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AMD Zosma 960T/1600T/1605T CPU Club - Page 59

post #581 of 2790
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post #582 of 2790
You know guys, just when you think you figured it all out, something else comes along and says, no.

So, I figured just to take a break from the 4 core overclock, I'd take a look at how far I can push 2 cores.

My results kinda left my jaw dropping.

It's not so much for the max core speed, the processor does not seem to do higher than 4.6ghz, regardless of what I throw at it. Note: I tried up to 1.625V. I wasn't going to risk anything higher than that, but honestly, core temps never peaked higher than 25C, lol.

What interested me most was the fact that it did up to 4.1ghz on stock voltage! I realized then, or so I thought, that is was obvious, it needs about half what it would with 4 cores.

What really surprised me was when I enabled the 3rd core, running in tri core config it required the SAME low voltage. Now, I'm thinking to myself, well that can't be right. The 4th core cannot be causing an increase in voltage unless it's not functioning properly.

So, I'm in the process of testing the 4th core and seeing what it hits as it's max speed in tri config.

I'm able to hit on dual and tri 4.5ghz @ 1.55v's.

So...let's see where it goes. i have 2 other cores disabled that i can attempt to use.

Also, something else I noticed while reading some documentation for amd overdrive (yeah i was bored). I there performance guide, it states the use of acc with phenom ii processors. I thought perhaps it was a typo, but it does clearly state it.

I'm now just wondering if perhaps it might actually do something.

I did notice while mucking around with it very briefly and using hyperpi as a guage, that when one core is laggin behind (seriously behind), decreasing the value seemed to speed it up and make it complete faster...not sure yet, trying to reproduce it.

One step at a time. Seems I always find more and more to muck around with, lol.
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post #583 of 2790
Quote:
Originally Posted by ozzy983 View Post

You know guys, just when you think you figured it all out, something else comes along and says, no.
So, I figured just to take a break from the 4 core overclock, I'd take a look at how far I can push 2 cores.
My results kinda left my jaw dropping.
It's not so much for the max core speed, the processor does not seem to do higher than 4.6ghz, regardless of what I throw at it. Note: I tried up to 1.625V. I wasn't going to risk anything higher than that, but honestly, core temps never peaked higher than 25C, lol.
What interested me most was the fact that it did up to 4.1ghz on stock voltage! I realized then, or so I thought, that is was obvious, it needs about half what it would with 4 cores.
What really surprised me was when I enabled the 3rd core, running in tri core config it required the SAME low voltage. Now, I'm thinking to myself, well that can't be right. The 4th core cannot be causing an increase in voltage unless it's not functioning properly.
So, I'm in the process of testing the 4th core and seeing what it hits as it's max speed in tri config.
I'm able to hit on dual and tri 4.5ghz @ 1.55v's.
So...let's see where it goes. i have 2 other cores disabled that i can attempt to use.
Also, something else I noticed while reading some documentation for amd overdrive (yeah i was bored). I there performance guide, it states the use of acc with phenom ii processors. I thought perhaps it was a typo, but it does clearly state it.
I'm now just wondering if perhaps it might actually do something.
...

Amazing XD I could try that too I guess seeing as my cooler is good at keeping the x4 cool. Also, what about the ACC and phenom 2s? Oh...I guess that AMD wouldn't want you to use it seeing as they themselves locked those cores ^^

side note: ran into my first BSOD since i stabilized 3.6Ghz. I believe it's related to having the ram timings on 5-5-5-20 1T but as the BSOD has very very little info that I could understand, I can not be sure.
post #584 of 2790
Quote:
Originally Posted by BadRobot View Post

Amazing XD I could try that too I guess seeing as my cooler is good at keeping the x4 cool. Also, what about the ACC and phenom 2s? Oh...I guess that AMD wouldn't want you to use it seeing as they themselves locked those cores ^^
side note: ran into my first BSOD since i stabilized 3.6Ghz. I believe it's related to having the ram timings on 5-5-5-20 1T but as the BSOD has very very little info that I could understand, I can not be sure.

Note the code that appears when windows restarts when you get a bsod. It can be referenced to see where the problem lies.

Also, sometimes, when you lower latency, you have to increase the memory voltage slightly.

As far as ACC goes, yeah, that was AMD's stance originally, and when people first started unlocking cores they were mad. They even had the mobo makers remove the firmware that did it (hence the hybrid settings), but mobo makers saw money in not completely removing it.

Now, I'm pretty sure AMD has accepted this fact and is in fact, working to use it to their advantage. It keeps older processor models selling.

This is why the 960T is so popular even in systems that could easily handle 6 cores. 1 it's half the price and 2) for half the price, you take a gamble and might get 6 cores. From what we've seen in this thread, getting 6 cores happen more often than not.

Meanwhile, all those "rich kids" continue to buy their 6 cores. Win-win for amd. smile.gif

As for the disabling of cores, I haven't planned on doing it, but was just bored. My results were interesting. Working on the 4th core right now, will post some finding when i get done with it.
Edited by ozzy983 - 2/19/12 at 11:56am
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post #585 of 2790
True dat. Buy this core, take a gamble, win if its 6 core and if not you still have an amazing OC'ing cpu. That's what I did after looking at some of the CPUs available.
My voltages for the DRAM have been on 1.5V since I started OC'ing. I just set everything up CL timings, vCore, NB, and HTL ^^ so far it hasn't BSOD'ed yet as opposed to before (when it was all set to auto except CL timings of 10-10-10-26 and vCore was set to 1.35V). Now my bios an X6 1600T:
3.5Ghz 200x17.5 @1.4V, HTL 2600 Mhz, NB 3000 Mhz, CL 10-10-10-26-20-1T

side note: AMD Overdrive seems to have a great stability test.
Edited by BadRobot - 2/19/12 at 12:41pm
post #586 of 2790
Ram speed? I've tried 3 sets of ram and cannot get past 1808mhz. (1) Kingston HyperX 1600 - 1696mhz, (2) G.Skill Ripjaw X 2133- 1808mhz, Samsung 32nm 1600- 1776mhz. I've spent hours altering timings, voltage, cpu-nb voltage, nb, htt. Could it be a mobo issue or a subpar IMC. I have a up to date bios and board is supposed to be 1866 capable. Wondering if anyone else has had this trouble with their 960T. Have tried in 4 core and unlocked 6 core. Any thoughts? Have gotten excellent results regarding most other areas of overclocking this chip except corresponding ram speed.
    
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post #587 of 2790
Quote:
Originally Posted by hotrod717 View Post

Ram speed? I've tried 3 sets of ram and cannot get past 1808mhz. (1) Kingston HyperX 1600 - 1696mhz, (2) G.Skill Ripjaw X 2133- 1808mhz, Samsung 32nm 1600- 1776mhz. I've spent hours altering timings, voltage, cpu-nb voltage, nb, htt. Could it be a mobo issue or a subpar IMC. I have a up to date bios and board is supposed to be 1866 capable. Wondering if anyone else has had this trouble with their 960T. Have tried in 4 core and unlocked 6 core. Any thoughts? Have gotten excellent results regarding most other areas of overclocking this chip except corresponding ram speed.

My 960T (or motherboard) also did not quite like higher frequencies but I have no idea why it happens. I unfortunately don't have 1866 Mhz capable ram at the moment so I can't test if reach it.

side note: my board is rated for 2000 Mhz OC on the ram
Edited by BadRobot - 2/19/12 at 1:08pm
post #588 of 2790
Quote:
Originally Posted by hotrod717 View Post

Ram speed? I've tried 3 sets of ram and cannot get past 1808mhz. (1) Kingston HyperX 1600 - 1696mhz, (2) G.Skill Ripjaw X 2133- 1808mhz, Samsung 32nm 1600- 1776mhz. I've spent hours altering timings, voltage, cpu-nb voltage, nb, htt. Could it be a mobo issue or a subpar IMC. I have a up to date bios and board is supposed to be 1866 capable. Wondering if anyone else has had this trouble with their 960T. Have tried in 4 core and unlocked 6 core. Any thoughts? Have gotten excellent results regarding most other areas of overclocking this chip except corresponding ram speed.

It's not a subpar IMC it's the IMC's limitations. The standard phenom ii's were rated for 1333mhz; the turban cores are rated for 1600mhz ram. Anything higher than that is NOT guaranteed and is, quite frankly pointless in all real world applications. Only your benchmarks will notice a difference.

Just because the board supports something, doesn't mean the rest of the technology does or is even up to date enough to support it.

My gigaybte supports ddr2 speed up to 1333, but in reality, nothing comes even close to it. There are select ram modules that CAN hit it, but the ddr2 IMC is limited to 1066, anything else can cause issues.
Edited by ozzy983 - 2/19/12 at 1:10pm
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post #589 of 2790
Quote:
Originally Posted by hotrod717 View Post

Ram speed? I've tried 3 sets of ram and cannot get past 1808mhz. (1) Kingston HyperX 1600 - 1696mhz, (2) G.Skill Ripjaw X 2133- 1808mhz, Samsung 32nm 1600- 1776mhz. I've spent hours altering timings, voltage, cpu-nb voltage, nb, htt. Could it be a mobo issue or a subpar IMC. I have a up to date bios and board is supposed to be 1866 capable. Wondering if anyone else has had this trouble with their 960T. Have tried in 4 core and unlocked 6 core. Any thoughts? Have gotten excellent results regarding most other areas of overclocking this chip except corresponding ram speed.

1800 is nice and more than enough
I have some Ripjaws X 2133 (8-9-8-24) too, and max. I hit was 1920 8-8-8-24. Sabertooth mobo
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post #590 of 2790
I'm using AOD's sensor readings while p95 is blend testing the unlocked 960t and it seems to be reading my temperature setting wrong. It says my MB temp is 0 and my CPU hasn't gone over 36*C during the test even though CPUID says its at 41*C. It doesn't sense the vDroop as well but it does show me the voltage I set in the bios instead of a slightly lower reading.
Still, great tool to test the stability of the system and change settings without rebooting.
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