According to the following link, the d530 small form factor HP has the same motherboard:
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Here's HP's latest bios offered for that system, from August 2008:
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Thank you for that, I'm on my lunch break and just had time to update it but I have to head back to work now. Not ignoring the other responses but I figured I'd give a quick update.
The update acknowledged the previous version was outdated and seemed to perform the upgrade absolutely fine. Sadly once it had rebooted it was exactly the same as it was.
I think I'm going to try reinstalling Windows 7 tonight to see if that offers any improvement, I have barely anything installed so not really got much to lose!