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Overclocking 955be C3 - Page 2

post #11 of 21
Thread Starter 
Same here but what i find odd is a few months back i ran prime 95 for an hour at 4ghz and it was stable till i got around an hour and half. Now it crashes within a few secs its like hit and miss. Just like my cpu/nb some times i can boot at 2400 and others its just gives me an error message. would changing my ram timings give me a better result? or am i dreaming lol

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post #12 of 21
Quote:
Originally Posted by GHZ View Post

Same here but what i find odd is a few months back i ran prime 95 for an hour at 4ghz and it was stable till i got around an hour and half. Now it crashes within a few secs its like hit and miss. Just like my cpu/nb some times i can boot at 2400 and others its just gives me an error message. would changing my ram timings give me a better result? or am i dreaming lol

Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Are you keeping it below 55C? My chip actually can get stable at ~1.536v but my 212+ can't keep it below 55C therefore it crashes. I would really recommend just going for 3.8 and a NB of 2600. I'll even give you what my 965 is running stable at right now.

Frequency-3.8 Ghz
NB Frequency- 2600 Mhz
CPU Voltage- 1.456v
CPU/NB Voltage- 1.275v
NB Voltage- 1.115v

Yes, I did need to increase the NB voltage a few notches which most people don't have to do. My chip is a C3, it just has terrible ASIC quality lol
post #13 of 21
I could easily get mine at 4GHz stable with 1,425 but as time went on and I experimented (I got up to 4,5GHz under 1,55v~) it degraded a bit. Now I'm @ 17x225=3,825GHz and happy with it anyway.

Right now I'm in 1,44V btw.
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post #14 of 21
Thread Starter 
Quote:
Originally Posted by VitalShot View Post

Quote:
Originally Posted by GHZ View Post

Same here but what i find odd is a few months back i ran prime 95 for an hour at 4ghz and it was stable till i got around an hour and half. Now it crashes within a few secs its like hit and miss. Just like my cpu/nb some times i can boot at 2400 and others its just gives me an error message. would changing my ram timings give me a better result? or am i dreaming lol

Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Are you keeping it below 55C? My chip actually can get stable at ~1.536v but my 212+ can't keep it below 55C therefore it crashes. I would really recommend just going for 3.8 and a NB of 2600. I'll even give you what my 965 is running stable at right now.

Frequency-3.8 Ghz
NB Frequency- 2600 Mhz
CPU Voltage- 1.456v
CPU/NB Voltage- 1.275v
NB Voltage- 1.115v

Yes, I did need to increase the NB voltage a few notches which most people don't have to do. My chip is a C3, it just has terrible ASIC quality lol
Max temp were 47c at 1.50volts but for some reason it wont boot at 2400 even putting the the volts at 1.35 but i never touched the nb voltage.

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post #15 of 21
Quote:
Originally Posted by GHZ View Post

Max temp were 47c at 1.50volts but for some reason it wont boot at 2400 even putting the the volts at 1.35 but i never touched the nb voltage.

Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Try upping the NB Voltage to the value I gave you, after that see if it will boot up at 2600.

Is your HT Link at stock? Did you try to overclock with the FSB? I would recommend just doing the multiplier, no FSB for now.
post #16 of 21
Thread Starter 
Quote:
Originally Posted by VitalShot View Post

Quote:
Originally Posted by GHZ View Post

Max temp were 47c at 1.50volts but for some reason it wont boot at 2400 even putting the the volts at 1.35 but i never touched the nb voltage.

Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Try upping the NB Voltage to the value I gave you, after that see if it will boot up at 2600.

Is your HT Link at stock? Did you try to overclock with the FSB? I would recommend just doing the multiplier, no FSB for now.

it booted lol.. cpu/nb 1.26 nb 1.75 but i just an error running prime and when using amd's stressed test it rebooted with a 0003b error.. about to look it up and see what it means

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post #17 of 21
Quote:
Originally Posted by GHZ View Post

it booted lol.. cpu/nb 1.26 nb 1.75 but i just an error running prime and when using amd's stressed test it rebooted with a 0003b error.. about to look it up and see what it means

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It means increase Vcore. Looked it up for you =P

What is your CPU/NB Voltage set to. Also a NB voltage of 1.75 is abnormally high, I said 1.115. Lower it!
post #18 of 21
Thread Starter 
Quote:
Originally Posted by VitalShot View Post

Quote:
Originally Posted by GHZ View Post

it booted lol.. cpu/nb 1.26 nb 1.75 but i just an error running prime and when using amd's stressed test it rebooted with a 0003b error.. about to look it up and see what it means

Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

It means increase Vcore. Looked it up for you =P

What is your CPU/NB Voltage set to. Also a NB voltage of 1.75 is abnormally high, I said 1.115. Lower it!
Ya as soon as i rebooted i looked it up and being playing around. i ran prime 95 but it gave me an error so i started testing with amds software
4.0ghz 1.5v temp max 52 so far
cpu nb 2600 at 1.26v nb core 1.2v
stable so far going to run for another 14 mins then jump back to prime 95

Sent from my ASUS Transformer Pad TF700T using Tapatalk HD
post #19 of 21
Quote:
Originally Posted by GHZ View Post

Ya as soon as i rebooted i looked it up and being playing around. i ran prime 95 but it gave me an error so i started testing with amds software
4.0ghz 1.5v temp max 52 so far
cpu nb 2600 at 1.26v nb core 1.2v
stable so far going to run for another 14 mins then jump back to prime 95

Sent from my ASUS Transformer Pad TF700T using Tapatalk HD

Good luck, mine can't do 4Ghz stable until 1.536v like I said. My 212+ simply can't cope with that lol
post #20 of 21
Thread Starter 
thank you but its not that stable lol.. but for gaming it is and i was able to drop the cpu volts just alittle 1.488. Im pleased with it and thanks again for getting my cpu/nb higher been needing that

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