Sony Vaio PCV-RX550 Bios? \ VOGONS

Sony Vaio PCV-RX550 Bios?

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First post, by Downer

Posted on 2022-03-23, 19:19

Downer Offline

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Joined: 2020-11-18, 23:42

Howdy,

I recently acquired a Sony Vaio PCV-RX550 and was looking to upgrade the bios. It seems to still be on the first bios. I was wondering if anyone may have the official bios from Sony so I might be able to upgrade it. The motherboard is a Asus P4B-LX which asus has bios listed on their website but i havent been able to get them to work. Any information would be appreciated.

https://www.elhvb.com/mboards/oem/sony/pcv3.html This site suggests that it went to 1004 but the Asus site says 1008.

Reply 1 of 3, by Horun

Posted on 2022-03-23, 22:37

Horun Offline

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OEM bios are different than retail for same board and the numbering usually will be different..the thing to compare is the release dates. The Sony 1004 could be the same as the Asus 1008...
WIll look around and see what pops up.

added: found Sony PCV-RX550 bios 1005 and compared to Asus 1005 and 1006 and they do not match even slightly....
The internal date string of Sony 1005 is 06/20/2002-I845 -P4B-LX
The internal date strings for Asus P4B-LX is Asus 1006: Award.06/18/2002-I845 -P4B-LX. 1005: Award.01/24/2002-I845 -P4B-LX
so as I said version numbers are different AND you cannot flash a OEM board with retail BIOS without an external programmer and it still may not work...

Here is Sony BIOS 1005 for your board: https://rebyte.me/en/sony/5553/?fileTypeId=4
It will not flash update IF it does not see the proper board....

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 2 of 3, by Downer

Posted on 2022-03-24, 14:20

Downer Offline

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Joined: 2020-11-18, 23:42

Wow Thank you. It updated. It didnt solve the issue I was having (the cpu fan runs at full speed in windows 98 but not windows xp) but very cool none the less. Thank you for the link.

Reply 3 of 3, by Horun

Posted on 2022-03-25, 00:03

Horun Offline

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Good that it flashed. That was that latest BIOS I could find but will dig a bit deeper when I have time, maybe there is a beta like Asus 1008 (it is a beta bios) that Sony did but kept it hidden somewhere...

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

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