E6400 and OC?

jjet67

Member
May 8, 2003
185
0
0
If your mobo has an option to change FSB etc, you need to bump it. For instance, E6400 has default FSB of 266 and multiplier 8. So, 266*8 = 2.128GHZ which is the default speed of E6400. Say you want to bump the FSB to 400, then the computer becomes 3.200GHZ machine. Now, it depends whether your other components such as ram, video card, etc can endure the FSB of 400. You can start with the oveclocking guide you can find in this forum.
Hope this helps.
JJET
 

gobucks

Golden Member
Oct 22, 2004
1,166
0
0
The low-end conroe CPUs are monster overclockers, and I consider it a huge waste NOT to OC them because it is so easy. I have mine at just under 3.3GHz right now. In fact, mine was stable up to 3GHz without even playing with the voltage at all. This isn't even that great of an OC, since a lot of people are getting in the 3.5-3.6GHz range with e6400s.

The main limiting factor will probably be your ECS motherboard or RAM. The first thing to do is lower your RAM multiplier to the lowest possible, i.e. DDR2-533 or a 2x multiplier. If you have DDR2-667 or 800, that should leave you plenty of room to OC. Then, just go into the bios and bump up your FSB. I would think most mobos can go to at least 350MHz, but I have no idea about that particular one.

For a more extensive tutorial on OCing, there are plenty of topics in the forum on OCing conroes.
 

airhd823

Member
Jan 2, 2007
90
0
0
Will it overclock to 2.4 Ghz with stock HS + Fan?

In addition, the MOBO supports DD2-667, 800

However, i just want to OC my cpu, how does affect the RAm, etc.
 

GuitarDaddy

Lifer
Nov 9, 2004
11,465
1
0
The overclocking options are almost non existant on that board. The only thing you can do is choose the 333/100/33 option
Here

This should work if you have DDR2-667 or higher ram, and should give you 2.664ghz, but since there are no memory dividers if you have DDR2-533 ram your probably out of luck.

*edit*
Upon further investigation, I can't find anyone who has gotten the 333/100/33 setting to work, evidently it attempts to overclock ram by 25% regardless of the rams speed rating. And since there is no ram volts adjustment this is impossible.

If you want to overclock your going to have to get a new board.
 

airhd823

Member
Jan 2, 2007
90
0
0
I dont understand all those numbers. Explanation?

In addition, that makes my OC easy right? If i wanted close to 2.4, which option,

and is the stock HS and fan alright?
 

GuitarDaddy

Lifer
Nov 9, 2004
11,465
1
0
333/100/33 are the three bus speeds on the board

333=FSB which controls the CPU speed and ram speed
100=PCIe bus which controls the video card
33=PCI bus which controls harddrives and opticals

CPU mhz is FSBxcpu multi 266x8=2.128 333x8=2.664
Ram DDR2 speed is FSBxram multi 266x2.0=DDR2-533 266x2.5 =DDR2-667 266x3.0 =DDR2-800

Unforetunenately I don't think the 333/100/33 setting is going to work as I edited into my previous post. Evidently this board sets the ram multi based on the SPD(manufactures specifications) and can't be set manually in bios, therefore if you have DDR2-667 ram the board sets the multi at 2.5 and is you choose the 333/100/33 option it tries to run ram at 333x2.5= DDR-832 . I'm afraid your out of luck trying to overclock this board
 

GuitarDaddy

Lifer
Nov 9, 2004
11,465
1
0
Yes, I saw that too. But I also saw that people who've updated the bios say that the lack of overclocking options hasn't changed.

To answer your question on ram, the nvidia 650i and 680i boards are the only ones that allow you to overclock the CPU independent of ram(unlinked they call it). All others including P965 boards, ram is tied to the FSB as I described above through ram multis(also called dividers), so when you overclock the CPU via the FSB your also overclocking the ram.

*edit*

Reading the updated bios description that you linked, the only thing added that might help is the addition of ram voltage control. Depending on your ram and the maximum voltage allowed by the new bios it MIGHT allow you to use the 333/100/33 setting but I doubt it. It won't hurt to try, if it doesn't work just go back to the default or 266/100/33 setting.

And the stock HSF will be fine even if you can get it working at 2.664ghz.


 

GuitarDaddy

Lifer
Nov 9, 2004
11,465
1
0
Yep, ECS boards have never had good overclocking options. And this one really has none. Which is a shame with the CPU you have, it's a great overclocker. I have an E6400 with an Asus P5B-E board and it runs 410x8=3.28ghz on the stock HSF no problem, but the P5B-E is a $150 board with great overclocking options
 

nanaki333

Diamond Member
Sep 14, 2002
3,772
13
81
unfortunately, not everyone can OC their c2d. i can't. i have that stupid concaved crap. my e6700 is idling at 46c at stock speeds with a thermaltake CL-P0114 (don't ask what they were with the stock fan). i had a gigabyte watercooling setup on it and was down to 42c. i'm tempted to go get a 6400 or 6500.
 

myocardia

Diamond Member
Jun 21, 2003
9,291
30
91
Originally posted by: nanaki333
unfortunately, not everyone can OC their c2d. i can't. i have that stupid concaved crap. my e6700 is idling at 46c at stock speeds with a thermaltake CL-P0114 (don't ask what they were with the stock fan). i had a gigabyte watercooling setup on it and was down to 42c. i'm tempted to go get a 6400 or 6500.
Buy yourself some sandpaper, and get sanding. Quite a few of the people here who have pretty high overclocks had to do it. Just make sure you use a piece of glass (like from a picture frame), so it comes out completely flat.;)