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[Official] ASUS M2N-SLI and M2N32-SLI Club! - Page 134

post #1331 of 12343
Quote:
Originally Posted by Slink View Post
It's a good question, and you're almost there (getting my point). The point is to ISOLATE each part to figure out the limitations of each different component (mobo, CPU, and RAM, in that order). That's the "golden rule" of overclocking.

What if my mobo can only go stable up to 240 MHz, but my current CPU and RAM could go as high as 250 MHz? I wouldn't know the limitation was caused by my mobo unless I isolated the components! See?

Mine was running at 12x240 FSB (2880 effective) but I actually got suspected overheat playing Diablo 2. LOL. So I turned up my CPU fan a bit, and clocked down to 235, for an effective 12x235=2820.
Yeah, got ya. Seems to me that you have to take the system as a whole unit because the individual components seem to behave differently depending on the other components they're interacting with.

So although your 300MHz mobo is apparently able to run with a 1500MHz CPU, it behaves completely differently with same CPU @ 3000MHz and falls over. Is this a limitation of the board or the CPU given that the mobo has shown that it can run @ 300MHz and the CPU has also shown that it can run @ 3000MHz? How can you tell?
post #1332 of 12343
Thread Starter 
Quote:
Originally Posted by thlnk3r View Post
N2Gaming, was this the temperature listed in the BIOS? I might of missed this but are you planning on overclocking your PhII or will it be left at stock? A vcore of 1.4 - 1.5 volts is the norm for most overclocks exceeding 3.7Ghz for the 940. Do you have plans to change out the Zalman cooler?

Good luck
think3r those are the temps from w/in the bios screen. I was able to boot to windows several times last night and run EU 4.60 to see a steady 30.-32 degres Celcius acrross all for coures. I am going to try modest overclocking in the beginning. Did not have much luck last night. I tried to run ram at 1T timings and it was all good for a little while till I got greedy and tried to tighten up the timings a little. I don't think I will be able to push this little chip to much in this board unless I go H2O. These chips tend to run a little hotter in this board then in others for some reason. For now I am going to be using the zalman 9700. It dropped my temps about 8-10C from the stock retail HSF.
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post #1333 of 12343
Quote:
Originally Posted by pswfps View Post
Yeah, got ya. Seems to me that you have to take the system as a whole unit because the individual components seem to behave differently depending on the other components they're interacting with.
No it' the exact opposite, you have to find out what each component will do on it's own first, then there is no guessing

I suggest, if you have not already, read this guide several times:http://www.overclock.net/amd-general...ocket-am2.html

section 3 will help get you on the right track.

hope that helps a little



Gyro

ps; sorry for butting in SLINK
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post #1334 of 12343
Quote:
Originally Posted by Gyro View Post
No it' the exact opposite, you have to find out what each component will do on it's own first, then there is no guessing
But that's impossible. No component can run on it's own. It only runs as part of a complete system. The abilities of a component are clearly dependent upon the interactions with other components. How else would you explain this:

Quote:
So although your 300MHz mobo is apparently able to run with a 1500MHz CPU, it behaves completely differently with same CPU @ 3000MHz and falls over. Is this a limitation of the board or the CPU given that the mobo has shown that it can run @ 300MHz and the CPU has also shown that it can run @ 3000MHz?
post #1335 of 12343
Thread Starter 
well it is a fairly simple concept to grasp. We can water it down for you as much as it takes for you to grasp but the bottom line is knowing your mobo's limits will help inevitably when it comes to knowing what all your options are for overclocking your system as a whole.

Example you have a cpu w/a locked multiplier at 11 but if you are able to run a higher fsb on your mobo then you can run a multi of 10 or 9 and use a different ram divider to run your ram at a happy spd for a more stable overclock.

This is after all OCN and I don't think your going to be able to convince any one here who has any time under their belt w/overclocking that it does no good to know your systems limits. If you know your mobo limit you can then find different multies and fsb's to work with when trying to come up w/your max stable overclocks. Less beating my head against a wall to get my point accross I don't know any other way to help you understand then to agree w/what has already clearly been pointed out to you. Read the oc guides if for nothing else other then to be able to say that you read/understand before you put forth a valid argument but only after trying to apply the therories in the guides against your own theories.

Hope this helps,

N2G

Quote:
Originally Posted by AllenG View Post
i wouldnt mess with the rig your on now, it works with the hardware it has and its stable, i'd clone my boot drive, leave one copy with the 5400 rig... put one in the phenom rig and call MS to revalidate on the new board, when they ask you if anything in the system has been changed; tell them the hard drive and nothing else. They WILL give you an activation code, no questions asked so long as your key is legit. I have to do this all the time at work when people come in and need mobos or hard drives replaced.

Those temps are HIGH for stock clock, sounds like you need a tad less juice i'd try 1.0-1.15 or whatever is after 1.1... go down one setting, two at the most at a time. Or say screw it, rock those temps and push that thing to 3.7 or better. LOL!
well I am able to boot into windows etc etc. Now every time I power down my system it won't post as normal like the other mobo would. So I have to go through a reset and force post w/F1 key. I will call ASUS today and make sure that I don't have a defective mobo. Everytime I have to force the post I get the CMOS Checksome error msg. and if I go into bios and make static changes then the system will not repost. I can flash the bios and it will post and then I can just hit F1 to bypass and boot into windows but everytime I go into bios or power the system off then it does not want to post again.
Edited by N2Gaming - 3/17/09 at 12:48pm
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post #1336 of 12343
Thread Starter 
NVM sorry for the double post.
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post #1337 of 12343
Quote:
Originally Posted by pswfps View Post
But that's impossible. No component can run on it's own. It only runs as part of a complete system. The abilities of a component are clearly dependent upon the interactions with other components. How else would you explain this:
you don't run them on there own.

"you must isolate each part, finding its limits while keeping all other parts at or below their default speeds."

it's all in the guide


Gyro
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post #1338 of 12343
Quote:
Originally Posted by pswfps View Post
Yeah, got ya. Seems to me that you have to take the system as a whole unit because the individual components seem to behave differently depending on the other components they're interacting with.

So although your 300MHz mobo is apparently able to run with a 1500MHz CPU, it behaves completely differently with same CPU @ 3000MHz and falls over. Is this a limitation of the board or the CPU given that the mobo has shown that it can run @ 300MHz and the CPU has also shown that it can run @ 3000MHz? How can you tell?
Well, we're getting a bit off-topic here, but I'm sure it's acceptable banter. The method is ~ as follows:
  1. Underclock CPU and RAM as low as possible (loosen RAM timings as well), and increment the FSB until it gets unstable.
  2. Overvolt the FSB as much you are comfortable, but keep it cool enough. See how much stability you can gain thru this. (Note that stability is lost thru overheating.)
  3. Decrease the CPU->NB multiplier, etc. to see what your mobo can do. (Mine couldn't do much more than 300 MHz regardless of voltage/mult. etc. It just didn't want to.)
  4. Now you should know your mobo/FSB limitations. Drop your FSB back down to 200 MHz (as a base for testing CPU). Leave your RAM as underclocked as it gets. Crank the CPU multiplier as high as it goes. Test for stability (should be fine at 200 MHz FSB and with underclocked RAM). Now increment the FSB bit by bit til it gets unstable. Then overvolt the CPU core ("vcore") as you are comfortable with, and keep the CPU well-cooled. (Always monitor temperatures.)
  5. Now you should know the limitations of both your mobo and your CPU. Drop your FSB back to stock 200 MHz, leaving your CPU mult all the way up. Now you have to test multiple configurations of your RAM.
  6. Basically, you set your RAM at stock and see how high you can push the FSB before the system goes unstable. Hopefully your CPU can out-clock your RAM.
  7. When your RAM goes unstable, try overvolting it to regain stability. Keep it cooled. Don't go too far past RAM's intended voltage (should be printed on RAM or it's original packaging somewhere).
  8. When you've volted the RAM as far as you're comfortable doing so, you can try to loosen the timings, or to decrease the RAM speed setting (i.e. from 800 to 667).
  9. Final note: any time you have overvolted something, try to see how low you can get the voltage while keeping it stable. This helps to preserve the longevity of the parts, and keep things cooler. Don't forget to try different CPU multiplier settings, as they affect the "RAM divider".

Did THAT answer your question? ;-P
Edited by Slink - 3/17/09 at 1:51pm
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post #1339 of 12343
Quote:
Originally Posted by N2Gaming View Post
Now every time I power down my system it won't post as normal like the other mobo would. So I have to go through a reset and force post w/F1 key. I will call ASUS today and make sure that I don't have a defective mobo. Everytime I have to force the post I get the CMOS Checksome error msg. and if I go into bios and make static changes then the system will not repost. I can flash the bios and it will post and then I can just hit F1 to bypass and boot into windows but everytime I go into bios or power the system off then it does not want to post again.
N2Gaming, are you able to reproduce this issues with a non-phenom processor?

Pswfps, also take note that even though you may be able to overclock a certain part (ex. memory), that doesn't mean you'll be able to run that same overclock again after you have started overclocking your processor. Since CPU speed is king, I typically like to concentrate on that first.

Good luck guys
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post #1340 of 12343
Thread Starter 
Quote:
Originally Posted by thlnk3r View Post
N2Gaming, are you able to reproduce this issues with a non-phenom processor?

Good luck guys
As a matter of fact no. I only started getting this problem with the Ph II. It is a problem with the bios and hardware settings and some cmos checksum prolly not saving properly or something like that. I reverted back to the 2101 bios and am ATM running 3dmark06 to see how it compares to my x2 5400+ cpu.

I have the hardware limping along ATM with a 3600Ghz oc on the cpu at 1.35v on the cpu. I am running my 9800GT OC 512Mb in the PCIe x16 slot #2 becuase I removed the battery to check the voltage to make sure that was not an issue.

I will post my 3dmark06 scores here in a minute. I'm not so sure they will be much better then the x2 5400+ but my clock spds are better. with 4 cores to boot.

Sorry I had to edit the cpu Mhz listed above it's at 3600Mhz not 3800Mhz

BTW my 3dmark06 first score is 13520
Edited by N2Gaming - 3/17/09 at 2:31pm
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