Question about Dell OptiPlex 780 DT/ 780 MT/ 780 SFF Desktops Hard Drive

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My dell optiflex system started acting slow. OS installed is windows 7, Ram - 4GB usable - 3GB. i re-installed the OS using the re-installaation CD provided by DELL but found no improvement. i woould appreciate if i receive the solution by today evening.

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Test the computer's Hard Drive. There are a lot of reasons you might want to test your hard drive for problems. One of the major reasons to perform a test would be if your hard drive is making strange noises. This can often be a sign of a failing drive, something a test can point out.


If the problem is a software issue (virus or too much software installed on the PC) running a System Recovery should have fixed the problem. Try running a test on the computer's Hard Drive. A failing Hard Drive causes slow performance (slow boot, slow computer performance, programs takes too long to load or will not laod at all). And another indicator that the Hard Drive is failing is clicking noises. If you hear clicking noises, backup your files as soon as you can.

You can use free Hard Drive diagnostic tools what can be downloaded from the internet. One of them is Seagate Seatools.You can download it from here - click this link

SeaTools for Windows can perform several basic tests that can help determine the health of your hard drive. Your available hard drives and tests are easy to see when the program opens and can be ran with just a few clicks of the mouse.

Hope this help. Goodluck!

Posted on Apr 07, 2011

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Therefore, you only have enough RAM to run window, and no spare ram that should be dedicated to the graphics and other system operations.

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you are detecting a known problem for 32 bit operating systems.
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But it also might be that you have a bad chip try and start the system with one chip at a time if it starts with both then you know there good. Please post the results. ;)

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That may be the cause of the issue
Even if any computer has more then 3gb of ram it will showup only upto 3gb.
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Thanks and Regards

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