amd x6 1100T unstable at 3.5 Ghz?

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Dec 30, 2004
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The max safe temp for that CPU is 62. If you are already hitting 60, you don't want to start messing with voltage until you get better cooling.

this is also a good point, but I'm personally OK with 70 since some of the dual core chips on same architecture design are 70.
 
Dec 30, 2004
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On this subject i have read phenom II's specially Thubans are really good OC'ers. And specially with Multiplier. I am gonna work with FSB as i had no success with setting NB speed and voltage and see what happens

NB overclocking is basically pointless. Leave the HyperTransport alone.

CPU-NB on the other hand, yes this is worthwhile. Start with just the core frequency though until you get that to the max, then turn off that OC and swap to the CPU-NB

you probably already know this and are referring to the CPU-NB/L3 cache.

definitely start with one variable at a time. That's the only way to narrow it down. If you add 3 variables, you don't know which change it was that causes instability.

Start with multiplier overclocking, IE keep the bus at 200mhz and just bump the multiplier.

To give you an idea, I needed either 1.44v or 1.4725v to hit 4ghz on my Ph2-965. I gave 1.3v IIRC to the CPU-NB to hit 2.6ghz.

You can use PhenomMSRTweaker to do overclocking in software very easily.
I didn't use that to do the CPU-NB overclcoking, I did that exclusively in the BIOS. But being able to change the cores inside windows made overclocking much easier.
 
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az09

Member
Feb 25, 2015
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NB overclocking is basically pointless. Leave the HyperTransport alone.

CPU-NB on the other hand, yes this is worthwhile. Start with just the core frequency though until you get that to the max, then turn off that OC and swap to the CPU-NB

you probably already know this and are referring to the CPU-NB/L3 cache.

definitely start with one variable at a time. That's the only way to narrow it down. If you add 3 variables, you don't know which change it was that causes instability.

Start with multiplier overclocking, IE keep the bus at 200mhz and just bump the multiplier.

To give you an idea, I needed either 1.44v or 1.4725v to hit 4ghz on my Ph2-965. I gave 1.3v IIRC to the CPU-NB to hit 2.6ghz.

You can use PhenomMSRTweaker to do overclocking in software very easily.
I didn't use that to do the CPU-NB overclcoking, I did that exclusively in the BIOS. But being able to change the cores inside windows made overclocking much easier.
THanks man you were really help ful.

Couple questions.

1) I meant to say that i am overclocking CPU-NB not just NB.

and what you mean by this
"Start with just the core frequency though until you get that to the max, then turn off that OC and swap to the CPU-NB"
select CPU-NB frequency to my core frequency? which is 3.7 ghz? im confused also with the last part. what u mean by swap it

2)How much VOltage should i set to hit 3.7 ghz. i have tried hitting 3.7 ghz via voltage 1.3775 and CPU-NB to 2.4 ghz CPU n-b volt to 1.175v but IBT fails within 5 mins :(.

3) My Core voltage in CPU-z fluctuates under load (not so much, but fluctuates from 1.30 to 1.34 so forth)? :S anyone have any explanation to why is that happening?

I also have 4 sticks of RAM if that might be acaffecting my OC

and oh my temperature while trying to hit 3.7 ghz was still at 55C maximum
 
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fixbsod

Senior member
Jan 25, 2012
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qft

I'd hesitate to label any chip as having a safe overclock range that "everybody else" gets.
typically people brag about their success, the failures go unnoticed.
Often people will just run a bench or two and the system isn't really ever stable.
 

schmuckley

Platinum Member
Aug 18, 2011
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az09

Member
Feb 25, 2015
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Can some one tell me how do i overclock my RAM to see if that make my System stable at 3.7 Ghz.

Currently my RAM sticks are running at 5-5-5-18 1.8v 2 sticks and other 2's are 5-5-5-15 v 2.1 Same brands ( i think Mobo auto set to lowest one or somethimg?)
 

Reynod

Member
Mar 26, 2006
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Try booting with just two sticks to see if one pair at the existing setting are ok - just to see if one pair perform better at the existing settings.

Then relax the timings slightly on all when you put them back in to see if you can get all four to run ok.

Use the search function at the top of the forum area under memory and there should be plenty of similar topics you can glean some help from.

Good luck. :)