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Athlon II X2 220 OC help? - Page 2

post #11 of 41
Thread Starter 
The Dolphin emulator, it seems to be heavily affected by HT and CPU-NB speeds. As it is, this processor can't run even the lightest of games at full speed unless overclocked as hard as I have, so I need this overclock.
post #12 of 41
Quote:
Originally Posted by kinkinkijkin View Post

The Dolphin emulator, it seems to be heavily affected by HT and CPU-NB speeds. As it is, this processor can't run even the lightest of games at full speed unless overclocked as hard as I have, so I need this overclock.

I'm just curious because I have never heard of anyone saturating the Hyper Transport Link on an AM3 Athlon II x2 rolleyes.gif

What exactly do you believe the Hyper Transport Link does (don't cheat, use your own knowledge)?

How are you determining it is saturated at 2GHz?

We can all agree that higher CPU-NB clock reduces memory latency.
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post #13 of 41
Thread Starter 
To be completely honest? I don't exactly remember what it does. I just know that, from my own testing, I've uncovered that increasing it's speed causes a good speedup in Dolphin. I tested with the official Dolphin benchmark, and sent the results (which you don't really need to worry about) to a person who was interested in them, since I no longer had a place on the main forums for the software to post the results publicly. And, honestly, as long as I know what changing it's speed affects, I don't need to know what it does.
post #14 of 41
Quote:
Originally Posted by kinkinkijkin View Post

To be completely honest? I don't exactly remember what it does. I just know that, from my own testing, I've uncovered that increasing it's speed causes a good speedup in Dolphin. I tested with the official Dolphin benchmark, and sent the results (which you don't really need to worry about) to a person who was interested in them, since I no longer had a place on the main forums for the software to post the results publicly. And, honestly, as long as I know what changing it's speed affects, I don't need to know what it does.

It connects the CPU to the Northbridge, and I would gander that you are having a placebo effect, as even the 8 core FX cannot saturate it biggrin.gif
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post #15 of 41
If you want to push further, In BIOS, look for the CHIPSET voltage control. (sometimes called "chip" voltage, sometimes called NB-Voltage, not to be confused with CPU-NB). By bumping this up a notch you may be able to achieve higher stable reference clocks, and overclock further. There's usually room to over-volt the chip-set by about 0.1V without harm if you have a good heatsink on the chipset and good case airflow.


The HT link performance scaling is very unusual, bordering on hard to believe, though I have seen strange anomalies while performance tuning and testing before that pointed to performance scaling related to ratios rather than final speeds as the source of performance.
     
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post #16 of 41
Thread Starter 
>good heatsink on the chipset
>good airflow

ahahahahahahahah

No, I don't, so I'm largely out of luck on this one. Unfortunately, I've also decided to abandon continuation on this build, so I can't experience a day where my little Athlon II X2 performs with similar speeds to the Phenom II X4 it's based on.
post #17 of 41
OCN user Jason387 had his Athlon x2 clocked over 4GHz rather easily. He would be a good one to seek for advice.
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post #18 of 41
You gave up? First,bump up the CPU/NB(IMC) voltage to 1.3v. NBv up to 1.3v,HTT volts to 1.3v. You HAVE to lower your HTT and CPU/NB multipliers,as well as the RAM speed.Then raise your ref. clock. It does not matter what the multiplier is,the final speed is what matters.2600MHz CPU/NB and 2200MHZ HTT should be easily reachable.Chip should do 3.8GHz easily if it's a C3 revision.
Edited by Redwoodz - 4/3/14 at 8:47pm
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post #19 of 41
Quote:
Originally Posted by damric View Post

OCN user Jason387 had his Athlon x2 clocked over 4GHz rather easily. He would be a good one to seek for advice.
I'm here smile.gif. OP for starters, keep your ram at 1333Mhz at first. You may find it difficult to overclock with your ram already set to 1600Mhz. Now using stock voltage increase your cpu frequency until it crashes in p95 after 15mins. This is initial testing. I did get my Athlon II x2 to 4Ghz and ran p95 for over 9 hours. Every time to increase your FSB make sure to keep your cpu nb and ht link frequency as close to 2000Mhz as possible. First you will want to push your cpu frequency as far as possible and then try increasing your cpu nb frequency. Always leave HT Link as close to stock as possible, increasing HT link beyond 2100Mhz may actually give you reduced performance. If you have any questions do let us know smile.gif
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post #20 of 41
Thread Starter 
Well, my ram only supports 1333. It has a little quirk which causes it to not work at all if it's too far below, or too far above.

I'll try these things later, right now I'm still eating. I'll edit this post if nobody posts after me, with results.
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