Question about Acer Aspire T690 (AST690UP820A) PC Desktop

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Acer Aspire T690 startup problem

Here is what it is doing> When you plug it in and hook it up and press the power button... you can hear the fan kick on nothing happens on the monitor and the unit starts a long loud solid beep after a few seconds. The only way to stop the beep is to unplug or hold the power button til the unit shuts off. I just acquired this computer and I have no idea what could be wrong with it. Please help if you can. Thanks a ton!

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Re: Acer Aspire T690 startup problem

MEMORY PROBLEMS Hi, FOR LONG BEEPS, ONE SHORT BEEP IN AN ENDLESS LOOP, BLUE SCREEN OF DEATH AT STARTUP Try using Memtest 86+ to diagnose your memory problem. You can also try the following methods. Turn off power, Unplug. Remove the cover of your PC. Remove the memory from the Motherboard. Note on the locks! Clean the memory contacts with an eraser yes that's right a rubber Pencil eraser. It should be shiny gold. Reseat your memory to the motherboard and Test! ====================== If you are having trouble with Newly bought items save your self from headaches by returning them and demand a replacement or a refund! You may have purchased a reconditioned\repaired\factory defect product.

Posted on Sep 19, 2007

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Changing acer t690 processor

Yes, you can change the CPU, but your Motherboard will only support certain processors, Take a look at this Acer Support, you will see the compatible CPU's: Remember : Your machine's component work with one another, within parameters, one component,CPU, will not give you the improvement you might think. CPU, Memory, Graphics Card, Etc.,Upgrades, require more Power/Watts, therefore a new PSU. Which create more heat, new fan. One relies on the other. Do your research, their's a lot more to it than replacing one component. Do a comparison, what will all the components cost, to a new System? The prices for new Good Systems , are low due to slow sales of Desktops/Laptops.

Feb 05, 2013 | Acer Aspire T690 (AST690UP820A) PC...

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My computer is acer aspire acer you think it is harddrive

it looks like sata

Aspire T690 Specifications

Part Number: AspireT690 Aspire T690
Storage CD-ROM, CD-RW, DVD-ROM, DVD/CD-RW Combo, DVD Dual, or DVD Supermulti (varies by model)
Up to 400GB Hard Disk Drive SATA (varies by model)
9 in 1 Card Reader (selected models)

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1 Answer

Acer x3400 wont start up

Remove the Power Cord and then press and hold the power button for 30 seconds. After 30 seconds plug the power cord back in and press the power button. If it reboots you had a Static Charge Buildup and released it by holding the power button for 30 seconds.

When you press the power button do you hear the fan running, disk drives running, cd drive clicks once, anything on the lcd screen? If not I would think your Power Supply is bad and needs to be replaced.

It's either the Power Supply or Motherboard.

Mar 23, 2012 | Acer Aspire X3400 PC Desktop

2 Answers

My acer t690 is shuting down for no reason i think hard drive is going when i buy new 1 can i install and use vista straight away as my pc wont let me burn a copy of the factory default disk wat do i...

Sounds like a thermal problem. If the PC shuts down unexpectedly, I would make sure the CPU cooling system is clean of dust especially the fan.

Does not sound like a hard drive problem.


Feb 21, 2011 | Acer Aspire T690 (AST690UP820A) PC...

1 Answer

Acer Aspire t690 Desktop Freezes or reboots with in minutes of start up...Running Windows Vista. Help???

It is possible that your computer is overheating and is shutting down to prevent it from doing any harm to itself.
Make sure that all fans are clean, there must be no dust present as it hinders airflow!!!
Install as many fans as possible. Computer temps should be in the region of 30-40 degrees centigrade. To avoid CPU throttling, where the CPU slows down to prevent frying itself.
Please take the time to rate my expertise.

Nov 01, 2010 | Acer Aspire T690 (AST690UP820A) PC...

1 Answer

How do you remove the cover of my acer aspire T690 in order to remove the dust from the inside

un screw the nails or open the lock if you have one or press the side buttons and lift

Oct 03, 2009 | Acer Aspire T690 (AST690UP820A) PC...

3 Answers

Y acer aspire pc desktop is showing full battery, the fan is goin

u have to press and hold the power button for fifteen seconds to shut off, and it seems to me that your video card may be loose or bad or your memory may be loose or bad.

Sep 01, 2009 | Acer Aspire T690 (AST690UP820A) PC...

1 Answer

Desktop will not turn on

Can you hear if the HDD are running, or powering up (most hdds have a sound like a tourbo charger kicking as on a big rig when they are trying to pass you on the interstate or similar sound) LOL (getting carried away with my discriptions again) But do list to see if you hear them powering up. Please post back

Apr 03, 2009 | Acer Aspire T690 (AST690UP820A) PC...

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