740 SFF, processors don't work

Question

Hello, I used to have Optiplex 740 motherboard on my computer, but sadly it has 'died' from faulty RAM. The processor I had on it was AMD Phenom X4 9600B, which worked just fine. Then I purchased Optiplex 740 SFF because I couldn't find standard one anywhere. But according to this https://www.dell.com/downloads/global/products/optix/en/optix_740_techspecs.pdf the processor should work fine on it. When I mounted SFF and inserted the processor it didn't work, it was just showing amber light on start button, but when I inserted AMD 64X2 6000+ that I had it worked, and still works just fine on it, and it is not even on the list on supported processors. I thought that 9600B died along with the previous motherboard but just today I purchased another 9600B which is in working state and it still shows amber light on start button and no display on monitor. I switched back on 6000+ and yet again it works. And on top of everything I have also upgraded BIOS to 2.2.7 version. Now my question is: Can 9600B work on SFF and you made a mistake in the document? If not please do let me know which is best supported processor for SFF in order to know what to order or if I am even supposed to since maybe 6000+ is best it can support. Do I have to do something with motherboard in order to make it work with these processors? Is there something else I have to do? Regards.

speedstep · Answer

https://www.dell.com/downloads/global/products/optix/en/optix_740_techspecs.pdf

AMD Generic Encapsulated Software Architecture (AGESA), is a bootstrap protocol by which system devices on AMD64-architecture mainboards are initialized. The AGESA software in the BIOS of such mainboards is responsible for the initialization of the processor cores, memory, and the HyperTransport controller.

Families: Athlon 64, Athlon 64 X2, Second Generation Opteron
Cores: Orleans, Santa Ana, Santa Rosa, Windsor

AMD Athlon 64 X2 6000+ (3 GHz, 89W)

Microarchitecture   K8
Processor core ?    Windsor
Core stepping ?    JH-F3
CPUID   40F33
Manufacturing process   0.09 micron silicon-on-insulator
The number of CPU cores   2
The number of threads   2
Floating Point Unit   Integrated
Level 1 cache size ?    2 x 64 KB 2-way
2 x 64 KB 2-way data caches

AMD Phenom X4 9600B
CPU part number
HD960BWCJ4BGH is an OEM/tray microprocessor

Stepping code   JAAHB AA
Frequency ?    2300 MHz
Bus speed ?    One 1800 MHz 16-bit HyperTransport link (3.6 GT/s)
Clock multiplier ?    11.5
Package   940-pin organic micro-PGA
Sockets   Socket AM2
Socket AM2+
Architecture / Microarchitecture
Microarchitecture   K10
Platform   Perseus
Processor core ?    Agena
Core stepping ?    DR-B3
CPUID   100F23
Manufacturing process   0.065 micron

Spec Lists the following.

Azrael999 · Answer

So SFF can support 9600B? Why doesn't it work on mine then?

speedstep · Answer

Any number of reasons including but not limited to a specific version of the board. The word "Enhanced" does not appear on the BIOS splash screen. Brisbane 65 nm is not working on the socket for Windsor 90 nm.

I am not Dell Engineering so Don't ask I wont tell.

@DELL-Chris M may have more information.

RY469/YP693 is the SFF board.

Chipset: NVIDIA Quadro NVS 210S

YP806 is the Mini Tower.

Bad Cpus.

Fake Cpus.

89W and 95W version work, but not the 125W and up version.
These require the Copper Heatsink MR313 not the aluminum heatsink.

https://www.ebay.com/p/Dell-MR313-Heatsink-Shroud-Optiplex-580-740/1700246643

Ram is to Slow for the newer processor.

You can always have faster than your cpu ram but not slower.

This wouldn't be the first time that a cpu worked on some but not all.

G33M02 vs G33M03 for example. Both boards support Core2 Duo but only the M03 version supports Core2 Quad.

AND the Quad Versions have 350W power supply not 305W.

Dell-Optiplex-740-Desktop-Motherboard-YP696

Optiplex Desktops

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