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775i65gv - Pentium Extreme Edition 955 bios mod request
#1
Hello

I have an asrock 775i65gv motherboard with official bios 2.40 version. Anyone has the bios mod for this motherboard for support Pentium D Extreme Edition 955 (Presler-65nm)?

motherboard link: https://www.asrock.com/MB/Intel/775i65GV/index.asp
similar motherboard link that support Pentium D 955 cpu: https://www.asrock.com/MB/Intel/775i65G/index.asp

please help me.
find
quote
#2
Post screenshots of first (CPU) & third (Mainboard) tabs of CPU-Z with supported CPU.
Tell sSpec of your Pentium D. Explain exactly what happens when you try to boot with it.
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quote
#3
[Image: pcxc_1.jpg]

[Image: iyrh_3.jpg]

Sspec is SL94N -- http://www.cpu-world.com/CPUs/Pentium_Ex...3955).html

I'm going to buy this processor and not yet installed on the system. The manufacturer says the processor is not supported by the motherboard.
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quote
#4
Make current BIOS backup by Universal BIOS Backup ToolKit 2.0
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quote
#5
(11-16-2018, 12:41 PM)DeathBringer Wrote: Make current BIOS backup by Universal BIOS Backup ToolKit 2.0

ok , I did do it.

Download Link:

https://ufile.io/6d2t8
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quote
#6
How you did flash latest BIOS? By native AsrUBios.exe?
What was CPU installed when BIOS flashed?
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quote
#7
I do not know.
When I bought the motherboard, the latest version of the BIOS was already installed on it.

Pentium 4 661
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quote
#8
Well. Your motherboard doesn't support FSB=1066 Mhz. So you need downclock speed Pentium XE 955 to boot with it. You should make BSEL mod 1066->800. If it boots normally then reflash latest BIOS AsrUBios.exe and overclock to normal state.
Or simply buy supported Pentium D 9x0 with FSB=800 Mhz. Pentium D 9x5 are not recommended - they don't support virtualization.
BTW: you need motherboard's PCB version R1.04 to use dual-core CPU.
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quote
#9
How do I do this? ---> "You should make BSEL mod 1066->800"
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quote
#10
You need to connect pad BSEL1 to VCC (view from top of CPU):

[Image: attachment.php?attachmentid=197306]
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quote


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