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Discussion Starter #1
I have the phenom 2 945 c2 chip and i have hit a wall in my overclocks a mere 3.3 from 3.0, i followed the advice of some of the members and ran memtest and i got no errors on my ram (an all night run of memtest) the idle temps at 3.3 is 35c should i add volts to the cpu/NB or the ram?

Any advice will be taken into consideration
 

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Post the main page, memory page and SPD page of CPU-Z. You can do it in one screenshot if you run 3 instances of CPU-Z.
 

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Discussion Starter #3
Thanks i'll get on it my net is being a real *** right now...will post asap
 

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This should be interesting since you have basically the same chip as I do. I have an unlocked 545 which is basically a 945. I'm at 3.37 and I plan on staying right where I'm at, but I would like to see how high they go. Ram speed or HT Link speed might be holding you back right now (if either is too high).
 

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Quote:

Originally Posted by amd-dude View Post
I have the phenom 2 945 c2 chip and i have hit a wall in my overclocks a mere 3.3 from 3.0, i followed the advice of some of the members and ran memtest and i got no errors on my ram (an all night run of memtest) the idle temps at 3.3 is 35c should i add volts to the cpu/NB or the ram?

Any advice will be taken into consideration
How long have you had this system?
Who built it for you?

I find it utterly impossible to just overclock 300mhz (unless its a videocard///which still can be done)
Let me find a link to your bios real quick...I'm about to cry

What BIOS verion, the 5/18/10 right?
http://www.msi.com/index.php?func=do...1837&type=bios

* AMD Cool N' Quiet--->disabled
* CPU Fsb freq--->230mhz...might different with yours, depend on your CPU though
* CPU Ratio--->17.5
* CPU-NB Ratio--->x9
* EC Firmware--->normal
* Advanced Clock calibration--->disabled
* Auto Overclock--->disabled
* multi-step OC booster--->disabled
* HT link control--->x9
* vcore--->1,55v
* vdimm--->1,84v
* NB voltage--->1,2v
* CPU-NB voltage--->1,33v

This is a little from MSI Forums
http://forum-en.msi.com/index.php?to...3357#msg973357
 

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It should go higher. Probably something like HT Link speed holding things back at the moment. We'll know when he posts those screenshots. A lot of people think that you just turn up the clock and forget everything else.
 

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Increasing NB voltage to 1.2 or 1.3 might help.
 

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As soon as OP updates with CPU-Z screenshots we should have more information. Blindly raising voltages is not the answer. However, a bump of CPU-NB up to 1.2 to 1.25 is usually OK (mine is at 1.22 right now).
 

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Discussion Starter #10
Thanks guys...unfortunatly my net is still ****in up...developing country here sorry but i'll take various screenshots with different overclocks...this one is at PROBN4LYFE: my fsb is at 200mhz stock and all of the ACC etc are disabled and similar to what you posted...i will try to match the settings that you showed there including the voltages and see if i can go higher.

I will go to a friends house later today and upload the screenshots that u guys requested..THANKS ALOT
 

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I have the exact same chip and I got it to 3.9 stable. Now that its summer I keep it at 3.75 24/7. You should definitely be able to hit 3.4 even without raising voltage.

Cooling helps. When i had a OCZ Vendetta heatsink I could only get it to 3.6 stable. Anything over would crash during prime.

Half decent Memory helps too. Try lowering the ratio to 1066 speeds. It may help stability

Keep the HT Link around 2000. I was able to raise my NB to 2600 with a little bit more voltage.

Also try updating your bios to latest one
 

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You don't have to make massive jumps in vcore. Just remember that 1.55V is the absolute max you should go, 1.5 is probably for max safety (thats my limit on this pc). I just went through this the other day with a 955C2. I got stuck at 3.5Ghz. What got me moving again was dropping my ram speeds from 1600 back to 1333, the CPU was much more stable.

Once you get the CPU stable you can get the ram back to speed or tighter timings @ lower speed. So yeah, ram was the deciding factor in my being able to OC this chip. You should be able to get that thing up to 3.5ghz at near stock voltages. 1.55v is for attempting a 4+ ghz oc, and you shouldn't try that without a good cooler, and definitely shouldn't just jump from stock to 1.55v. Overclock in small increments, go up 1 multiplier.. see if its stable, if not try going up one notch of voltage etc.
 

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Discussion Starter #15
Thanks again guys for the advice but I think i really need to upgrade my BIOS...the other day i was trying some of the settings u guys gave me...keeping the CPU-NB speed at around 2000mhz i.e. dropped the cpu-nb multiplier to 9 with a fsb*cpu multiplier of 230x15 to try to get to 3.4ghz when i saved and restarted i got a "Bad BIOS Checksum error" i almost crapped my pants but never the less i got it working again...now i'll try and step down the ram speed ratio to around 1066 as you guys suggested....will get back to you all and let u know how it went.
 

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Any way that you can post those screenshots? The NB frequency can be higher than 2000. It's the HT Link speed that should stay around 2000. Definitely drop the ram down a notch, but those screenshots would help us a lot. Use Snipping Tool in Windows 7, save to a jpg file and then Go Advanced while posting, Manage Attachments and Upload. Done.
 

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That just means the overclock didn't work, don't fret

Messin with the nb ht and memory aren't gunna see you any real gains. They also aren't going to affect stability at such a small overclock

Just turn up the vcore to 1.5v and bump the cpu multi up 1 until it won't boot into the OS

Then start stressin the sucker

Don't be afraid of the voltage, it will not hurt your chip. As long as you're under 55c at load, you're good
 

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NB Frequency has to be greater than or equal to HT Link speed. Set HT Link speed to 1800 and NB frequency can stay at stock (2000).
 

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Not all silicon is created equal.
 

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Quote:

Originally Posted by amd-dude View Post
Thanks guys...unfortunatly my net is still ****in up...developing country here sorry but i'll take various screenshots with different overclocks...this one is at PROBN4LYFE: my fsb is at 200mhz stock and all of the ACC etc are disabled and similar to what you posted...i will try to match the settings that you showed there including the voltages and see if i can go higher.

I will go to a friends house later today and upload the screenshots that u guys requested..THANKS ALOT
If you can post on OCN, you don't need to go anywhere. Just click on the "Manage Attachment" button. You can upload directly from your PC.
LL
 
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