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HP Pavilion zd8000: CPU Upgrade
#11
Yiiiikes. I did find an AMI BIOS file from a 915P board that has code for Cedar mill, but I don't think that would be of any help.

EDIT: I found this Fujitsu-Siemens BIOS which is for a motherboard on the 915 series of chipsets! It is Phoenix based and has Cedar Mill support. It MAY need the F65 CPUID microcode, though. It appears to have references to F62 and F64 microcode. I've included a ZIP file known as D2420 and it has a compressed OCF, decompressed ROM (which can only be used to extract via phoedeco), and the extracted BIOS in a D2420 folder. Also attached is my phoedeco output to help pinpoint the files.
   


Attached Files
.zip   060627S.zip (Size: 653.58 KB / Downloads: 4)
.zip   D2420.zip (Size: 1.13 MB / Downloads: 3)
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#12
060627S.ROM is AMI BIOS.
Dell BIOS can't help.
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#13
(01-22-2022, 03:03 AM)DeathBringer Wrote: 060627S.ROM is AMI BIOS.
Dell BIOS can't help.
D2420 is a Fujitsu BIOS... it's a Phoenix BIOS with cedar mill support and it's deisigned for a 915 chipset. Not sure if you've looked at the fujitsu and HP side by side just yet
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#14
(01-22-2022, 08:04 AM)k24a1 Wrote: D2420 is a Fujitsu BIOS...
Yes, you are right. But it's useless for solving your original problem.
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#15
(01-22-2022, 08:22 AM)DeathBringer Wrote:
(01-22-2022, 08:04 AM)k24a1 Wrote: D2420 is a Fujitsu BIOS...
Yes, you are right. But it's useless for solving your original problem.

How is it useless? It has Cedar mill support for CPUID's F62 and F64. Honestly, it's the best one I could find. Otherwise, I'm afraid there isn't much I can find.
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#16
(01-22-2022, 11:27 AM)k24a1 Wrote: How is it useless? It has Cedar mill support for CPUID's F62 and F64. Honestly, it's the best one I could find. Otherwise, I'm afraid there isn't much I can find.
There is only one easy way to solve your problem - you need to find any BIOS as similar as possible to yours, but with support of Cedar Mill.
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#17
I might have found something that can work. It's a Phoenix BIOS with Cedar Mill support.


Attached Files
.zip   d2156.zip (Size: 1.49 MB / Downloads: 3)
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#18
(01-24-2022, 04:10 PM)k24a1 Wrote: It's a Phoenix BIOS with Cedar Mill support.
But with different chipset.
BTW: now I think the reason isn't BIOS but the old revision of VRD (Voltage Regulator-Down) on your motherboard.
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#19
(01-25-2022, 12:43 AM)DeathBringer Wrote:
(01-24-2022, 04:10 PM)k24a1 Wrote: It's a Phoenix BIOS with Cedar Mill support.
But with different chipset.
BTW: now I think the reason isn't BIOS but the old revision of VRD (Voltage Regulator-Down) on your motherboard.
Strange. I believe all of the 915P boards used 10.1 as with the Cedar Mill CPUs. Might be wrong though... but I believe I can just give up here. There doesn't seem to be a cME BIOS made with Cedar Mill support (and has all of the steppings), so this might just not be possible.
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#20
Hey, try to isolate pad J2 with a tape.

Like here: https://drive.google.com/file/d/1CSovnQR...sp=sharing
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