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E6600 not stable at 3.0 I need help

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February 17, 2007 9:43:19 PM

I followed wussy's guide to do this.
It's my first time trying to OC. Please be gentle.
here are the parts:
e6600 & big typhoon
p5n-e sli
8800gts
G.skill ddr-6400 F2-6400CL4D-2GBPK
Antec Neo HE 550W.

I tried to Oc to 3.0~ and it's not stable. Randomly got BSOD. I think it's the ram's problem.
here are some screenshots I took. Please give me some suggestions what I should try to do. Thanks alot.



Summary of what I did following wussy's guide:
1. Disable all the things that wussy mentioned in bios
2. Set ram timing as 4-4-4-12 ( either 2t or 1t wouldn't be stable) @ 2.013 volt.
3. Unlinked. Set vcore from auto to 1.4v
4. Increased Cpu's fsb to 1332mhz (ram still at stock @ 800mhz
that's basically what i did. I need your help. :D 

If you need any additional information please let me know.

More about : e6600 stable

February 18, 2007 1:37:30 AM

Quote:
I followed wussy's guide to do this.
It's my first time trying to OC. Please be gentle.
here are the parts:
e6600 & big typhoon
p5n-e sli
8800gts
G.skill ddr-6400 F2-6400CL4D-2GBPK
Antec Neo HE 550W.

I tried to Oc to 3.0~ and it's not stable. Randomly got BSOD. I think it's the ram's problem.
here are some screenshots I took. Please give me some suggestions what I should try to do. Thanks alot.



Summary of what I did following wussy's guide:
1. Disable all the things that wussy mentioned in bios
2. Set ram timing as 4-4-4-12 ( either 2t or 1t wouldn't be stable) @ 2.013 volt.
3. Unlinked. Set vcore from auto to 1.4v
4. Increased Cpu's fsb to 1332mhz (ram still at stock @ 800mhz
that's basically what i did. I need your help. :D 

If you need any additional information please let me know.


Absolutely don't run the ram @ 1T. I think the new DFI 3200 mobo is one of the few to work with 1T command rate.

You're running your Ram @ 5:6 mem divider. Set it to 1:1. I can't speak for the 650i chipset, but I know the 965 chipset likes 5-5-5 timings @ 400 mhz memory setting.
February 18, 2007 3:55:20 AM

I am running @ 2T. Correct me if I am wrong, but if i put at 1:1 then would it be like 3.6Ghz? I am afraid reaching 3.6 is gonna be hard and cpu would be a bit hotter. I just need it to be stable @ 3.0~
as advertised the G.skill memory I bought can run @ 4-4-4-12 2.0~2.1v
Thanks for your help.
Related resources
February 18, 2007 4:12:42 AM

Quote:
I am running @ 2T. Correct me if I am wrong, but if i put at 1:1 then would it be like 3.6Ghz? I am afraid reaching 3.6 is gonna be hard and cpu would be a bit hotter. I just need it to be stable @ 3.0~
as advertised the G.skill memory I bought can run @ 4-4-4-12 2.0~2.1v
Thanks for your help.


Nope. If you've got the memory @ 1:1 mem divider, and your fsb is 333, your memory will only be clocked @ 667. Right now, your memory is @400 mhz...your pic showed 399. I'd try loosening your memory to 5-5-5-15, just to see if that helps with what you're trying to do.

BTW...CPU-Z shows you @ 1T command rate
February 18, 2007 12:14:14 PM

I have the same problem with my E6600, random BSOD.
But i use 4 x 1GB DIMMs 667Mhz memory.
This is how i think you should reach stable 3.0 Ghz or FSB 1333.
For the E6600 3.0Ghz isnt much of a problem to reach easily with almost no raising the CPU voltage.Do the following :
Raise the CPU voltage in your bios 1 or 2 steps.
Raise the voltage of your ram to 2.00 or 2.10 Volts
FSB/ram ratio must be set at 1:1 and when you have done so check if your Ram runs at 667 Mhz (FSB 333Mhz x 2 = 667Mhz speed of ram)
You have good quality ram so you can set the timings at 4-4-4-12 at 667Mhz or just to be surely save or still get unstable results try timings t 5-5-5-15.
the greatest "bottleneck"when overclocking in your system is your MCH because the only tthing that is pushed a bit is your memory controller.Raise the voltage of your MCH to about 1.38V.
(3 or four notches from default on your MCH voltage.)
When you have done all this your system should run as stable as a rock.
Good luck!
February 19, 2007 4:24:53 PM

First of all thank you.
About the CPU voltage in bios p5n-e sli. It lists whole bunch of numbers from 1.6~v and down. It doesn't have like +0.01~ or something like that, Currently I set it to 1.39~V for the Vcore.
1.What number should I put for the Vcore?

2.My ram voltage is @ 2.01~V ( 2 notches) Is it a good idea to set divider to 1:1 @ 333Mhz because my ram is a 400Mhz default (DDR2 SDRAM DDR2 800 (PC2 6400)). and from 4-4-4-12 to 5-5-5-15 Is it gonna be a big diff.?

3.When you say MCH. I dont see it in my bios, but googled it, so I assume it is the NB voltage that I have. I still have it in auto. Last night I put up Orthos and tested on CPU only for 8~ hours. It passed the test, so I will try to settle down the ram tonight when I get home from work.

Thanks again for all the help.
February 19, 2007 5:00:14 PM

Default voltage for E6600 is around 1.25V.I suggest setting it at about 1.30V.The less volt it runs stable at, the better.More voltage means more heat and heat kills electronics in the long run.
MCH is NB voltage yes, so this should be the most "stressed"to obtain 3 ghz and needs to be raised a bit.
your ram running at 333Mhz (667)instead of 400Mhz(800)doesnt impact performance not even in a million years.800Mhz ram is mostly used for extreme overclocking with FSB to 400Mhz or higher, then it is worth having 800Mhz DDR ram.For overclocking to 3 Ghz, 667Mhz ram timing is even better because it will run synchronised to the FSB and processor delivering its data, so FSB/ram settings at 1:1 is the best you can do.Chnging ram timings doesnt help so very either, but will get better results than raising ram speeds.Most memory work in dual channel so bandwidth isnt a problem, latency can be helped a little bit by adjusting timings of ram.for your ram i should try 4-4-4-12 because i think it can manage those timings stable.If unstable at these timings try loosing the latencies to eg 5-4-4-15 or so.Performace advantage from better timings: expext 1-5% performance increase so up to you if you crave this performance over stability or not.(hopefully it will get stable at these better timings)
Im still trying to get my rig stable :-( hopefully i will succeed!
Good luck!
February 20, 2007 4:20:59 AM

Thank you for clearning things out. Finally Im home. I did like you suggested.
Lower Vcore to 1.3~, NB voltage to 1.39V (2nd notch from default). Memory voltage still 2.01V running 4-4-4-12-2T. I am doing the Memtest-86 V3.2. It's been 2 hours so far without errors ( 5 pass, 0 erros). Dont know if I did it right. Just burn iso to cd and booted from cd and it automatically ran. Im gonna leave it for the night.
hehe good luck to you too.
February 21, 2007 11:38:24 PM

I think it is stable for now. Ran memtest overnight for 12 hours and passed. No more BSODs. I have one more question regarding the temps.

I have googled and read the temp stickie so far, but due to my bad English I dont get much out of them, so I am asking for experience users to see if these temps are fine @ idle? for some reason TAT doesn't work after so many tries and which temp I should be looking at? Thank you for your replies.
February 22, 2007 3:27:42 AM

Temps are seem, but core temp looks a little bit odd. I have the same motherboard as you with an e6400 and my core temp is about 8 degrees higher then my pc probe which says 36c so i would think that your core temp doesn't work properly.
February 22, 2007 2:31:28 PM

What should I do because TAT doesn't work. :x
February 23, 2007 2:59:50 AM

Quote:
I followed wussy's guide to do this.
It's my first time trying to OC. Please be gentle.
here are the parts:
e6600 & big typhoon
p5n-e sli
8800gts
G.skill ddr-6400 F2-6400CL4D-2GBPK
Antec Neo HE 550W.

I tried to Oc to 3.0~ and it's not stable. Randomly got BSOD. I think it's the ram's problem.
here are some screenshots I took. Please give me some suggestions what I should try to do. Thanks alot.



Summary of what I did following wussy's guide:
1. Disable all the things that wussy mentioned in bios
2. Set ram timing as 4-4-4-12 ( either 2t or 1t wouldn't be stable) @ 2.013 volt.
3. Unlinked. Set vcore from auto to 1.4v
4. Increased Cpu's fsb to 1332mhz (ram still at stock @ 800mhz
that's basically what i did. I need your help. :D 

If you need any additional information please let me know.

Definitely set ram to 2T. Set ram to 5-5-5-15.
Try setting it to 8 x 400fsb. That'll get you to 3.2 ghz. I'm kinda tired. I didn't see if you bumped the northbridge or MCH voltage up any. I'd go a tick or 2 higher, because you are increasing the fsb, making the northbridge work a little harder.

You want to give the computer plenty of room to reach the plateau you're looking for. Once you successfully reach it, then you start doing things like tightening the timings, lowering voltages, etc.

Do you have the PCI-E @ 100 or auto? Set it to 100 mhz and don't mess with it.
February 23, 2007 2:42:06 PM

The system is stable. Thanks to all. memtest 12 hours no errors, orthos 8 hours passed. The only thing im worrying about is the temp as i mentioned. Those numbers are weird. Tat doesn't work. I already googled the error, but couldn't find the solution.
I have tried Core Temp, Asus Probe, speedfan,everest,pcwizzard ...
February 23, 2007 8:53:55 PM

just add 10c to whatever pc probe says and you will be fine :) 
February 26, 2007 2:35:08 PM

I have a similar configuration same C.P.U. & R.A.M. but I have a Intel 975 DFI Mother Board but maybe my Info will help. I run the ram 1:1 or 533 MHz Strap @ 390 Mhz X9=3.5 GHz using a Zalman 9500 LED 5-5-5-15 @2.2V 25C now 58C on Othhos stable for 20 Min. I lapped the Processor and am giving it 1.44 Volts Weird CPU-Z does not show Command Rate for me.



I was looking for ways to keep this Processor cooler than 66C at full load under Orthos. I found a nice muli-Pack of Fine Sand Paper at a local AutoZone so I picked up a pack. I read to do it on a piece of glass to keep it flat so I used a piece of Mirror I had to put in the bottom of cases. I started with 800 Grit and found the Integrated Heat Spreader (I.H.S.) to be quite uneven leaving the nickel on the center at first then in two corners. After mostly filling the 800 Grit piece of paper with copper dust I moved on to the 1000 Grit. I moved the C.P.U. in small circles turning the C.P.U. every few strokes reversing direction as well. I used Brass-O to polish the I.H.S. till I could see my face in it. This lowered my C.P.U. Temp from 66C to 64C @ 351X9=3.16 GHz...Hey It's still faster than a Core 2 Extreme X6800 For 1/3 the Price!

I had too much Thermal paste after a reapplication of AS5 in the amount of just a small piece of rice I got 60C then I put my System in an Antec 900 Case and got 58C Under Load even at the incredible OC of 3.5 GHz.
February 26, 2007 3:08:16 PM

I'm running 27C now don't worry I never load the processors anyware near the level of Orthos and I don't stress my C.P.U. with orthos for extended periods. My BF2 Game only works one core so it does not get that hot real world like 45C. I also had my C2 What ever turnd off untll I found my max stable over clock but now I'm using it again so it runs 2.4 GHz X6 Idle then goes of the X9 when it need the power.

I got 10800 with 3D Mark 06 running 3.6 GHz CPU 666 GPU 1000 Memory on my EVGA 8800 GTS 640 MB
February 26, 2007 6:50:59 PM

Dude! Vmem 2.1 Vcore 1.4 Vnb 1.65+ add a 40mm fan to the nb
February 27, 2007 3:58:54 AM

Thanks for sharing. It's been stable, but for Jodym2...What software did you use to monitor your temp? Today I added one more 120mm Nexus fan in front for intake. It lowered the temp from 38 to 35C idling (Asus probe) ( 27C core #1, 24C core# for CoreTemp).

For Jodym2 what temp did you get for Core Temp @ Idle?
February 27, 2007 2:23:19 PM

I watched Core temp as I ran Orthos
February 27, 2007 2:36:51 PM

Quote:
I have a similar configuration same C.P.U. & R.A.M. but I have a Intel 975 DFI Mother Board but maybe my Info will help. I run the ram 1:1 or 533 MHz Strap @ 390 Mhz X9=3.5 GHz using a Zalman 9500 LED 5-5-5-15 @2.2V 25C now 58C on Othhos stable for 20 Min. I lapped the Processor and am giving it 1.44 Volts Weird CPU-Z does not show Command Rate for me.



I was looking for ways to keep this Processor cooler than 66C at full load under Orthos. I found a nice muli-Pack of Fine Sand Paper at a local AutoZone so I picked up a pack. I read to do it on a piece of glass to keep it flat so I used a piece of Mirror I had to put in the bottom of cases. I started with 800 Grit and found the Integrated Heat Spreader (I.H.S.) to be quite uneven leaving the nickel on the center at first then in two corners. After mostly filling the 800 Grit piece of paper with copper dust I moved on to the 1000 Grit. I moved the C.P.U. in small circles turning the C.P.U. every few strokes reversing direction as well. I used Brass-O to polish the I.H.S. till I could see my face in it. This lowered my C.P.U. Temp from 66C to 64C @ 351X9=3.16 GHz...Hey It's still faster than a Core 2 Extreme X6800 For 1/3 the Price!

I had too much Thermal paste after a reapplication of AS5 in the amount of just a small piece of rice I got 60C then I put my System in an Antec 900 Case and got 58C Under Load even at the incredible OC of 3.5 GHz.




I remember reading somewhere that AS5 does NOT do well with lapped CPU IHS. Something to do with the AS5 particle size. I believe the ceramique was the way to go if you have mirror finish. Smaller particle size or something like that. Do a search and see what you come up with.


Monk
February 28, 2007 2:12:58 PM

If you look at the pix mine is around the same @ idl in term of temp, so I dont have to worry about the temp then? thanks.
February 28, 2007 2:40:51 PM

Good question. Seems temp reporting is very VERY subjective at this point with the different programs. However if CoreTemp is correct for you with Idle temps of around 26C that seems VERY good to me. Especially if your ambient is around 23C (which leads me to think it is not accurate). However I have heard that you need to ad ~12-15C to CoreTemp reporting to get accurate info. In that case you are running at 40C idle. Which might be leaning on the high side for idle. But just barely. I think around 35C for True idle temps are good with ambient of 23C and overclocked.

Please run Orthos and while running take another pic of your temps

Monk
March 1, 2007 12:56:11 AM

I opened Orthos for over 30 mins I dont know if it's long enough. Here is the result.


Been watching. The temp seems to stay there. Not going higher

I accidently hit stop right before taking the screenshot. I dont wanna run it for now. I hope you can see the picture
March 1, 2007 1:10:48 AM

Yeah temps drop rather quickly. Like 1/2 a second after the load is gone. So do you remember what your peak temps were reported by CoreTemp during orthos blend test?

Monk
March 1, 2007 1:13:43 AM

You have a pic of your memory settings? I have the same ram as you and i have it set in the bios to 1:1 divider with a 375x8 fsb but when i open cpu-z it shows me at a 5:6 divider and the memory is at 400mhz....
March 1, 2007 2:34:37 AM

I ran the test again.



and this is my memory timing.


if 400mhz and 1:1 then your cpu should be running at 3.6~GHz?
March 1, 2007 2:42:23 AM

Your temps are banging. Happy clocking!

Monk
March 1, 2007 3:13:50 AM

If core temp reads right then I am glad. This is a pix of my case. haven't installed Photoshop yet :D  If anyone has put 120 mm intake fan into the bottom front of the P180. How did you do it? because I have tried and failed.

thanks so much

March 1, 2007 11:42:46 PM

Hay 20033,

The biggest thing that held me back was the MCH voltage. Once I raised it alittle the rest came easy. I pushed the Vcore some, and then set the memory to 1.1, and she runs cool and very stable. 35c idle and 45-47 load

Raven





Quote:
I followed wussy's guide to do this.
It's my first time trying to OC. Please be gentle.
here are the parts:
e6600 & big typhoon
p5n-e sli
8800gts
G.skill ddr-6400 F2-6400CL4D-2GBPK
Antec Neo HE 550W.

I tried to Oc to 3.0~ and it's not stable. Randomly got BSOD. I think it's the ram's problem.
here are some screenshots I took. Please give me some suggestions what I should try to do. Thanks alot.



Summary of what I did following wussy's guide:
1. Disable all the things that wussy mentioned in bios
2. Set ram timing as 4-4-4-12 ( either 2t or 1t wouldn't be stable) @ 2.013 volt.
3. Unlinked. Set vcore from auto to 1.4v
4. Increased Cpu's fsb to 1332mhz (ram still at stock @ 800mhz
that's basically what i did. I need your help. :D 

If you need any additional information please let me know.
March 2, 2007 3:03:16 AM

First, most DDR2-800 module need 2.1V to stay stable. I'd start there.

Look at my setup, with same cooler. I'm doing 3.0GHZ right now and my temp under TAT never exceeded 40C. My RAM is at 2.15V. I have either 2.05 and 2.15, so I went for the later. Event better, my Vcore is only 1.31V, barely higher then stock.

I'm not saying this to brag, but to show that your C2D should't pose any problem at 3GHZ with the fan you're using.
March 4, 2007 2:45:40 PM

Quote:
Good question. Seems temp reporting is very VERY subjective at this point with the different programs. However if CoreTemp is correct for you with Idle temps of around 26C that seems VERY good to me. Especially if your ambient is around 23C (which leads me to think it is not accurate). However I have heard that you need to ad ~12-15C to CoreTemp reporting to get accurate info. In that case you are running at 40C idle. Which might be leaning on the high side for idle. But just barely. I think around 35C for True idle temps are good with ambient of 23C and overclocked.

Please run Orthos and while running take another pic of your temps

Monk


I was using smart guardian it came with my DFI Mother Board it reports 9C more than Core Temp. Do you think it's closer to the truth?
!