2 Intern
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1785
July 28th, 2020 00:00
BIOS version number on xps420
Hi,
My computer is currently showing a BIOS version of Dell Inc A07, 25/02/2009.
However, if I run the driver check i get the following. But not sure if i'm updating it properly ?
0 events found
No Events found!


speedstep
11 Legend
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47K Posts
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July 28th, 2020 05:00
This system is 13 years old. A07 is the last bios.
Its a windows VISTA Model.
http://downloads.dell.com/published/pages/xps-420.html
Dimension XPS 420 A-candidate A07 System BIOS More details
5/12/2009
http://downloads.dell.com/bios/XPS420-A07.EXE
Dimension XPS 420 A-candidate A06 System BIOS More details
7/28/2008
http://downloads.dell.com/bios/XPS420-A06.EXE
Dimension XPS 420 A04 System BIOS More details
4/8/2008
http://downloads.dell.com/bios/XPS420-A04.EXE
Dimension XPS 420 A03 System BIOS More details
1/7/2008
http://downloads.dell.com/bios/XP420A03.EXE
XPS 420 System BIOS A02 More details
11/14/2007
http://downloads.dell.com/bios/XP420A02.EXE
XPS 420 System BIOS A01 More details
10/24/2007
http://downloads.dell.com/bios/XP420A01.EXE
fireberd
11 Legend
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112.8K Points
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July 28th, 2020 03:00
I've seen different dates on the same BIOS (or other drivers) . If you have the latest from Dell installed, e.g. A07, then you are OK.
According to the BIOS list the only item listed is an audio update.
Vic384
6 Operator
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3.2K Posts
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July 28th, 2020 05:00
@Deeks1 If you click on 'View full driver details' you will see that the Release Date was 12 May 2009 which is close to the date of your BIOS. Typically the Release Date is several weeks/months after the BIOS date, but the dates are close.
Deeks1
2 Intern
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47 Posts
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July 28th, 2020 06:00
Thanks everyone for the assistance. Cheers.