can i overclock a core 2 quad q8400

Toggle sidebar Toggle sidebar
D

dawidnowak184

Prominent
Nov 16, 2017
1
0
510
I have a dell optiplex with a core 2 quad q8400 2.66 ghz and i want to overclock it but there is not setting in the bios to do that
Is there another way to do this?
 
Solution
W
It won't happen in the BIOS. The simplest way is to get a Q9550 for $20-$25, or a Q9650 for a bit more. It does make a difference which Optiplex you have, including case size
Mini Tower, Desktop, Small Form Factor, and Ultra SFF. usually noted as MT,DT,SFF, and USFF.
. There are a couple that can do a little better but they're uncommon. There is also one that chokes unless you get just the right CPU stepping.
I'm going to post examples from an Opti 780 because there are a lot of them, the 760 is almost the same, as is the 755.
http://www.userbenchmark.com/System/Dell-OptiPlex-780/3883
You can see that yours is 36%, the Q9550 is 38% and to get 40% CPU score you need the Q9650. This is % rankingof all systems tested, not % of...
Sort by date Sort by votes
W

william p

Splendid
Sep 22, 2010
3,788
100
30,340
It won't happen in the BIOS. The simplest way is to get a Q9550 for $20-$25, or a Q9650 for a bit more. It does make a difference which Optiplex you have, including case size
Mini Tower, Desktop, Small Form Factor, and Ultra SFF. usually noted as MT,DT,SFF, and USFF.
. There are a couple that can do a little better but they're uncommon. There is also one that chokes unless you get just the right CPU stepping.
I'm going to post examples from an Opti 780 because there are a lot of them, the 760 is almost the same, as is the 755.
http://www.userbenchmark.com/System/Dell-OptiPlex-780/3883
You can see that yours is 36%, the Q9550 is 38% and to get 40% CPU score you need the Q9650. This is % rankingof all systems tested, not % of performance gained. You will also see the GPU scores are all low unles you get a GTX1050 series. This can be moved to your next computer so spending for that isn't a waste.
The Q6600 you sse is an old school pinmod to 3GHz but since it's equal to what you have now it's pointless. It would score in the mid 20%s at it's base clock of 2.4GHz.
 
Upvote 0 Downvote
Solution
W

william p

Splendid
Sep 22, 2010
3,788
100
30,340
You could try a software fsb overclock using SetFSB, or Clockgen. You need to know your PLL chip#. it lets you raise FSB. The results are limited because it doesn't change Voltage. The Q9505S might produce a better result because it's 65W to start with.
PLL Cv183APAG.
http://www.delidded.com/lga-771-775-cpus/?filter=socket-lga-775,series-core-2-quad,series-xeon,fsb-1333,node-45nm&tdp-max=65
There is a VID pinmod that helps with this method but it's very complex and varies for each CPU depnding on what VID it came with. See what SetFSB gets you. You can learn on the chip you have and if it looks promisng spend $20 for the 65W CPU.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom