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1912
DELL Optiplex 745 Schematic
Dear All,
I have a Dell OptiPlex 745 desktop whose warranty has expired on 6th November. I am trying to learn the internals of this laptop and study its power on sequence. To do this I want the schematic. My desktop is OptiPlex 745 Small Form Factor DCCY model. The motherboard part number is 0WK833. The motherboard has PWB WF809 REV A00 laminated on it. The USB ports and other connectors have Foxconn written on them. So it looks like a Foxconn Motherboard.
If someone has a schematic for this model of the motherboard along with the board view files, can you please share it ? I have done an extensive google search to the best of my abilities but was unsuccessful in finding them.
Thanks,
Ronnie
DellSuperHero
4 Posts
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July 28th, 2022 09:00
Dear Speedstep,
Thanks for the detailed response. It was really helpful.
I have found the schematic for a different motherboard in the internet which has the same chipset but some other chips are different. The motherboard is Gigabyte GA965-DS3 V3.3. Hence I am good.
My response along with the previous response is the solution to this issue
Thanks again for all the help.
Regards,
Ronnie
bradthetechnut
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July 26th, 2022 18:00
Proprietary Dell never released schematics of their MB's. Otherwise, anybody could copy them. The closest a person can get is MB photos (whether eBay or in a manual) or the tech guide which just points to some of the parts.
DellSuperHero
4 Posts
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July 27th, 2022 09:00
Hello,
Thanks for your response.
I see that there are many Desktop schematics floating around. Unfortunately I was unsuccessful in finding the schematic for my model on the internet. Hence, the request, if any one else was more successful than me in finding it to share.
The model is also more than 12 years old. So I was also thinking, this model has reached its end of life as far as Dell is concerned and would not mind sharing at least the schematic of this model.
Regards,
Ronnie
speedstep
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47K Posts
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July 27th, 2022 12:00
@DellSuperHero
Dell never publishes any such documentation.
Why do you need it?
Pinouts for fan headers and front panel and audio and usb and and and are not published but some things can be migrated from the tiny case so that you can use a bigger case. Thermal sensor, fans, etc can be migrated. The flex bay connection is standard USB 2.0 dual output etc.
DellSuperHero
4 Posts
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July 27th, 2022 15:00
Thanks sppedstep.
I am presently studying Computer Architecture course in my university. I want to get a feel of what they are teaching by looking at a real world working example.
Presently, I have some unanswered questions like how the PCI bus is connected to the CPU, What is the difference between Front Side Bus and Back Side Bus, where in the motherboard is the Back Side Bus etc.
Regards,
Ronnie
redxps630
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10.6K Posts
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July 27th, 2022 23:00
I know there is schematic on internet for Dell XPS 730X motherboard made by MSI. It uses X58 chipset. there is also schematic for Alienware 17 R2. But you would not be able to find most old Dell motherboard schematic on internet.
speedstep
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July 28th, 2022 00:00
@DellSuperHero
745 uses Intel 965 express chipset. Front side bus goes to motherboard backside is in the cpu. ok im done. You should do more research. 15 year old design is not really real world example in 2022.