I doubt this will be possible...
Unlike the older Durons(model 3/7 - up to 1.3GHz), the new 'Applebred' Durons(model 8, 1.4GHz and up) have a 133MHz FSB('FrontSide Bus', aka 'System Bus'
Most likely, your motherboard/chipset doesn't support a 133MHz FSB...even if it did, there is prolly no BIOS-update to add support for the relatively new model 8 Durons.
I can't say for sure, tho, as there is typically very little documentation available for brand-name computers
I recommend you contact compaq and ask them what upgrades would be possible for you(if any).
The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.
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