overclocking a e6300 questions

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jonneymendoza

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Hi I am planning on OCing an e6300 using the stock cooler at first until when I order a better CPU cooler.

The motherboard I will use is a MSI P965-PLATINUM iP965 with 1 GB ddr2 corsair xms2 800 MHz.

Now I am a total noob in OC and I have read a few pointers to how I can OC a CPU.

I have read that I would need to OC the CPU first and than the memory.

Cant I OC both?
Quite a few places I heard have stated that they OC their cpu from a fsb of 250mhz to something above 300mhz which according is around 2.somthing GHz in regards to the 1.86ghz that this cpu is currently stocked at? How can this be? Doesn’t the e6300 start at an fsb of 1066 MHz fsb? Why do people OC it down to 300s or am I missing something?

People also say that the fsb of these CPU’s are around 250 MHz at stock level? Why does it say on the box that its 1066?

Thanks in advance and hope someone can clarify this please, thanks.
 
What they mean by OCing the RAM and then the CPU seperately is simply the process you go through, to determine the MAXIMUM operating frequency of both your CPU and RAM.

For example, you set the CPU multiplier as low as possible to see how high your RAM can get, note that # and do the same thing for the board and CPU.

But, you're right, in the end you'll be OCing both the CPU, RAM and Board at the same time... Seperating the components is just a "test" to see how far each individual part can get, without being affected by other components.

the 1066 FSB figure you're quoted is a QUAD PUMPED VALUE... IE, the base value (266 stock mhz) gets multiplied by 4 to reach that 1066 specification... When they say they "Overclocked their FSB to 300" this is ALSO equal to 1200mhz (see, 300 x 4 = 1200, just as 266 x 4 = 1066) See?

The stock FSB for that Chip is 266 mhz, and the stock multiplier is 7x. Upping the FSB to 300, will give you an effective frequency of 300 x 7 (2100mhz on the processor) and 1200mhz on the FSB.

350mhz * 7x gives you 2450mhz on the CPU, 1400mhz FSB and about 700mhz on the RAM (if you placed your RAM in 1:1 mode, also known as DDR533 speed).

Now, something you'll wanna consider on that board... is that it's got alot of problems posting between 350 and 400 base FSB... So, if you can't get stable at (for example) 375mhz, try jumping up to 401, and giving it a bit more voltage...

Kinda confusing, but not all that bad when you stop thinking logically about it.
 
so the fsb affects both the cpu and the board?ok im begining to understand it better now. with ddr800 i can only go a max of 400mhz because my stock timings of my ram is already at 5-5-5-12?
 
No, that's what memory dividers are for.

At stock speed your memory has a 1:1 divider, that means your memory runs at 266MHZ(your stock FSB)x2=DDR 533 . You can have your FSB at 400 and a memory divider of let's say 5:6 (depending on the mobo, you have different dividers available), then the CPU would run at 400x7=2800MHZ, the memory at 1:1 would run at 400x2=DDR 800 and your memory with the previously mentioned (5:6) divider at 400x2/6x5=DDR667 etc. etc.
 
cheers mate it makes sence now. im gunna try to OC the fsb to 300MHZ and that should affect both cpu andn ram?
 
I'm standing in your shoes. ;)
I'm a n00b to overclocking and just built a system with e6300, msi p965 platinum. Although I went with g.skill ddr2 800 ram.
I first tried OCing the fsb to 300 using MSI's "dual core center" app and my system crashed. (also the app itself crashed a couple times which is probably not a good sign)
Now I am doing it manually from bios (and in smaller steps) and having some better results. Although I did have one bad crash where I couldn't recover from even when I shorted the jumper to clear all cmos settings. A member of this forum recommended removing the cmos battery and unplugging the system for a while. I did that and was able to post again. Just thought I'd let you know about that in case something similar happens to you.

Let us know how your attempts go. I haven't seen many people using the msi board like us even though it had a favorable overclocking review from tom's hardware.
 
I need some help regarding Overclock issues. I overclocked last night on the stock HSF and got 2.8 ghz @ 55 degrees. Fsb @ 401, memory 802, dram settings were on manual mem ram 2.1 V and vcore 1.25 .

So I then go out and buy Zalman HSF cost me roughly $100 after taxes. I did the installation ran it, and on boot up it said " Press F1 to go through Bios setup" or "F2 to restore defaults" so me thinking "press F2" restored all my defaults back which i didnt want.

So heres the new problem. I updated Bios on my P5b-E and go back into bios to redo what I did last night. Try rebooting. It gives me an error stating "Cannot overclock bla bla bla"
So my question is, Why wont it allow me to overclock now?
 
michaLcoughliN said:
I need some help regarding Overclock issues. I overclocked last night on the stock HSF and got 2.8 ghz @ 55 degrees. Fsb @ 401, memory 802, dram settings were on manual mem ram 2.1 V and vcore 1.25 .

So I then go out and buy Zalman HSF cost me roughly $100 after taxes. I did the installation ran it, and on boot up it said " Press F1 to go through Bios setup" or "F2 to restore defaults" so me thinking "press F2" restored all my defaults back which i didnt want.

So heres the new problem. I updated Bios on my P5b-E and go back into bios to redo what I did last night. Try rebooting. It gives me an error stating "Cannot overclock bla bla bla"
So my question is, Why wont it allow me to overclock now?
Click to expand...


Ehhh... Boot up in stock settings and check your temperatures with intel TAT or CoreTemp under full double load.

Additionally, lots of BIOS versions are worse than other versions, I know the P5B Deluxe, benefits from certain BIOS versions, and it's best with rev. 13 for me.
 
tyen said:
I'm standing in your shoes. ;)
I'm a n00b to overclocking and just built a system with e6300, msi p965 platinum. Although I went with g.skill ddr2 800 ram.
I first tried OCing the fsb to 300 using MSI's "dual core center" app and my system crashed. (also the app itself crashed a couple times which is probably not a good sign)
Now I am doing it manually from bios (and in smaller steps) and having some better results. Although I did have one bad crash where I couldn't recover from even when I shorted the jumper to clear all cmos settings. A member of this forum recommended removing the cmos battery and unplugging the system for a while. I did that and was able to post again. Just thought I'd let you know about that in case something similar happens to you.

Let us know how your attempts go. I haven't seen many people using the msi board like us even though it had a favorable overclocking review from tom's hardware.
Click to expand...

Make sure your RAM divider is set to DDR533 (AKA 1:1 or 266mhz) as this should be a RAM problem... I mean, I don't know a conroe/board that can't hit 300FSB, but I certainly know RAM that can't post higher than their rated specifications.
 
Arcygenical said:
Make sure your RAM divider is set to DDR533 (AKA 1:1 or 266mhz) as this should be a RAM problem... I mean, I don't know a conroe/board that can't hit 300FSB, but I certainly know RAM that can't post higher than their rated specifications.
Click to expand...
But I want fast ram as well as a fast cpu. :) I'm still taking baby steps, just finished 6 hours of orthos blend with no errors with(as cpu-z reports):
cpu: 282.5Mhz x 7 = 1977.6Mhz
ram: 423.8Mhz 2:3 ratio 3-4-4-12 2.00v

Although I'm not sure why cpu-z reports cas latency of 3, because I set it to 4 in the bios...
I also chose 800Mhz dram frequency. I'm not sure how that equates to 2:3
 
You'd never notice the difference between RAM running at 600mhz and 900mhz.

RAM speed climbs with FSB speed too... So the 1:1 divider with a FSB of 400 will give you DDR2-800 speeds...
 
Arcygenical said:
You'd never notice the difference between RAM running at 600mhz and 900mhz.

RAM speed climbs with FSB speed too... So the 1:1 divider with a FSB of 400 will give you DDR2-800 speeds...
Click to expand...

I read through this whole review, even thought the tests were with ddr instead of ddr2, the gains do seem to be pretty low ( <5% when going from ddr400 to ddr600)
http://www.tomshardware.com/2006/03/31/tight_timings_vs_high_clock_frequencies/

So I am trying to oc my cpu without doing ram at the same time. I failed jumping to 401. (failed at "init video / detecting cpu clock")
That reminds me, jonneymendoza. Make sure you hook up your "d-bracket" for your msi p965 mb even if you don't need the extra sub ports. Those 4 little LEDs are very useful for seeing at exactly which stage of boot something goes wrong.
So I tried a smaller hop: 30 minutes of orthos now at 300Mhz x 7 = 2100Mhz

I also found where 3:2 for ddr2 800 came from: (266/2)*3=399 ~ 400Mhz *2 (since it is ddr2 ) = 800
 
I have my E6300 O/c'd at 350 fsb, 700 mhz Ram, Vcore 1.3 and mem 2.1

If I raise my FSB any higher and try to reboot it wont allow me. Im searching for answers. Right now my temps at 39 C which is fine but means I can go higher.
Any reason why Im not able to overclock higher without a boot O/c error?
 
Success at 350Mhz and 375Mhz, but failure at 388even after bumping up voltage.
By failure I mean it POSTs but crashes upon windows xp loading. (same at 400 or 401)
My core temps are around 60C running orthos small FFTs and almost reach 70c if I use iTAT's 2x100% workload.
I just tried a bunch more at 380, 383, 400, 404, 415 range since I saw people that high with intel stock cooler, but was getting worse than xp not loading, started not passing post sometimes. so I think I will just stick to 375Mhz. 1.8Ghz to 2.6Ghz is nothing to sneeze at on stock hsf I think. I was aiming for a modest not too loud overclock anyway.
Although it feels strange to run ddr2 800 ram at 750, I think I'll overclock the ram now. :) oh well, that didn't work, one hop up was 667 which meant 937 and no way to get between 750 and 937 with my fsb at 375. oh well.
I'll leave orthos overnight with the 375Mhz fsb=2625Mhz cpu and 750 Mhz 4-4-4-12 ram.
 
I just fine it weird when i Had my stock HSF it was able to run 401 FSB 1.25 Vcore and ram 2.1 but it wass running at 55 C.
Now I have a Zalman CNPS9700 I cant load on those settings. I have to keep it at 350 fsb 700 mhz and 2.1 vore 1.3

Still find it odd. Just trying to find an explination why, so if anyone knows Ide love to hear it. Should i reinstall Windows and try it all over again?
 
I have succesfuly OCed my e6300 up to 300MHZ at a temp running at an average of 37-40c

can this go up to 400MHZ on stock cooling? might just go max 350MHZ just to be on the safe side. its soo tempting just to OC it straight to 400mhz has this msi board is soo easy to OC.. Great stuff
 
michaLcoughliN said:
I just fine it weird when i Had my stock HSF it was able to run 401 FSB 1.25 Vcore and ram 2.1 but it wass running at 55 C.
Now I have a Zalman CNPS9700 I cant load on those settings. I have to keep it at 350 fsb 700 mhz and 2.1 vore 1.3

Still find it odd. Just trying to find an explination why, so if anyone knows Ide love to hear it. Should i reinstall Windows and try it all over again?
Click to expand...


maybe the thermal paste warn out when you attached the new cooler. what temps are you getting btw?

another thing, whats a d-bracket?
 
jonneymendoza said:
I have succesfuly OCed my e6300 up to 300MHZ at a temp running at an average of 37-40c

can this go up to 400MHZ on stock cooling? might just go max 350MHZ just to be on the safe side. its soo tempting just to OC it straight to 400mhz has this msi board is soo easy to OC.. Great stuff
Click to expand...


401! shoot for 401 :p.

40c load? Is that with Coretemp or intel TAT?

I'd make the jump, personally. With a bit more voltage... 1.3v or so.
 
straight to 400mhz? umm i might do! so far i got it up to 325MHZ!

what is TAT? what tools can i use to stress test the cpu for about 5-10mins? doesnt the voltage automaticly increases has i increase the fsb?

i wonder how far a e6300 can go if i had a artic freezer pro and 2gigs of ddr8500!!!!
 
Well, my attempt to jump to 400 failed miserably, but hopefuly you will have better luck. :)

TAT is the Intel Thermal Analysis Tool
http://www.techpowerup.com/downloads/392

TAT has a method for stressing cpu (by applying 100% workload to both cores)

orthos is another common stress test. (I've been using both and TAT does make my cores hotter, but people around here seem to swear by tests like orthos for turning up any problems with the system. (e.g. the gusy in intel forum require a 4 hour orthos run (or similar type of test) to prove an overclock is stable)
http://sp2004.fre3.com/beta/beta2.htm
 
jonneymendoza said:
doesnt the voltage automaticly increases has i increase the fsb?
Click to expand...

I missed one question. No the voltage is not increased automatically. But I am running at 375Mhz now with no voltage increase using your same processor and motherboard. Your mileage may vary. :D
 
Actually I got a rounding error with orthos at 375. So now I am trying 366. Maybe I should make a MSI P965 Platinum thread. I don't see a single one listed on the conroe overclock db.
 
jonneymendoza said:
maybe the thermal paste warn out when you attached the new cooler. what temps are you getting btw?

another thing, whats a d-bracket?
Click to expand...

No No. I cleaned off the CPU and applied new thermal grease. Its running now @ 39 C
at 350 FSB ram 800mhz 2.1V 1.3V vcore.

Im trying to figure out why I cant get 401 FSB 802 mhz ram . I done it on stock cooler, but it was running at 55 C and I didnt like that too much. So i bought a new cooler tried the new settings. It wont boot. It gives me the o/c error.. Why is this?
 
jonneymendoza said:
another thing, whats a d-bracket?
Click to expand...

That's what the MSI manual calls the expansion slot bracket that has two usb ports and 4 LEDs. It has two wired plugs that go in the motherboard; one for the usb and the other goes in a plug at the edge of the board between the sata plugs and the atx power plug.
These 4 lights symbolize 4 binary bits, and the 16 different arrangements of red and green indicate various stages of the boot process. These are listed in the manual and I found it quite useful when my system wouldn't boot to know at which stage of the boot process the system was hanging. (my problem was overclocking the ram too high)

Instead of putting it in the expansion slot in back, I shoved it in my empty floppy drive slot so I can see the array of 4 lights from the front. :)
 
reset the bios via cmos. refer to your manual and look up cmos.

hey mate why dont you try to re insert your stock cooler and see what happens

btw i have a t2300 core 2 duo on my laptop and i notice this cpu is runningat temps between 59-62 on IDLE!!
 
Success. I Just got my E6300 from 1.8ghz to 2.4ghz now to 2.8ghz.
FSB 401 / 802mhz (1:1)
Vcore 1.25
Mem 2.1V
101
33.33hz

On Zalman CNPS9700 running at 40 degrees Celcius Idle. Has not changed in temperature from 2.4 - 2.8ghz. I hope I can boost it up more. My goal is 3 ghz .
 
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