Support I have dell optiplex GX280 series(4 in number).They were working well for about a year.what happens now is that,whenever I am switching on the pc it goes on well up to the Bios setup.But by the time it tries to load the os(win xp) from the hard disk to the RAM,there is a big noise heared and everything crashes there. I have tried many options such as changing the hard disk,the fan and heat sink,the processor,and even the power supply,but these don't help me much.Only using the PATA and win 98 was a solution I'm able to get,but I need to use win xp and the SATA. thanks in advance for your help.

With the flood of information you posted I can barely sift through it

Do I assume you are referring to a Dell Inspiron 518 desktop computer's, processor; to go into a Dell Optiplex GX280 desktop computer?

You know Dell is a computer company that was founded on the principle, to give the customer what they wanted; and to be able to choose from several options.

That being stated, in reality I have no idea of what Processor is in YOUR Dell Inspiron 518, or Optiplex GX280.

However, if I am to assume the specs (Specifications), shown in the following link to be true; for Your computer, then the answer is NO,

http://reviews.cnet.com/desktops/dell-inspiron-518/4505-3118_7-33186145.html

States an Intel Quad Core Q6600 processor.
(Operates at a maximum frequency rate {'Speed'} of 2.4GigaHertz.
2.4GHz )

Now let's look at the Dell Optiplex GX280 specifications,

http://reviews.cnet.com/desktops/dell-optiplex-gx280/4507-3118_7-30998912.html

Both the Inspiron 518, and the Optiplex GX280 use an LGA 775 processor socket, on the motherboard.

This is good because both the Intel Quad Core Q6600, and the Intel Pentium 4, model 540; use the LGA 775 processor socket,

http://en.wikipedia.org/wiki/Socket_T

What is Not good, is the motherboard chipset used on the Optiplex GX280, will Not support a dual core processor; much less a quad core processor.

The motherboard chipset for the Optiplex GX280 is an Intel 915G,

http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Pentium_4.2FPentium_D.2FPentium_EE_chipsets

The Intel 915G chipset supports Single Core processors -> ONLY.
Intel Pentium 4, or Intel Celeron D.

Front Side Bus (FSB) support is either 533MegaHertz, or 800MHz.

The Intel Celeron D is NOT a dual core processor,

http://en.wikipedia.org/wiki/Intel_Celeron#Prescott-256

"The Intel Celeron D processor works with the Intel 845 and 865 chipset families.

The D suffix actually has no official designation, and does not indicate that these models are dual-core.

It is used simply to distinguish this line of Celeron from the previous, lower performing Northwood and Willamette series, and also from the mobile series, the Celeron M (which also uses 3xx model numbers).
Unlike the Pentium D the Celeron D is NOT a dual core processor."

The Inspiron 518 has an Intel G33 motherboard chipset,

http://reviews.cnet.com/desktops/dell-inspiron-518/4507-3118_7-33186145.html

http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Core_2_chipsets

Scroll down to G33 in the left column.
Read across, and look at the headings above.

Here we see the Intel G33 motherboard chipset, supports dual core, and quad core processors.
Intel Pentium Dual Core, Intel Core 2 Duo, and Intel Core 2 Quad.

Front Side Bus (FSB) support is for processors, that have either an 800MegaHertz FSB, or 1066MHz FSB, or 1333MHz FSB.

Short answer?

If it is a dual core, or quad core Intel processor, the answer is NO.

Do you know how to find out what processor is in the Inspiron 518, and the Optiplex GX280?

1) Are the computers working, and internet ready?

No?

2) Do you know about Anti-Static Procedures, and how to read the sSpec number on the processor?

Post back in a Comment.

Regards,
joecoolvette

Dell Dimension 8250 Drivers
Visit the above link from Dell Official Support. Click Audio, download the files and install.

CreativeTECH

Listed below are a few places where you can buy a refurbished Dell Optiplex GX280, part number M9475;
http://www.google.com/products?hl=en&q=Buy+refurbished+Dell+Optiplex+GX280+M9475&um=1&ie=UTF-8&ei=HPQ1TIGfEMH-8Abz5IT0Aw&sa=X&oi=product_result_group&ct=title&resnum=3&ved=0CD0QrQQwAg

https://www.serversupply.com/products/part_search/pid_lookup.asp?pid=117738

Cheers'
Mike

The fan(which runs on a bearing) has aged, it must be replaced. Luckily this is an easy and cheap fix. Pick one
http://bit.ly/9qzXBz

http://members.driverguide.com/driver/detail.php?driverid=881633

http://www.bioticaindia.com/dell-optiplex-gx280.html

http://nowdownloadall.com/your-file.asp?pb=4&PID=92d75e3c-6ff7-408e-8a60-6c1abcebcf98&q=dell%20optiplex%20gx280%20display%20driver%20vista

You may have to open the system and see if there are manufacturers names and model numbers for some of the devices you are seeking drivers for. Most of this hardware has not been supported by Dell to use with Vista or Windows 7, however, if you find drivers for windows 7, it uses the same cire as Vista so they may work.

Confirm no leaking or bulging capacitors on your mothboard.
refer to here
http://en.wikipedia.org/wiki/Capacitor_plague

As this was a common problem with the GX280.
If found, you will need to replace the capacitors.

The other check is to make sure the heatsink is fitted correctly, perhaps reaply the thermal paste if you have any. I know that high temps would switch the GX280 off.

Repalce your M board

You hit that one right on the dot.  ATI website showed the specs for that graphics card you installed as needing a 300 Watt power supply.  Good news though... I researched newegg.com and I believe I found your 300W power supply.  There are 4 different Optiplex gx280 designs with 4 completely different power supplies.  Since you bought the low-profile video card, I believe you have the slim computer case and this power supply should work for you...
http://www.newegg.com/Product/Product.aspx?Item=N82E16817374002

Good Luck

download driver ''R145551.exe'' and install it for audio device to work. you can download this by typing the r145551.exe on google search for more details contact me [email protected]