I'm not sure about the USFF, but the other sizes - MT, DT, & SFF came with different motherboards each. One MB can take quads, one can't. Depends on the part number (P/N) of the MB. I thought I had a reference of the P/N's saved, but don't. I'm sure one can search for the threads though.
I went from an E8400 to a Q9650 in my previous 755 MT. SSD and increasing RAM from 4GB to 8GB made a much more noticeable difference in speed.
speedstep
9 Legend
•
47K Posts
0
May 3rd, 2022 21:00
@OrkaXL
Un supported due to power supply and motherboard regulator issues.
Other Dell models like Inspiron 530 for example have 350W power supply when there is a quad core cpu.
Even Optiplex 755 models require 305W power supply for core 2 quads.
The DT SFF USFF power supply does not support Quads.
You are limited to
Intel® Core™ 2 Duo E8600/3.33GHz, 6M, 1333FSB
Only the Tower Does and only with specific Motherboards.
The Optiplex 760 MT uses two motherboards -
T674K Non-Quad core CPU motherboard
U562N Quad core CPU motherboard
Intel® Core™ 2 Quad Q9650/3.00GHz, 12M, 1333FSB
You you cannot use a quad core CPU on it.
38G73 E7400, 2.8GHz, 3MB, WFD, R0, (With VT)
F31F5 E7500, 2.93GHz, 3MB, WFD, R0, (With VT)
06YMG Dual Core E7600, 3.06GHz, 3MB, R0, (With VT)
H399J Dual Core E8400, 3.0GHz, 6MB, 65W, E0, 1333FSB
D923J Dual Core E8500, 3.16GHz, 6MB, 65W, E0, 1333FSB
N654J Wolfdale Processor E8600, 3.33GHz
Intel Core2 Quad
Intel Core2 Duo
Intel Pentium Dual-Core
Model
Q9550 Q9650 Q9400 Q8300 Q8200
E8600 E8500 E8400 E8300
E7300 E7200
E6550
E4700
E2220 E2200
Cores
4
2
2
2
2
2
FSB speed
1333 MHz
1333 MHz
1066 MHz
1333 MHz
800 MHz
800 MHz
L2 Cache size
12 MB
4 MB
6 MB
3 MB
4 MB
2 MB
1 MB
JOcean
9 Legend
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12.6K Posts
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May 3rd, 2022 15:00
This forum post should help out but basically the PSU (which is smaller than the DT PSU) cannot handle it.
bradthetechnut
7 Technologist
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9.4K Posts
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May 3rd, 2022 19:00
I'm not sure about the USFF, but the other sizes - MT, DT, & SFF came with different motherboards each. One MB can take quads, one can't. Depends on the part number (P/N) of the MB. I thought I had a reference of the P/N's saved, but don't. I'm sure one can search for the threads though.
I went from an E8400 to a Q9650 in my previous 755 MT. SSD and increasing RAM from 4GB to 8GB made a much more noticeable difference in speed.
steve3po
1 Message
0
April 26th, 2023 03:00
There are 65 watt Yorkfield quad processors that should work with a 760 SFF (M863N labeled motherboard.) From Q8200s to Q9550s.
* Core 2 Quad Q9550s, 2.83 GHz (2×6 MB L2, 1333 MHz FSB, 65 W TDP)
bradthetechnut
7 Technologist
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9.4K Posts
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April 26th, 2023 11:00
I'm attaching the 760 Tech Guide. Search using "processor" to go down to the CPU table. SFF can still take 95w CPU. USFF can't.
1 Attachment
optix_760_tech_guide.pdf
richwater123
1 Message
0
September 4th, 2023 13:44
@bradthetechnut can confirm, have an 760 SFF and the q8200 works fine