hp pavilion

I am trying to upgrade my o/s to XP from 98se on my hp pavilion 6646c. Is it possible to do this on this system or do I need to update the bios or some other thing?
justin7122Asked:
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KenneniahConnect With a Mentor Commented:
If you can't update your hardware, install Windows XP with the non-ACPI HAL.
http://support.microsoft.com/default.aspx?scid=kb;en-us;299340&Product=winxp

You would want to choose Standard PC
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sirbountyCommented:
You might check this: http://www.michaelstevenstech.com/xpupgdissues.html for upgrade issues.
I don't think you'll have a problem though.
Also check this: http://support.microsoft.com/?kbid=316639
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justin7122Author Commented:
I'm getting a error message saying that it cannot complete the setup due to my hardware being none ACPI compliant. I don't think there are any BIOS updates for this computer, is there a way around this problem?
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justin7122Author Commented:
Thanks a lot, that took care of it, now all I need to do is fix a couple driver problems, no big deal.
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KenneniahCommented:
Glad it worked out for you!
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kctobyjoeCommented:
I just finished working on a Pavilion. Model XE783, which has a crippled version of the ASUS MEW-AM motherboard in it. HP has their BIOS flashed to handle all the different procesors etc. If you upgrade to the newest BIOS, it wont allow any tweaking changes. It senses processsor type, etc by itself.  I put in a Tualatin Celeron 1.1 Ghz processor after taking out the titrd 700 Mhz version. Had to use the readily avail FC-PGA2 Tualatin converter for FC-PGA processors. Usually $11-$25 (check pricewatch)
XP PRO was placed on a fresh format of the hard drive, with NO problems.
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