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Dell OptiPlex 755 - Dell doesn't recognise my Service Tag?
Hello Dell Community,
I've been looking at potential upgrades for my Dell OptiPlex 755 MT but here's the problem. I can't get a list of drivers that my PC can support. Every time I enter my Service Tag anywhere on Dell's website, it doesn't recognise it. I don't understand it, this is a 16-year-old Desktop, and you can find support for this model, why can't I add it to my Dell Account and get support for my specific unit. I even tried the "wmic bios get serialnumber" command in the Command Prompt and the Service Tag is the same that on the sticker on my PC. Could someone please help me figure this out? Thank you.
redxps630
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July 13th, 2024 17:02
yes some service tag record got lost in Dell database. This is expected with some old model.
ejn63
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July 7th, 2024 16:22
The only support for anything this old is limited to downloads and documentation -- see below.
https://www.dell.com/support/home/en-us/product-support/product/optiplex-755/docs
redxps630
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July 7th, 2024 16:39
I have seen occasionally genuine old Dell desktop s.t. is not recognized on Dell website. That is a normal though disappointing phenomenon.
You actually do not need Dell service tag to find drivers for your 755 MT. This model is released prior to Win 10. The only drivers available for download are for XP and Vsita. If you are running Win 10, Microsoft automatically downloads all appropriate drivers for this pc and you do not need to install any driver manually. I had installed Win 10 on 755 multiple units without any issue running all the hardware such as video, audio, Ethernet, dvd drive, hdd etc.
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MasterTechnology507
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July 7th, 2024 16:49
@redxps630 I have Windows XP currently on my OptiPlex 755 MT. I just would like to find out if my PC will support an AMD or ATI Discrete Graphics Card and also would just like to get a personalised list of drivers + software for my particular unit.
MasterTechnology507
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July 7th, 2024 16:50
Thank you for letting me know @ejn63 and providing the link to downloads and documentation.
redxps630
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July 7th, 2024 16:54
I have found out if you have a newer Dell gpu for Optiplex 7010/790 etc., as long as it has Dell driver for XP, you can still install on older Dell such as 755
Official 755 Dell
XP video drivers:
https://www.dell.com/support/home/en-us/product-support/product/optiplex-755/drivers
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=h2v4y&oscode=ww1&productcode=optiplex-755
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=jpxty&oscode=ww1&productcode=optiplex-755
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=vvvmh&oscode=ww1&productcode=optiplex-755
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=dh9d2&oscode=ww1&productcode=optiplex-755
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MasterTechnology507
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July 7th, 2024 18:03
@redxps630 Thank you for providing me with a list of supported GPUs for my OptiPlex 755 MT Desktop. Any chance these GPUs will support Vista as well?
redxps630
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July 7th, 2024 21:15
There are different drivers for vista 32 vs vista 64. What is the DP/N of the gpu currently in your 755. Which vista are you installing?
assuming vista 64
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=r197446&oscode=wv64&productcode=optiplex-755
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=r6xtk&oscode=wv64&productcode=optiplex-755
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=7crd1&oscode=wv64&productcode=optiplex-755
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=cpk61&oscode=wv64&productcode=optiplex-755
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MasterTechnology507
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July 8th, 2024 16:24
@redxps630 I don't have a discrete GPU in my OptiPlex 755 MT yet. I'm still using Intel's GMA Graphics. I just wanted to know what my Discrete GPU Options are that will work on XP and Vista? But thank you for the links to Vista Graphics Drivers and yes I would like to try and install Vista 64-bit but I'm yet to buy an installation disc before I do anything.
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redxps630
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July 8th, 2024 16:39
Vista 64 disc image should be available for download in public domain or you can buy genuine Dell installation disc on eBay
I would install the latest Dell gpu c/w XP or Vista for 7010 or 790 which are backward c/w 755. The original ATI and HD2400 are too old (starting from Opti 7020 Dell stopped supporting XP or Vista driver)
for example
vista 64 HD6450
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=hmnxk&oscode=wv64&productcode=optiplex-790
XP HD7470
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=38ymt&oscode=ww1&productcode=optiplex-7010
MasterTechnology507
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July 8th, 2024 17:45
@redxps630 Excellent, thank you very much for your help. Are the Dell Installation Discs tied to a specific system and have the product key on the contents of that disc or can it be used for any Dell System?
redxps630
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July 8th, 2024 21:12
any Dell pc. I have a bunch of these dvd someone gave to me during downsize. I used them to install on my old Dell E310/510 without issue
PS
when I used a Dell XP dvd on a non-Dell old pc, it asked to activate within 30 days though. I used the telephone method which worked.
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MasterTechnology507
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July 13th, 2024 15:32
@redxps630 Well that's good to know. Thank you for your help on this forum. But speaking of the original question I asked. Why doesn't Dell recognise my OptiPlex 755 MT's Service Tag but it recognises my other Dell PCs? Is it due to age?
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