Question about Dell Dimension 8400 PC Desktop

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No boot,loud fan

Same issues (no boot, loud fan and amber power).
Did you find any solution?

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I am very new to this, just started about ten weeks ago. so I also need help. I found an old 8400 that someone had dumped , so I started playing around with it . After a few minutes it came on No boot loud fan . I dont know what to do can someone please help . no solution just yet , very green to this . thanking you for letting me join in jawahirp3

Posted on Nov 18, 2008

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1 Answer

Will dried thermal paste make the fan run loud on a dell 4700?... when i power on, fan makes loud noise, black screen and wont boot and the power light led is amber (no blinking).. i changed the fan, tried...


You may try to remove the fan, clean it up. Also try to remove the processor heat sink (clean the thermal paste), reseat the processor, put a little thermal paste, that assemble it back. Before you do this, ground your self first(the easier way, hold any metal).


If this can't help,check the capacitor at your MoBo and if you found any unusual look like, it mean you need a new MoBo.

Jun 08, 2012 | PC Desktops

1 Answer

Dell opitiplex 280 is not giving display. first of all his fan speed to much high and then after 4 or 5 day its display disappeared. its just picking now power and fan also start with high noise and...


OK, I use GX280s as home servers and ran into a similar problem with one of them...

The problem may be serious and not worth fixing (motherboard).

Turn power on
Fan(s) come on full power, sounds like a jet engine, or eventually gets that loud.

See if you power light has gone amber.

You get nothing on the screen, no Dell splash screen/post, nothing.

This is what I posted a while back concerning the above. Obviously I cannot bee 100% certain as I do not have your box in front of me. This a known issue.

--------

See if the power light goes amber after power up. I had (have - still siting in my basement) one that did same. Power up, fans go full blast . Power light goes and stays amber. This is USUALLY caused by bad capacitors on the mother board. Known GX280 problem going back. If you look on the motherboard, the capacitors should have flat tops and not leaking. If the are rounded or leaking, the MB has probably gone bad. Bottom line this is usually a defective motherboard. Mine was a bad caps issue, you issue could be different, but it does sound like the motherboard.

You can google "gx280 solid amber light loud fan" and see the issues. Here is one link.

http://community.spiceworks.com/topic/111476-gx280-solid-amber-light-and-loud-fan

I just replaced one of my old 280s with a dual core Dell Precision 390 workstation for about $118, and that included shipping, off of ebay.

Sep 25, 2011 | Dell OptiPlex GX280 PC Desktop

1 Answer

Help me i have gx280 tower type 3.0 ghz 20 machines i bought these machines from used markete few machines are trouble in cpu fan abnormal noising i removed al types of hardware components but...


See if the power light goes amber after power up. I had (have - still siting in my basement) one that did same. Power up, fans go full blast . Power light goes and stays amber. This is USUALLY caused by bad capacitors on the mother board. Known GX280 problem going back. If you look on the motherboard, the capacitors should have flat tops and not leaking. If the are rounded or leaking, the MB has probably gone bad.

I obviously can not be 100% sure about this as the unit is not here.

You can google "gx280 solid amber light loud fan" and see the issues. Here is one such link.

http://en.community.dell.com/support-forums/desktop/f/3514/p/19253544/19414291.aspx

Aug 06, 2011 | Dell OptiPlex GX280 PC Desktop

2 Answers

We have around 30 units of DELL Optiplex GX280 having mother board failure. It was more then 3 years old already. Once the turbo fan become noisy then it will gone dead.


May be serious. See if the power light goes amber after power up. I had (have - still siting in my basement) one that did same. Power up, fans sound like 747 taking off. Power light goes and stays amber. This is USUALLY caused by bad capacitors on the mother board. Known GX280 problem going back. If you look on the motherboard, the capacitors should have flat tops and not leaking. If the are rounded or leaking, the MB has probably gone bad.

I obviously can not be 100% sure about this as the unit is not here.

You can google "gx280 solid amber light loud fan" and see the issues. Here is one such link.

http://en.community.dell.com/support-forums/desktop/f/3514/p/19253544/19414291.aspx

Feb 16, 2011 | Dell OptiPlex 330 Desktop Desktop Computer...

1 Answer

Optiplex GX280 - loud fan at start up and amber power light - does not boot


Hi,
Most likely you have a bad Power Supply, replace your power supply
Thanks

DiegoTech

Nov 14, 2010 | Dell OptiPlex GX280 PC Desktop

3 Answers

Optiplex GX280 - loud fan at start up and amber power light - does not boot and no light at the back


Apply pressure on the heat sink fan right before you press the power button and continue applying pressure. Watch your screen if you see it boot this means its a problem with your processor clamp that applies pressure to the processor. Try to remove the top part of the clamp. Shouldn't be too hard with some needle nose pliers. Then just replace the heat sink and fan with out that clamp.  

May 27, 2010 | Dell OptiPlex GX280 PC Desktop

1 Answer

Amber light solid. Replaced the power supply ad the cmos battery. removed the memory and reconnected. Plugged back in and I hear the fan running kind of loud (louder than before) Still solid amber light


most times i have seen amber light, if it is where the pwr light is on front of tower means ur mother board might be fried. check capacitors one by one and make sure none are extended or leaking. dell has had this issue before when they sent out a bad batch of capacitors. may last it job was mostly issues with this. good luck.

Dec 11, 2009 | Dell OptiPlex GX520 PC Desktop

2 Answers

Can't boot up Dell 5100 Dimension, amber light flashes


When you mean the amber light, is that the blinking hard drive access light or the power light? Different cases have different colors on it. Mine has blue and green lights.

If you see the boot screen (bios) and then after it goes to boot, does it blink and hang?

This could be a simple operating system issue, hard drive or hardware/motherboard issue. If you could provide more information, that would help.

Jun 28, 2009 | Dell Dimension 5100 (D51L1) PC Desktop

13 Answers

Dimension 8400 will not boot, very loud fan.


I have a small business where I have worked on PCs for the past 14 years. I have had some of my clients that have brought me a few of these Dell 8400 to work on with the same problem. Will not boot and loop the start up, along with sounding like a leaf blower. After much trial and error i.e. Heat sink,cooling fan, power supply and motherboards. The first one I worked with by changing the heat sink, worked for about a week, then started doing the same thing. Replaced the Power supply with no results, same issue. Next was the Motherboard, still same issue. Last I pulled the processor out and found that the processor had over-heated and was damaged. In all I had well over $500.00 dollars invested and countless hours. Still the machine did not work, and still needed more work. Since this time I have had a few more of these machines cross my path. My suggestion is to scrap it and purchase a new PC. This is not one of Dell's better designs, and there is a tech issue from Dell related to this problem with the heatsink and the machine itself in the tech support on the Dell site. It states that they had a bad batch of heatsinks, but only replaced them under warranty.
Salvage what you can and build or have someone build you a clone.

Apr 04, 2008 | Dell Dimension 8400 PC Desktop

3 Answers

Black screen on start up


yep

unplug the system
open the case
look for a battery and take it out
take out the memory (rams)
wait ten minutes
press power button 5 times
put everything back in

and boot it

Jan 12, 2008 | Dell OptiPlex GX270 PC Desktop

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