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On 23/01/13 17:09, Nilesh Govindrajan wrote: |
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> On Wednesday 23 January 2013 07:52:03 PM IST, Nikos Chantziaras wrote: |
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>> [...] |
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>> In my experience, most of the time you can overclock. The issue is |
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>> with the user not knowing exactly how to do it. You need to |
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>> understand a few things and how they affect each other. It's not just |
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>> a knob you can turn. |
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> |
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> That pretty much applies to me. I don't know much about hardware stuff. |
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> Regarding your 1 Ghz overclock, you probably have good components in |
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> terms of RAM & SMPS. |
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> When I bought this rig in 2008, I knew nothing about good components, |
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> blindly trusted local vendor... also internet shopping wasn't advanced |
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> here. |
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> So pretty much substandard components. |
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The part that's really important is the mainboard. RAM doesn't matter. |
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In my case, I had pretty basic 800MHz DDR2 RAM. Raising the FSB would |
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bring it above that, so I changed the DRAM ratio to 1:1, and the RAM |
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then ran at only 600Mhz. |
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That was the starting point to rule out RAM problems. After that, I |
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raised FSB but kept the VCore constant until I hit the first |
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instabilities. When that happened, I raised VCore a bit. Rinse and |
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repeat, until the VCore was still below the maximum recommendation by |
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Intel. That happened at 3.4GHz (378MHz FSB * 9 CPU multiplier = 3402MHz |
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CPU clock.) The E6600 CPU I got was an average sample. Others were |
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running it at 3.6GHz (or even higher with water cooling.) |
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This was a process that took about 3 days to complete (needs a lot of |
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stability testing.) The good thing about those older CPUs was that the |
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performance boost I got by OCing wasn't just scaling linearly with the |
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CPU frequency. It was scaling *better* than that, because raising the |
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FSB also made the mainboard itself perform better and with lower latencies. |
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> Now that I know stuff, I'm thinking of assembling my own AMD FX8350 rig |
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> soon by buying components from the web. |
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> So, let's close this topic :-) |
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As I said above, the mainboard is really the only important factor. |
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