it is time to suspect the power supply as the probable cause.
If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.
Now connect one drive only and boot again.
Repeat that until you identify the component that is giving you a problem.
Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem
If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it
I would suggest getting a can of compressed air made for computers
take it outside, take of the side and blow all the gunk out of there, Really go to town around the fan (you might want to wear eye protection)
While you are in there just check that the CPU cooler itself is not loose
If it is it will have to be re-seated.
If it needs re-seating don't just take it off and put it back on as that might make things worse with your temperature problem the have to be cleaned and new thermal grease put on
I think this may be your problem before you buy a new CPU make sure you check the cooler assembly and make sure you use new thermal grease ($2-5)
DON'T remove the CPU just the fan/cooler assembly.
You must clean both the surfaces without scraping anything off. Use isopropynol alcohol and cotton bud sticks until both surfaces are clean, you can use your finger nail to scrape harder residue if you wish but nothing else.
DON'T pour the alcohol over the CPU
Now apply some new thermal grease (most computer shops have it)
Be careful about how much you put on
Here are some basic instructions
Once you have re-assembled your cooler and re-connected it check everything is OK and power up the computer.
If everything went to plan you should now be back in business
Remove any extra cards including video etc.(plug monitor into the onboard)
If you hear any beeps these can indictate where the fault is.
either of these sites below will help you further with that
Beep codes Pc
More beep codes
Power up the pc and see if the fans are working.
If not then double check the power connections to the board.
If you still have no fans it is time to suspect the power supply as the probable cause.
If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.
Now connect one drive only and boot again.
Repeat that until you identify the component that is giving you a problem.
Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem
If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it
Comments:
Sep 23, 2009
- Your fan speeds up and slows down in response to temperature inside the computer. More so the CPU.I would suggest getting a can of compressed air made for computers
take it outside, take of the side and blow all the gunk out of there, Really go to town around the fan (you might want to wear eye protection)
While you are in there just check that the CPU cooler itself is not loose
If it is it will have to be re-seated.
If it needs re-seating don't just take it off and put it back on as that might make things worse with your temperature problem the have to be cleaned and new thermal grease put on
I think this may be your problem before you buy a new CPU make sure you check the cooler assembly and make sure you use new thermal grease ($2-5)
DON'T remove the CPU just the fan/cooler assembly.
You must clean both the surfaces without scraping anything off. Use isopropynol alcohol and cotton bud sticks until both surfaces are clean, you can use your finger nail to scrape harder residue if you wish but nothing else.
DON'T pour the alcohol over the CPU
Now apply some new thermal grease (most computer shops have it)
Be careful about how much you put on
Here are some basic instructions
Once you have re-assembled your cooler and re-connected it check everything is OK and power up the computer.
If everything went to plan you should now be back in business
Yes
No
Asker's Testimonial
"
Thankyou very much for all your help.Company replacing unit,so happy days.Thanks again...
" - addboat
Solution #3
posted on Sep 23, 2009
You'll have to reseat cards inside the tower to determine what's going on. If you're not comfortable doing that the it's better if you consult a local computer tech.
Yes
No
Asker's Testimonial
"
Thankyou very much for your prompt reply.Which other tec.sites were as quick of the mark..
" - addboat
Solution #4
posted on Oct 18, 2009
Addboat,
I have wasted enough time in Dell community for exactly the same problem. Even a link mentioned by Move_n_man above, on 8 Oct. 09 refers to my posting in Dell community. Its nothing but a crashed bios and unfortunately theres none who could tell how to flush the bios and reload fresh bios in the bios chip when computer does not boot.
Dell is in no mood to help! So do the so called experts of the Dell community.
Sqn. Ldr. Raman K Jhanjee (Retd)
I have wasted enough time in Dell community for exactly the same problem. Even a link mentioned by Move_n_man above, on 8 Oct. 09 refers to my posting in Dell community. Its nothing but a crashed bios and unfortunately theres none who could tell how to flush the bios and reload fresh bios in the bios chip when computer does not boot.
Dell is in no mood to help! So do the so called experts of the Dell community.
Sqn. Ldr. Raman K Jhanjee (Retd)
Yes
No
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