755 MT, CPU upgrade to Q9650?

My Optiplex 755 MT has an E8400 CPU.  Can it be upgraded to the quad Q9650?  I checked my pdf manual, but E8400 isn't listed in it either.  I also checked other forums herein, but I didn't find one mentioning Q9650.  It has the same LGA 775 socket type.

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7 Plutonium

Re: Optiplex 755 MT CPU upgrade to Q9650?

I don't think you did check. Over the past 10 years this question has been answered and answered and answered. QX9650 (130W) is a no not EVER.

https://www.dell.com/community/Desktops-General-Read-Only/Optiplex-755-Processor-Upgrade/td-p/384524...

Bios needs update BEFORE changing CPU.

Will be bricked if antivirus software is installed or you try using windows 10 to update.

XP or MSDOS to update bios.

https://www.dell.com/downloads/global/products/optix/en/opti_755_techspecs.pdf

Officially validated for all EXCEPT USFF

Intel Core 2 Quad Q6700 Processor (2.66GHz, 8MB L2 cache, 1066MHz FSB, VT)
Intel Core 2 Quad Q6600 Processor (2.4GHz, 8MB L2 cache, 1066MHz FSB, VT)


The Q9650 worked in my minI tower bios A20.

 Later Revisions with the Copper Performance heatsink with heat pipes.

 Quads
N652J 3.00GHz Yorkfield Quad Core Q9650, 12MB 95W
F886J 2.83GHz Yorkfield Quad Core Q9550 12MB, 1333FSB, E0 
N650J 2.66GHz Yorkfield Quad Core Q9400, 6MB, 1333FSB, R0
MP627 2.66GHz Kentsfield Quad Core Q6700, 8MB, 1066FSB, G0

 


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Re: Optiplex 755 MT CPU upgrade to Q9650?

I checked and it shouldn't be hard to take my word for it.  I saw that same posting, but only saw the Q6600 some for reason, probably tired.

There's also a glitch with images.  If I'm signed in, most images don't show.  If I sign out, the site backs up to initial Dell Community screen.  So if I go back where I was, I have to have ways of remembering, like if it's a newer posting I can find right away or bookmark it.  I can't always tell when I'm not seeing images while signed in, especially if some show and some not.  I know about the image indicator.

- Please consider giving posts you like a thumbs up.
- Please "Accept as Solution" posts that are a solution.

I'm a big fan of Dell, a Dell user, and not an employee. This forum is mainly user to user with occasional moderation or additional knowledge by a Rockstar or Dell employee.
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Re: Optiplex 755 MT CPU upgrade to Q9650?

I didn't mention QX9650, just the Q9650.  That processor was out before A10 BIOS.  Yet BIOS would still need upgrading?

I mentioned I have the pdf manual already.

- Please consider giving posts you like a thumbs up.
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I'm a big fan of Dell, a Dell user, and not an employee. This forum is mainly user to user with occasional moderation or additional knowledge by a Rockstar or Dell employee.
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datalot
1 Copper

Re: Optiplex 755 MT CPU upgrade to Q9650?

I want to be secure after hours of reading, because although the SFF shares all yours features with DT, aren't the same (I believe), and I haven't read in any way about customization for this model (DT). So... :


The best configuration without any dangerous hack for the Dell Optiplex 775 (DT, not SFF) can be the next? (The steps are ):

 

1. Upgrade the BIOS to the last version. (A22 actually) (done)

2. Upgrade the power supply to +500W. (waiting...)

3. Upgrade to 2 GB RAM high-density DDR2 800MHz x 4. (8 GB) (working...)

4. Upgrade the processor to Intel® Core™2 Quad Processor Q9650. (12M Cache, 3.00 GHz, 1333 MHz FSB) (stoped...) (Need feedback)

5. Upgrade the Graphics Card to 1050 Ti. (Possible?) (stoped...) (Another more lower working...) (Need feedback)

6. Upgrade the HDD to 500 GB. (maximum, no?) (done)

7. Upgrade the Operative System. (done) (relatively)

 

Firefox Friend, please, don't kill me. U_U

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7 Plutonium

Re: Optiplex 755 MT CPU upgrade to Q9650?

Only LOW DENSITY ram works so Not sure what you mean by High Density.

Intel Chipset boards REQUIRE Low Density Ram.

AMD and NVIDIA chipset boards sometimes support high density ram.

The only power supply that can be upgraded is on the Tower.  You cannot put a standard power supply in SFF or Desktop.

1050 TI is 75W and not working.  Desktop is clearly marked on the X16 slot with 25W max.

 

 

 


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I do not work for Dell. I too am a user.

The forum is primarily user to user, with Dell employees moderating
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