Dell Motherboard ID

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Dell Motherboard ID

Postby gwhamilton » Wed Aug 11, 2010 11:53 am

I have a friends computer (Dell E521) that has a dead MB. The Dell part number on the board is CN-OCT103-70821-6A5-E1PZ. I called Dell and also checked their web site and they told me that UW457 is the correct replacement. When searching the web I found MB's that are "compatible" The model numbers are OCT103, HK980 and UW457. I want to just drop in a replacement and not reinstall her OS. Does anyone know it these boards use the same chipset? If it was my computer I would just upgrade but she has data that she wants to keep that is not backed up. Thanks for the help.
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Postby evasive » Wed Aug 11, 2010 12:15 pm

Either E521 or UW457 should be mentioned. I see the other terms mentioned as well but these two are the officially known part numbers to indicate this board.
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Postby gwhamilton » Wed Aug 11, 2010 2:26 pm

The boards I find online all say they are for the E521, they have one of the three part numbers (OCT103, HK980 and UW457) It's hard to find a UW457, I see a lot of OCT103 and HK980. Do you think the three boards would have the same chipset? If so, I'll just buy the best deal.
Thanks.
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Postby Hardware Junkie » Wed Aug 11, 2010 4:24 pm

Your best bet honestly is to remove the heatsink and figure out what kind of processor and ram the system was using. You can then look for a replacement motherboard and rebuild the system. I recommend replacing the power supply cause its likely non standard. Hopefully it uses the same dimensions as a regular power supply so you can install a new one.
Wire it up and you should be able to install a fresh copy of windows with the included motherboard CD.

Otherwise this is your best bet:

http://shop.ebay.com/?_from=R40&_nkw=De ... otherboard
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Postby Hardware Junkie » Wed Aug 11, 2010 4:27 pm

Narly looking mobo

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Postby fussnfeathers » Wed Aug 11, 2010 6:29 pm

Hardware Junkie wrote:Narly looking mobo



BTX formfactor. There's a few different aftermarket Intel boards floating around, but he's going to be pretty much locked into the exact same motherboard.
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Postby evasive » Wed Aug 11, 2010 8:47 pm

Oh I forgot to mention that. The Dimension E5xx series seems to be entirely BTX, the only aftermarket you will find is Intel LGA775 boards, absolutely nothing in AM2/AM3 except the OEM boards themself.

BTX was born dead I guess...
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Postby gwhamilton » Wed Aug 11, 2010 9:04 pm

So can I assume that any of the 3 boards available for the E521 will be a drop in without re-installing the OS?

She didn't heed my proir advice to back up her doc's and pictures.

She may dodge the bullet next time, she learned a lesson and went out and got an external HDD for backup.
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Postby evasive » Wed Aug 11, 2010 9:52 pm

Most likely, yes. But please refer here first and post a link to the board you want to buy so we can make sure.
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Postby fussnfeathers » Thu Aug 12, 2010 2:44 am

Have her pick up a second new HDD (the original is pretty old), doesn't have to be big since she's got an external. You can plug the old HDD in as a slave, that should allow you to pull her docs and stuff off the old drive. Then put that old drive away somewhere as a good emergency backup in case she needs it.
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