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BIOS Values?

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Okay i want to overclock my system for my 955. My motherboard is an Asus M4A79T Deluxe (with a broken 3 pin connector for the CPU fan :??:  ) and so far i have overclocked it to 3.71 Ghz semi-stable. The reason why it's semi-stable is that when i run the setting in prime 95 that says "Blend" it crashes and when i run the test called: "In Place Large FFT's" it works for hours on to count. That's a mystery to me..... but anyway i have some screenshots of my bios and please tell me what to enter in for the values. Also, i know that any kind of advanced clock calibration, even on auto, doesn't work.




Also when i put the CPU/NB frequency to 3200 mhz, my system crashes as well




plz help!!! i want to try for 4 ghz like all the i7's do but it may be that intel's are easier to overclock than AMD's.......i have a Zalman CNPS 9700 as my cooler

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Try running small FFT's, if it doesn't crash there i'm going guess it's your memory or something on the mobo and not the CPU.

I'm assuming the default memory is 1600mhz, whats the default cpu/NB link. Should be like 2600 or something right.

I would try lowering all those ratio's memory, nb, to be certain it's the cpu that's causing the crash.

I"m assuming your temps are good.

Well 60 is getting up there,

How did it do in small fft's?

try raising the CPU/NB frequency a little, you might also have to bump the voltage a little.

IS your memory at stock (should be).

If that doesn't work try lowering the ht link?

If it doesn't work lower the nb and the ht link

If you want you can try raising the ht link though I don't think I've ever heard of this stableing an OC.
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first of all, i dont know what's the stock NB frequency and/or the NB voltage so i'm afraid to mess with that

second of all, my memory SAYS 1600 mhz and that is supposedly supposed to be stock speed. But i have suspicions since few people on newegg say that they dont run @ stock speed

and finally HT link at 2600 mhz is maximum

Spread Spectrum his a method to "spread" a signal of a given bandwith, well alteast that's what I understand. why are you asking?

So I'm thinking memory or mobo because it seems your CPU is holding up.

The clock to memory ratio should be 1:4 (200mhz bus to 800mhz ram, remember x2 to get 1600), it might look different in your bios (under dram controller) try lowering it by one step. When you lower your mem speed you might have to lower your voltage too.

Google set values for your cpu and Nb you should be able to find them.

Maybe lower the ht link just too see, this really can't hurt your hardware .

i just turned spread spectrum on just for fun....i didn't really know what it did

i'll look for the ratio but i dont get ur "X2" part of ur description of memory ratio and speed

also, i just put my cpu at 1.5 volts instead of 1.6 for heat and it runs fine.....btw i accidentally left Prime 95 with the small FFT's while i played Crysis for an hour and a half before i realized it....haha, the temperature was 61 degrees

That's why small fft's are cool, anyway is the CPU stable at 3.7 and 1.5v?

The x2 is times two, in the dram controller it might say your memory speed is 800mhz well you know it's not, but remember it's double pumped so times two to get 1600mhz.

well it could be your ram or your NB, a lot of people mess with there nb to get a good OC, i'm trying to find a guide that explains this using a PII in detail but I can't.

Try turning down the ram, look at some of these configurations for an idea. BTW 4ghz is a lot to hit on a 955, so if you don't get there no worries 3.7 is plenty (especially if it's stable at 1.5v)

http://www.overclock.net/amd-cpus/499526-phenom-ii-x4-9...

After looking at some more oc's it seams that a 1.6 vcore is really high.

I'ts also not illegal to up your HT bus speed
Overclocking Expert

jeff77789 said:
Okay i want to overclock my system for my 955. My motherboard is an Asus M4A79T Deluxe (with a broken 3 pin connector for the CPU fan :??:  ) and so far i have overclocked it to 3.71 Ghz semi-stable. The reason why it's semi-stable is that when i run the setting in prime 95 that says "Blend" it crashes and when i run the test called: "In Place Large FFT's" it works for hours on to count. That's a mystery to me..... but anyway i have some screenshots of my bios and please tell me what to enter in for the values. Also, i know that any kind of advanced clock calibration, even on auto, doesn't work.

http://i758.photobucket.com/albums/xx229/jeff77789/IMG_9066.jpg
http://i758.photobucket.com/albums/xx229/jeff77789/IMG_9069.jpg

Also when i put the CPU/NB frequency to 3200 mhz, my system crashes as well

http://i758.photobucket.com/albums/xx229/jeff77789/IMG_9070.jpg


plz help!!! i want to try for 4 ghz like all the i7's do but it may be that intel's are easier to overclock than AMD's.......i have a Zalman CNPS 9700 as my cooler


First of all you have most of your values on AUTO... Do you think you will find stability without tweaking those values?

Brb, going to take some pics of my Bios to give you an idea of what you need ;) 

Here you go, try this :





forget about ACC, you dont need to touch any of those values, just make sure C1E and Cool n Quite are disabled....

Your CPU does not need 1.5v to operate at that clock, lower the voltage to at least 1.45/1.46v
Overclocking Expert

Well you cannot just leave EVERYTHING on "auto" and expect the board to pull a miracle... Hopefully he has the correct timings/frequency/ and voltage for his RAM .............
Overclocking Expert

jeff77789 said:
well how did u get the "Extreme Tuner" to show up on ur BIOS??? i only have an AI tuner :o  :o  :o  :o  :o 


My Bios is a bit different than yours, I have the Crosshair III Formula ;) 

Overclocking Authority

Quote:
The reason why it's semi-stable is that when i run the setting in prime 95 that says "Blend" it crashes and when i run the test called: "In Place Large FFT's" it works for hours on to count. That's a mystery to me..


Read the on screen instructions for P95.....IIRC, Small FFT's stresses CPU, large FFT's stresses memory, and "blend" stresses both....It should run 12-18 hours on any of the settings, whichever one is failing points to your problem.

Also, turn Spread Spectrum off. When you OC, it's recommended that you turn that off. It's only needed if you're having EMC problems, which most people don't have.

Your NB-CPU speed and HT-Link speed should be 2000mhz at stock speeds, but don't bother with them until you've got the rest of your OCs finalized. Make sure your NB freq. is equal to or higher than your HT link speed. Max they should go up to in stock voltage is 2200-2400mhz. NB freq= L3 cache's speed and HT Link speed= speed of your CPU's connection to the mobo. BTW most people hit a wall when their NB freq is around 2800-3000mhz, HT link can be kept at 2000mhz if you don't want to mess with it.

What RAM do you use? We can probably tell you the recommended timings and voltage for it.
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