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Sudden computer shutoff after booting with new memory

By reggiefor ·
Yikes --
I added new memory for someone and when I rebooted the computer, it came up fine -- maybe a little slower than I expected, but it came up. I started an application and the machine shut off completely and won't do anything now. Is it possible a power supply could go just like that (I don't hear the fan or anything when I turn on the computer) or is it more likely that I did something by adding memory that exceeded the max speed allowable?

It was a computer that someone else built -- not a standard make/model -- so it wasn't cut and dried deciding on the memory upgrade.

Motherboard is M848A v5.0. I installed 2GB DDR 333 memory.

If it was my fault (incorrect memory addition) is it likely the whole machine is fried, including the hard drive?

Please help.

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All Answers

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Simple Test

by Wizard-09 In reply to Sudden computer shutoff a ...

Remove the new memory and replace it with the old memory, reboot the machine logon and run a application. In the event this works you no its the new ram that is causing you the issue and its the wrong ram for the board maybe.


Keep us informed as to your progress if you require further assistance.

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I can't do that!

by reggiefor In reply to Simple Test

I would so love to do what you suggest.
The problem is that the computer won't even turn on!
If I overloaded the motherboard, it it possible I fried everything, even the power supply?

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OK

by Wizard-09 In reply to I can't do that!

Did you hear a bang any smoke come from the system, open up the computer again try to power it on and see what happens any lights on the motherboard and fan's on the system coming on if not replace the PSU, also do you ground yourself when replacing the RAM.

I would still replace the RAM then try to boot it just for a test.

It could will be a problem with PSU, i would try a new PSU in the computer.

Keep us informed as to your progress if you require further assistance.

If you think that any of the posts that have been made by all TR Members, have solved or contributed to solving the problem, please Mark them as Helpful so that others may benefit from the outcome.

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You will not have overloaded anything

by OH Smeg In reply to I can't do that!

By fitting RAM to the system. The worst that should happen is that it just fails to POST.

As I don't recognize that M'Board Model I'm not sure which Brand it actually is so I can not look up the Makers Recommended RAM or it's Max Size that it should take.

But as this is a White Box do you have a spare PS to test with? You don't need to fit it just plug it in and see what if anything happens. Also did you follow Static Control Procedures that is far more likely to be an issue here or if something got caught in the works with the case open & running. You have to watch out for stray metallic objects causing a short circuit.

Col

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If it is a short circuit?

by reggiefor In reply to You will not have overloa ...

Hi --
I think I grounded myself properly, but I admit I did turn the machine one without fully replacing the cover. If it's a short, would the power supply be gone, too? And is anything salvageable?

I really appreciate your help.

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As

by Wizard-09 In reply to If it is a short circuit?

AS said the data on the hard drive will be fine, so don't worry about that it might be a problem with the PSU just try the things already posted and then post back the results.

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Power Supply is the culprit! Thanks

by reggiefor In reply to As

Hi all --
I replaced the power supply and all was well.
I really hate heart-stopping coicidences -- new client, lots of projects and the easiest one blows up! Oh well. "All's well that ends well", as they say -- or at least, all's well that ends.
Thanks for all of the reassuring advice.

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a common problem is to not seat the memory module properly

by robo_dev In reply to Simple Test

or if there is dust in the memory slot.

If something actually failed, it would be the RAM itself or the motherboard. Data/drive is probably just fine.

If motherboard failed, look for burnt components near memory slots and sniff for that burnt component smell.

I've seen motherboards fry when memory modules were not properly seated.

also make sure other things like IDE cables or drive power cables were not accidentally disturbed when plugging in new RAM.

Damage from ESD (static discharge) is possible but not very common. Be sure to always touch the case/power supply before touching ram/motherboard, or wear a ESD wriststrap to be safe.

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Power supply Tester

by Snuffy09 In reply to Sudden computer shutoff a ...

If you are doing these types of jobs often I suggest you invest in a power supply tester here is a good one: http://www.newegg.com/Product/Product.aspx?Item=N82E16899705002 Its only 15$... Cheaper than guessing and replacing good parts.

With you current situation id say the power supply took a dump. Upgrading memory was a Coincidence, as you noted if it was bad/Incompatible ram you wouldnt have goten passed the BIOS test.

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