Help on Optiplex 3020 maximum CPU capacity

Question

I have an Optiplex 3020 and wanted to know the maximum CPU i should buy.I'm thinking about Intel Core i7-4790K but not sure if it's compatible

mrwhite1 · Answer

Thanks for the info mate :manhappy:

JOcean · Answer

I would say the 4790K would not work but the 4790S should. The following post will help a lot with a list of compatible CPUs.

https://www.dell.com/community/Optiplex-Desktops/Optiplex-3020-SFF-Processor-upgrade/td-p/6112570

Marshmont · Answer

For what its worth, I just put an i7-4770 in an Optiplex 3020 MT with NO problems. I upgraded the BIOS to the latest (A20), It idles at 23° C and NEVER got to 70° C running Prime95 for an hour (I did polish the heat sink and CPU with 2500 grit paper).

speedstep · Answer

The 4790 that works is the 4790S which is a 65W CPU.

https://ark.intel.com/content/www/us/en/ark/products/80807/intel-core-i7-4790k-processor-8m-cache-up-to-4-40-ghz.html

4790K is 88W

https://ark.intel.com/products/80808/Intel-Core-i7-4790S-Processor-8M-Cache-up-to-4_00-GHz

XRY60 i7-4790S,3.20GHz,65w,8MB,FSB 1600MHz,LGA,Haswell
2VC8F i7-4770S,3.10GHz,65w,8MB,FSB 1600MHz,LGA,Haswell

H151Y i5-54460S,2.90GHz,65w,?MB,FSB 1600MHz,LGA,Haswell
RX37T i5-4670S,3.10GHz,65w,6MB,FSB 1600MHz,LGA,Haswell
0HP1C i5-4570S,2.90GHz,65w,6MB,FSB 1600MHz,LGA,Haswell
P22T4 i5-4440S,2.80GHz,65w,?MB,FSB 1600MHz,LGA,Haswell

PX8R2 i3-4170,3.70GHz,54w,3MB,FSB 1600MHz,LGA,Haswell
KYD5C i3-4170,3.70GHz,54w,3MB,FSB 1600MHz,LGA,Haswell
05MXD i3-4160,3.60GHz,65w,3MB,FSB 1600MHz,LGA,Haswell
P5FJT i3-4130,3.40GHz,65w,10MB,FSB 1600MHz,LGA,Haswell
M18KC i3-4160,3.60GHz,65w,3MB,FSB 1600MHz,LGA,Haswell
CX4JJ i3-4150,3.50GHz,65w,3MB,FSB 1600MHz,LGA,Haswell
J0VNG i3-4150,3.50GHz,65w,3MB,FSB 1600MHz,LGA,Haswell

HKMFY G3260,3.3GHz,54w,3MB,LGA,Haswell
FFYG3 G3250,3.20GHz,65w,3MB,FSB 1600MHz,LGA,Haswell
37RPN G3250,3.20GHz,65w,3MB,FSB 1600MHz,LGA,Haswell
9H4P2 G3240,3.10GHz,65w,3MB,FSB 1600MHz,LGA,Haswell
5RY21 G3220,3.10GHz,65w,?MB,FSB 1600MHz,LGA,Haswell
HRFH7 G1840,2.80GHz,65w,?MB,FSB 1600MHz,LGA,Haswell
HKGVH G1820,2.70GHz,65w,MB,FSB 1600MHz,LGA,Haswell

Marshmont · Answer

My i7-4770 is 22nm with a TDP of 84 Watts. I t still keeps VERY good temps (low 20's idle, mid 60's under high load with Prime95) with the stock cooler.

speedstep · Answer

The issue is not temp its overloading the 290W or LESS power supply.

Optional 365W power supply would not have issues.

Dell Optiplex 3020 7020 9020 Precision T1700 365W Power Supply 7VK45 HU365EM-00

Standard Power Supply works with an Adapter for 24 pin to 8 pin.

http://www.moddiy.com/products/Dell-OptiPlex-3020-PSU-Main-Power-24%252dPin-to-8%252dPin-Adapter-Cable-%2830cm%29.html

Conair · Answer

I put a Xeon E3-1276 V3 in mine and it works and recognizes fine.

d1ddle · Answer

I wouldn't say that the 4790K wouldn't work since mine does, but requires a BIOS update which needs an older CPU seated to install. Caused a big headache when I almost threw out my old CPU when I got the 4790K. User Benchmark of mine: https://www.userbenchmark.com/UserRun/54719826

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