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X5460 cpu on DP35DP intel motherboard
#1
Hi everyone,

I'm sorry if i'm posting this in the wrong section but I really didn't understand where else to post this.

I have a Intel DP35DP motherboard and Core 2 duo processor, after reading a ton of material and watching youtube videos i realised that i could upgrade to a Xeon X5460 that was modded for socket 775. I visited several websites and asked the x5460 seller also and everywhere I found that my motherboard should be compatible with the X5460. But, now that I got the 775 modded X5460 and installed it along with a new heatsink, my pc does not boot to bios, it just turns on and is stuck in that state, no beeps or worrying sounds whatsoever. I installed the latest BIOS version (released in 2009) i could find for my DP35DP and cleared CMOS by removing the battery for around 10 hours. I have also tried the Jumper CMOS clearing method and nothing seems to work. 

When I install the previous Core 2 Duo, everything works fine.

I would appreciate your assistance in this matter at your earliest convenience.

Thank you for reading and hope you all have a great day.
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#2
This motherboard isn't compatible with Xeon for LGA771. Its BIOS isn't moddable without hardware programmer.
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#3
(03-01-2017, 11:15 AM)DeathBringer Wrote: This motherboard isn't compatible with Xeon for LGA771. Its BIOS isn't moddable without hardware programmer.

Hi Deathbringer,

Thanks for your reply.

Can you tell me which motherboard i could buy so I can use the x5460? I prefer a used one that wouldn't set me back much.

Thanks
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#4
http://www.delidded.com/lga-771-to-775-adapter/3/
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#5
(03-01-2017, 11:49 PM)DeathBringer Wrote: http://www.delidded.com/lga-771-to-775-adapter/3/

Thanks dude, have a great day
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#6
(03-01-2017, 11:15 AM)DeathBringer Wrote: This motherboard isn't compatible with Xeon for LGA771. Its BIOS isn't moddable without hardware programmer.

I've every hardware programmer out there, could you tell me how to mod the BIOS?
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#7
Did you tried to boot with Xeon? What was the result?
Make current dump of BIOS with hardware programmer.
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#8
boring story short, I'm looking to replace my current P5QL-E mobo (with E5450) because its bios is either buggy or I've messed it up...

So I've found a local ad for an DP35DP. And I'd get it right now (need those 6 SATAs) if I knew that it's possible to get it working with my old E5450.
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#9
(07-27-2019, 07:54 AM)DeathBringer Wrote: Did you tried to boot with Xeon? What was the result?
Make current dump of BIOS with hardware programmer.

I couldn't test it with Xeon, so I've just dumped the firmware, and deactivated ME using https://github.com/corna/me_cleaner

Could you please apply the Xeon patches to the bin? Then I'll solder the flash chip back onto the motherboard and report back.
https://www.mediafire.com/file/jxqagxov0...emoved.bin
SHA256: 2a2c29e150a2c3c1d978c7c2f277408c60edaac1ea67405a246b0d80db18c823



untouched dump:
https://www.mediafire.com/file/jobnnu5hk...DP35DP.bin
SHA256: 6813ae59e503f6d763817dee696772636a2c61435e6a014299ac2af4bbd913c6
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#10
OK so I tested the untouched ROM and with Xeon microcodes and the result is the same: no GPU output, slight hissing sound coming from CPU area a few seconds after power up (total PSU power consumption jumps from ~80W to ~90W), inductors/transformers and transistors/FETs heating up around the CPU (safe temps as far as I can tell), CPU fan speed is very low

With ME patched out and microcodes: CPU fan speed is prolly 100%, rest is the same

If I power on without RAM, it's the same with all the 3 ROMs: it beeps 3 times, then turns the CPU fan to 100%, but no hissing (components still heating up though), total PSU power consumption is ~80W

In none of the cases CPU itself heated up (if it did it's not much at all)
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