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AW9D diy final bios or How to improve your C0 and E0 stepping compatibility

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Hi guys and girls,

Well one of my d975xbx2 has bit the dust cos I did something really stupid to it. That south bridge heat sink was really tough to remove.... whoops.

Anyway I got a AW9D (non max) to replace the d975xbx2 I use only for WCG Computing for Clean Energy Phase 2.

Now here comes the sticky bit. The Bios....:-(

-bios link
Link to the very last bios for the Aw9d http://www.mediafire.com/download/su10ug...w9d_18.zip PhoenixAward bios

-whats happens: I.e. It doesn't boot / it shows an error (which? post a picture)
I've had windows 8 up and running on the AW9D with a E5405 (xeon) 771 to 775 mod with bios 17. In device manager it shows " 4 CPUs " but every other program shows and uses only" 2 CPUs " on bios 17. Boinc only saw and used "2 CPUs " even though there were " 4 CPUs " in device manager. Upgraded to bios 18 and can't load windows any more. Pentium D 945 still works perfectly fine on bios 18 though but it's a truly awful CPU for crunching CEP2 work units on.

So currently trapped in a boot install/ recovery error loop with bios 18. No matter what options I try to change in the bios I get to windows 8 install first spinning circle and it breaks down at loading winload.exe error with the xeon cpus. Trying to install windows is the only way to generate error messages to pass on to here as just booting up W8 just boot loops too quickly.

-screenshot from aida64>motherboard>cpuid
No screen shots
-CPU spec codes
E5405 SLAP2
E4510 SLBBC
L5430 SLBBQ
All quad core Xeons.The xeons will work on the motherboard if the motherboard is core 2 quad compatible.

The same quad core CPUs work on the D975xbx2 motherboard but the bios file has a .BIO extention so I think it is useless to link to it for updateing the AW9D with.

I'm happy to do all the leg work to get the bios up and running while it's still quite quiet here at work. The only problem is I just don't know where to start!
Heading over to the tutorials section for a read and to pray that I don't brick the AW9D. Any pointers will be well appreciated.

Looking for similar motherboards that have 975 chipsets that might have what I need and found this. http://www.tomshardware.com/reviews/975x...,1257.html and http://www.hardwareheaven.com/reviews/st.../index.php .Will go through the list to try and find a chipset to match my board.
Found this page http://www.overclock.net/t/213781/asus-e...i-and-680i so I'm on the look out for bios files for the 975x Asus motherboards that might be compatible with the award bios.
Found this list for the P5WHD http://www.asus.com/Motherboards/P5W_DH_...pDesk_CPU/ and noticed that the motherboard supports most if not all the socket 775 cpus Intel ever pushed out.
P5W64 WS bios files http://www.asus.com/Motherboards/P5W64_W...pDesk_CPU/
P5WDG WS bios files http://www.asus.com/Motherboards/P5WDG2_...pDesk_CPU/

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