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post #5921 of 9641
Quote:
Originally Posted by Crisao23 View Post
Parts arrived:

Does anyone knows something about CACAC AC 0946 ?

Is it a good 965 ?

Saw 0947, 0942 all over the net but not this one.

Creating a huge backup here before changing to the new computer.
Well week 46 of 2009 has produced some decent chips from my understanding... What are letters following that? What are the last 5 digits in the CPU'S serial Number? That will tell you what kind of CPU-NB You have. Really it will come down to how she clocks with your setup...
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post #5922 of 9641
Quote:
Originally Posted by Mastiffman View Post
Well week 46 of 2009 has produced some decent chips from my understanding... What are letters following that? What are the last 5 digits in the CPU'S serial Number? That will tell you what kind of CPU-NB You have. Really it will come down to how she clocks with your setup...
I'm at work right now but I'll post it as soon as possible. Thanks a lot for your help Mastiffman.
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post #5923 of 9641
Hello guys!

I think these are my final thoughts about overclocking my PII 945.

I have made a lot of tests (taking into considerations all of your precious advices - thanks a lot Mastiffman and Morheen!!! and others

So, what I have tried to do first is to follow these steps that Mastiffman sent me...:
1) finding my MAX HT Reference Clock which is 360 MHz
2) Max CPU frequency = the highest (unstable) frequency was 4005 MHz but with some ridiculous voltages so, I think the highest stable freq would be sth around 3.8 GHz but I prefer 3741 MHz (you'll find all the settings in a spreadsheet I've created below)
3) CPU-NB freq = highest was 2650 MHz (quite hard to stabilize this one - needs quite a lot of voltage)
4) RAM frequency = uff 1767 MHz (but you'll find my question about it below). What I can tell you that I personally think that memory limits my highest OC result (I don't know maybe it's a RAM itself or just weak IMC) So, highest stable was 1720 MHz
5) Lowest Stable Ram Timings = I have tried everything and no matter what it's only 7-7-7-20-27 1T (with RAM divider 1:3.33) and RAM speed 1720 MHz

Ok! So, here are the results:



And now please take a look at all these values and tell me what do you see

My main goal was to achieve the highest CPU-NB value and RAM frequency without some ridiculous voltages.

This is good - if you take a look at Multistep OC Booster cells and values, changing that changes everything.

Could someone explaing to me why I can run stable:
CPU = 3710 MHz
CPU-NB = 2650 MHz
RAM = 1767 (wow)


...but this was with Multistep OC Booster set to Mode 1
with so little voltage...

and need a lot of voltage to run stable:
CPU = 3741 MHz
CPU-NB = 2580 MHz
RAM = only 1720 MHz !!!


This is the thing that amazed me a lot! To run 3741 MHz - cold boot I needed much more voltage than to run 3710 MHz (but in Multistep OC booster set to Mode 1). Unfortunately I couldn't make a cold boot with this second setting but after my OS has loaded it all seemed to work just fine

Another question: is running CPU-NB = 1.44 V (under load) in everyday use is safe or I need to lower this value? (in Bios 1.39 V)

The toughest task for me was to stabilize or to find optimal value for CPU-NB frequency and voltage. What I have noticed is that is very important to keep these voltages as low as you can - IMC is in CPU yeah?... so, a temp of CPU raises up when you bump up CPU-NB voltage and that "prevents" to get higher OC (wow... didn't know that I am so smart )

For Mastiffman: my batch number is 90036 - I don't really know what this number indicates (is there any table or spreadsheet with batch numbers that are good for OC?)

ufff... so, now a few words from all experts and non experts - i will be very grateful if someone is capable to give me any additional (and useful of course advices and hints.
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post #5924 of 9641
pendrago- i have that same memory and mine runs at 1600 7-7-7-20-27-1t at 1.7v.
nevermind. followed the link. mine is gamer yours is viper
Edited by DrBrownfinger - 3/30/10 at 3:52pm
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post #5925 of 9641
So I get my replacement board today and install it. I Couldn't bench test it because everything is custom fitted to that board in the case and I sure as hell wasn't gonna pull it all out just for a test and guess what? Stuck on FF code. #$@%! All the lights come on, fans spin up and the H50 fan was even adjusting speed using PWM. No video and no usb power. Tested the video card in another machine. It still works like a charm. So I call MSI and spoke to a fellow named David. Nice guy and American so he was easy to talk to. Here's the funny part. He suggested that the BIOS was too young (below ver. 1.6)to run my CPU. I informed him the board was a ver. 1.1 so it should have shipped with at least 1.6 . He went "Oh yeah" Anyway MSI is gonna pay shipping both ways this time which is nice of them I guess, but three more weeks on the backup system. OH dear.
    
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post #5926 of 9641
Hello everyone!

I bought this board to begin dabbling in the fine art of overclocking but on newegg it didn't say anything about RAM voltage specs and being naive I went ahead and purchased some OCZ RAM that works at 1.65V vs the 1.5V the MoBo manual states. Is this going to be an issue or is it going to be as simple as setting the RAM voltage to 1.65V in the BIOS and continue working?

EDIT: RAM Model #: OCZ3P1333LV4GK
Edited by darkfall13 - 3/30/10 at 11:51pm
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post #5927 of 9641
Quote:
Originally Posted by darkfall13 View Post
Hello everyone!

I bought this board to begin dabbling in the fine art of overclocking but on newegg it didn't say anything about RAM voltage specs and being naive I went ahead and purchased some OCZ RAM that works at 1.65V vs the 1.5V the MoBo manual states. Is this going to be an issue or is it going to be as simple as setting the RAM voltage to 1.65V in the BIOS and continue working?
it should work. if you could add more info on your setup it would help. just go to upper left corner, quick links, user control panel, edit system. oh yeah, hello
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post #5928 of 9641
Quote:
Originally Posted by Mastiffman View Post
Well week 46 of 2009 has produced some decent chips from my understanding... What are letters following that? What are the last 5 digits in the CPU'S serial Number? That will tell you what kind of CPU-NB You have. Really it will come down to how she clocks with your setup...
CACAC AC 0946DPBW

Last 5 digits of serial number: 90433
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post #5929 of 9641
Quote:
Originally Posted by pendrago View Post
Hello guys!

I think these are my final thoughts about overclocking my PII 945.

I have made a lot of tests (taking into considerations all of your precious advices - thanks a lot Mastiffman and Morheen!!! and others

So, what I have tried to do first is to follow these steps that Mastiffman sent me...:

Another question: is running CPU-NB = 1.44 V (under load) in everyday use is safe or I need to lower this value? (in Bios 1.39 V)

The toughest task for me was to stabilize or to find optimal value for CPU-NB frequency and voltage. What I have noticed is that is very important to keep these voltages as low as you can - IMC is in CPU yeah?... so, a temp of CPU raises up when you bump up CPU-NB voltage and that "prevents" to get higher OC (wow... didn't know that I am so smart )

For Mastiffman: my batch number is 90036 - I don't really know what this number indicates (is there any table or spreadsheet with batch numbers that are good for OC?)

ufff... so, now a few words from all experts and non experts - i will be very grateful if someone is capable to give me any additional (and useful of course advices and hints.
Well the Closer to 90001 you get the Better the IMC... So I don't really understand what the main issue with the IMC is.... With a decent IMC and Good Ram one should be able to run around 2800 with 1800Mhz Ram @ CAS7+.... 90036 is the Die Cut number which means that was the number of cuts from the center of the Wafer! Batch number May be the Issue here thogh. Which is in the second Row, last 4 digits which will be letters...
One thing to remember is that you can create instability with to much voltage as well. Regardless of what some may say, Any specific OC will need a little time to Run a that speed for best results....

Quote:
Originally Posted by Rockr69 View Post
So I get my replacement board today and install it. I Couldn't bench test it because everything is custom fitted to that board in the case and I sure as hell wasn't gonna pull it all out just for a test and guess what? Stuck on FF code. #$@%! All the lights come on, fans spin up and the H50 fan was even adjusting speed using PWM. No video and no usb power. Tested the video card in another machine. It still works like a charm. So I call MSI and spoke to a fellow named David. Nice guy and American so he was easy to talk to. Here's the funny part. He suggested that the BIOS was too young (below ver. 1.6)to run my CPU. I informed him the board was a ver. 1.1 so it should have shipped with at least 1.6 . He went "Oh yeah" Anyway MSI is gonna pay shipping both ways this time which is nice of them I guess, but three more weeks on the backup system. OH dear.
Have you ever heard of ATI Cards Needing to be connected via D-Sub first to get the pciture and then disconnected and then use the DVI? This was a very weird for me. When I first got my AM3 System built, I put my 4870 in and it had no video. I did some reaserch before RMAing it and found out that if I did the previous, it had video. It actualyl ended up being a setting in my monitor. Having to do with digital settings of the inputs... Just a thought!

Quote:
Originally Posted by Crisao23 View Post
CACAC AC 0946DPBW

Last 5 digits of serial number: 90433
That should have a Decent IMC. like 2700-2850 Stable. maybe not with higher Ram Frequency's though!

TO ALL WHOM CARE:

One can reach the same Latency (Lower is better) with Medium Ram Freq, Lowering Timings and a Higher CPU-NB as Running Higher Ram Freq with Looser Timings and Lower CPU-NB..... Obviously Combining these to have High Ram Freq and CPU-NB with Lowest Timings would be Optimal!

It just really depends on the components as to what will be best for your situation.
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post #5930 of 9641
Quote:
Originally Posted by moorhen2 View Post
This is what i use 24/7 for 4.1ghz:This is just to give you an idea,for refference:
If i use cpu NB voltage instead of the vdd then I always fail on the windows startup screen...man am I tired of this stuff.
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