e6600 wouldn't boot at 3.2GHz

[Jumpem]

I have the CPU voltage at stock, 1.35v.

My RAM is G. Skill with Micron D9 chips. I have it at 2.0v. Should this be higher?

I am using a P5B Deluxe. What should I set "DRAM Frequency" to in the BIOS. I have it at Auto. Should I manually set it something... 533, 667, 800, 1066? I don't really see anything that stands out as being the memory divider. Is this it?

 

[Jumpem]

Ok, I noticed when I set the FSB to 355 this time, that the options under "DRAM Frequency" changed. I selected 710, and it booted up.

Do I want to keep selecting the one that is double the FSB, as when it is stock... or choose the highest setting that mym memory is capable of?

 

[cmdrdredd]

Originally posted by: Jumpem
Ok, I noticed when I set the FSB to 355 this time, that the options under "DRAM Frequency" changed. I selected 710, and it booted up.

Do I want to keep selecting the one that is double the FSB, as when it is stock... or choose the highest setting that mym memory is capable of?

You should try putting your memory at 2.2v and see what happens. try the next step up from 1:1 and 4-4-4-12 and see what happens. Should run perfectly.

 

[n7]

Don't use auto, or the mobo will select the ratio depending on it's mood, & usually, that's a bad mood

Set it to 1:1, aka double the speed of your FSB.

To make things simple, you need to OC in steps, just like for every platform.

Loosen up the RAM timings for now while your find your CPU's max, then tweak them later.

RAM timings to use until you find CPU's max:
5-5-5-15-6-42-10-10-10-10

Whatever your rated vdimm is, set it to that.

Now since the P5B-D tends to dislike running in the ~350-399/400 range, i'd suggest skipping that.

You'll need to use the 8x multi instead of 9x then.

Then run 8x401, yes 401 not 400, as at 401 you have fully switched to the 1333 strap, which is far easier on the mobo.

Oh, & set vcore to 1.4 to try booting @ 8x401.

There's major vdroop, so the 1.4V you set will only result in around 1.36/1.35V.

 

[cmdrdredd]

I run 400Mhz fine but I see where ppl won't run fine.

 

[n7]

Originally posted by: cmdrdredd
I run 400Mhz fine but I see where ppl won't run fine.

I should really test out the whole 399/400 stability issue thing myself, but since i have no desire to ever run that slow, i haven't bothered

 

[Jumpem]

Thanks guys I will try these later. What should I expect to top out around with air cooling? I know the e6300/6400 guys usually end up around 3.4GHz. Same with an e6600?

 

[n7]

Originally posted by: Jumpem
Thanks guys I will try these later. What should I expect to top out around with air cooling? I know the e6300/6400 guys usually end up around 3.4GHz. Same with an e6600?

http://www.hardforum.com/showthread.php?t=1075792
Compare your stepping to those to see

Oh, & when you finish OCing, add yourself to that database if you can
The more we have, the better.

 

[Jumpem]

Originally posted by: n7
http://www.hardforum.com/showthread.php?t=1075792
Compare your stepping to those to see

Oh, & when you finish OCing, add yourself to that database if you can
The more we have, the better.

Thanks for the link.

What do I want to keep my temps under at load, 60C? Should I increase my CPU voltage or just see what it does at 1.35v?


cmdrdredd: Where did you get just the Dominator cooling fan?

 

[n7]

Well, if you keep vcore low, under 60C can happen, but with higher vcore (if you want to get to the 3300+ MHz range), you'll likely hit over 60C under Orthos load.

I wouldn't worry about temps unless you are loading well over 70C, since throttling doesn't happen till about 85C.

I'd say around 1.45V is fine, as that's roughly 0.1V over stock. But i wouldn't do that kind of vcore unless it's needed to accomplish your OC.

Try something like 1.4V & see how you can go.

 

[n7]

Also, generally speaking, you can sorta feel the point where additional vcore isn't worth it.

On my system, i run my sigged speeds at 1.45V (bios) which is 1.4-1.42 in Windows.
I couldn't even get 50 MHz more with two steps up in vcore, which tells me that i am basically at my CPU's max.

 

[orion23]

Do you want to go past 3.2ghz or is that your target?

If you want to go higher, then change your multiplier to 9 and set the FSB to 401 for a 3.6ghz overclock Set your Vcore to about 1.48 and see if it can do it. If it does boot, great, if not, you know what to do.

I think it is better to run a higher multiplier vs the higher FSB since this way you won't be stressing your board as much (9X401 vs 8x450)

And keep your ram @ 2.2V manual timings 4-4-4-12 and a 1:1 ratio with your FSB (2XFSB)

 

[Jumpem]

Originally posted by: orion23
Do you want to go past 3.2ghz or is that your target?

If you want to go higher, then change your multiplier to 9 and set the FSB to 401 for a 3.6ghz overclock Set your Vcore to about 1.48 and see if it can do it. If it does boot, great, if not, you know what to do.

I think it is better to run a higher multiplier vs the higher FSB since this way you won't be stressing your board as much (9X401 vs 8x450)

And keep your ram @ 2.2V manual timings 4-4-4-12 and a 1:1 ratio with your FSB (2XFSB)

It booted at 3.6 (9x400), at stock voltage. Ram is 2.1v at 4-4-4-12, and 1:1. It ran through SuperPi quick. Haven't tried anything else.

Ok, it failed Orthos pretty quick this way. Do I loosen my RAM timings, or up the voltage there? Or do I start with the CPU voltage?

 

[Duvie]

My question is why the he11 did you even run the memory at 2.0v when if it is the micron D9 stuff it likely states on the ram sticks themselve 2.1-2.2v?

What ortos are you running? Small FFT? If so raise vcore....Large FFT & blend it could be memory or cpu...

keep it at small FFT for now until so you can isolate the cpu....

You may want to raise the NB chipset volatge as well..

 

[n7]

There's no way you're gonna get 3600 MHz stable @ stock vcore!

But damn, it's impressive it booted.

Up it till she stops failing

Make sure you are using small FFTs to stress CPU.

Use blend to stress CPU & RAM.

 

[orion23]

Don't forget to change the RAM voltage to the rated value (2.1 I think)

And also change the VFSB, VMCH Voltage (go high on the VMCH and middle ground on the VFSB)

Change your CPU Voltage to 1.45V and see if orthos passes. If it does, try lowering it a bit. If it doesn't, well, up it some more!

And please don't be stobborn and change the FSB to 401 or a bit higher. There is a reason for this. THE ENTIRE MOTHERBOARD WILL WORK HARDER @ A 400FSB THAN IT WILL @ 401 AND ABOVE. Reason why? The 1333 strap!

 

[Duvie]

My E6400 boots at 3.6ghz with 1.425v but does not post into windows...Also needs my 1000ddr2 Gskill sticks...

Just like N7 says...It takes me 1.46v to get 200mhz slower to work...

problem is that booting will not stress both cores....I can get it to run superpi at 3.55ghz but since it is single threaded it is not much of a stretch...start something multithreaded and it hardlocks quickly!!!

 

[Jumpem]

Originally posted by: Duvie
My question is why the he11 did you even run the memory at 2.0v when if it is the micron D9 stuff it likely states on the ram sticks themselve 2.1-2.2v?

What ortos are you running? Small FFT? If so raise vcore....Large FFT & blend it could be memory or cpu...

keep it at small FFT for now until so you can isolate the cpu....

You may want to raise the NB chipset volatge as well..

G. Skill said 2.0-2.1v, so I have it at 2.1. I am using Orthos on blend. I will try upping the CPU voltage, and running small FFT.

What limit should I keep the voltage at? I don't want to do anything too far past stock.

 

[orion23]

Well, it looks like you have a very good chip there, so don't be afraid to give it more voltage. Intel says that the maximum voltage for a core 2 duo is 1.55 V.

I personally think anything under 1.5 V is fine. There are others that don't go past the 1.4V limit. And I've seen come CRAZY guys running 1.6 to 1.7 Volts.

At the end of the day, an E6600 is only $300 and it will continue to get cheaper, so if you use 1.5 volts or more and your CPU ends up dying 1 to 2 years from now, well, it will only be worth about $100 by then

 

[Jumpem]

Originally posted by: orion23
Don't forget to change the RAM voltage to the rated value (2.1 I think)

And also change the VFSB, VMCH Voltage (go high on the VMCH and middle ground on the VFSB)

Change your CPU Voltage to 1.45V and see if orthos passes. If it does, try lowering it a bit. If it doesn't, well, up it some more!

And please don't be stobborn and change the FSB to 401 or bit higher. There is a reason for this. THE ENTIRE MOTHERBOARD WILL WORK HARDER @ A 400FSB THAN IT WILL WITH 401 AND ABOVE. Reason why? The 1333 strap!

Changed the FSB to 401, and upped the CPU voltage 1.45. Seeing if Orthos will run now.

 

[cmdrdredd]

Originally posted by: Jumpem

Originally posted by: n7
http://www.hardforum.com/showthread.php?t=1075792
Compare your stepping to those to see

Oh, & when you finish OCing, add yourself to that database if you can
The more we have, the better.

Thanks for the link.

What do I want to keep my temps under at load, 60C? Should I increase my CPU voltage or just see what it does at 1.35v?


cmdrdredd: Where did you get just the Dominator cooling fan?

www.zipzoomfly.com sells the fan for $21.90 shipped. Unless the price has changed. I had to search hard to find it on there.

 

[cmdrdredd]

Originally posted by: Duvie
My question is why the he11 did you even run the memory at 2.0v when if it is the micron D9 stuff it likely states on the ram sticks themselve 2.1-2.2v?

What ortos are you running? Small FFT? If so raise vcore....Large FFT & blend it could be memory or cpu...

keep it at small FFT for now until so you can isolate the cpu....

You may want to raise the NB chipset volatge as well..

Micron D9 can run at low voltages. In fact my Crucial will do DDR2-800 3-3-3-12 at 2.0v and DDR2-800 5-5-5-15 at 1.9