I've actually heard some bad things about Bios Agent, but I've never used it, so I can't be sure.
It sounds like your system setup will work. If you do decide to go through with the update, please post your results and your system specs. I think it seems more credible if more than just one person had good results.
Okay, oh my God, the BIOS update 8.18 actually worked on my PC. Here is proof:
Okay, HP. Here is proof that 8.18 BIOS works on Windows 7 model PC's (my model specifically: P7-1233w as shown above). So why isn't it available to download?
Edit: I will try my EVGA GTX 750 tomorrow to see if it works now.
I wouldn't worry about the 300w PSU. PC Perspective did an article seeing how upgradeable OEM PC's are, and a GTX 750 Ti could run on a PSU as little as 250w: http://www.pcper.com/reviews/Graphics-Cards/Upgrade-Story-Can-GTX-750-Ti-Convert-OEMs-PCs-Gaming-PCs
Edit: I will be testing my graphics card out a little later today.
Thanks for updating everyone! I personally think it's rude when people find a solution to a problem on a forum, and never tell whether the problem was resolved or not.
I'm glad my experiences were helpful to some people. HP definitely needs to include this BIOS update on the driver support page for PCs with this motherboard.
I agree, this BIOS update needs to be added. They are limiting the upgradability of their PC's by limiting the updates on a per-model basis.
I think a mod removed my images above. They were only screen caps of PC Wizard 2013 showing that I was in fact running the 8.18 BIOS on my HP PC model with Windows 7.
But yeah, everything is working flawlessly.
I wonder if the other bios update (80.46) would work on our MS-7778 motherboards.
After looking up which computers use that update, pavilion 500-046 is one example, it has the same looking green MS-7778 ver 1.0 motherboard I have but its called the JasmineR. That model runs Richland cpus/apus and i wonder if the only difference is the bios and that bios that have 8.xx run only Trinity apus and bios with 80.xx runs Trinity and Richland.
Well... comparing the two boards on the HP site, they are nearly identical. The chipset is the same, the bus speed is the same, the layout is identical.
But even I'm not crazy enough to try an update to the 80.46 version. Well... at least not yet anyway. After extracting the 80.46 version, I don't find any documentation. And included is a .cva file, not the .rom file like the 8.18 update.
Actually, a BIOS like this would be exactly what I'm looking for, so I can update to the Richland CPU, but I don't think it'll be compatible. Like I said, I really am a noob when it comes to these things, so I'm not sure.