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Old 07-19-2007, 12:43 PM   #1
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Default How fast, and what do I need to OC my AMD3800+ x2 Dual Core

So, 939 socket is slowly disappearing (maybe)..

And I was going to just buy the best 939 socket out their, but someone recommened just OCing my current 3800+x2 Dual core instead.

Sooooo... First what do I need to OC my 3800+ to its fullest potential (Heatsink wise, im not going to buy a full watercooling kit)

And how fast would i be able to OC it to?

My specs

700Watt PSU
AMD Athalon 3800+ X2 Dual Core
LANPARTY UT NF4 SLI-DR Expert
Antec Performance One P180B (4 120mm Fans)
8800 GTS SuperClocked
2gigs DDR400
Raptor 150gig HDD
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Old 07-19-2007, 01:14 PM   #2
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

http://www.newegg.com/Product/Produc...82E16835185125

keeps my 3600+ AM2 cpu at 15c idle 38c load with at 1.41 volts from 1.30 volts and a 800mhz OC from 1.9 to 2.7ghz


also get some arctic silver 5 to put on it
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Old 07-19-2007, 01:28 PM   #3
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

so what do you think ill be able to OC mine to? 2.8ghz?
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Old 07-19-2007, 01:31 PM   #4
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

google 3800+ socket 939 OCing...you should find other peopls Overclocks. i doubt you will though becuase it is socket 939.. but you never know. maybe you got a good chip.
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Old 07-19-2007, 01:43 PM   #5
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

Well I can get mine to 2.8ghz it boots windows up but I don't keep it that way and I've never ran prime 95 to check if its stable or not.
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Old 07-19-2007, 01:51 PM   #6
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

Quote:
Originally Posted by CompMan View Post
Well I can get mine to 2.8ghz it boots windows up but I don't keep it that way and I've never ran prime 95 to check if its stable or not.
what do you have as a heatsink?
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Old 07-19-2007, 02:06 PM   #7
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

hows this heatsink look?

http://www.newegg.com/Product/Produc...82E16835118223
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Old 07-19-2007, 03:04 PM   #8
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

Here's an article in relation to your overclocking endeavors of the Athlon 64 3800+:

"Since the AMD processor, Athlon 64 X2 3800+, appears the slowest model in the dual-core processor product line from AMD, it will be of our primary interest in terms of its overclocking potential. To test the overclocking abilities of this processor we assembled the same testbed as we have just used for performance benchmarks, i.e. based on DFI NF4 Ultra-D mainboard. For CPU cooling we used a Thermaltake CL-P0200 air cooler.

The default processor clock frequency multiplier of our Athlon 64 X2 3800+ equals 10x, so the only thing you can do with it is to make it lower (due to Cool’n’Quiet support).

As a result the CPU can only be overclocked by increasing the clock generator frequency. In order to avoid being limited by the potential of the other system components, we locked the PCI and PCI Express bus frequencies at their nominal values for the entire test session, and the multiplier for Hyper-Transport bus was reduced to 4x.

The memory frequency was also set with a reduced divider value, which would guarantee that the DIMM modules would work for sure even when the clock generator frequency grows up.

During our tests we found the maximum clock generator frequency when the processor remained stable. It was 240MHz. To go beyond this limit we had to slightly increase the processor Vcore: we raised it to 1.45V. The resulting CPU frequency in this case made 2.4GHz.

So, during our overclocking experiments we managed to raise the frequency of our Athlon 64 X2 3800+ on Manchester core by 20%. I have to stress that it is not that much at all, as dual-core Athlon 64 X2 4800+ and Athlon 64 X2 4600+ processors work at exactly the same frequency. And the latter is based exactly on the same Manchester core. In other words, we managed to overclock our Athlon 64 X2 3800+ only to the level of Athlon 64 X2 4600+.

Looks like AMD doesn’t use the best cores for the youngest processors in its dual-core family. For example, when we tested Athlon 64 X2 4800+ processor, though this one was based on Toledo core, we managed to conquer the 2.7GHz bar.

In order to give you a better idea of how fast the overclocked Athlon 64 X2 3800+ actually is compared with the top AMD processors, we ran a few specific tests. We compared our today’s main hero against the Athlon 64 FX-57 and Athlon 64 X2 4800+. For a more illustrative result we set the memory at 200MHz in all benchmarks and adjusted its timings to 2-2-2-10.

The Athlon 64 X2 3800+ overclocked to 2.4GHz wasn't number one in all the benchmarks, but still gave impressive results. Although we have to admit that it nevertheless demonstrates very nice performance.

For example, in applications supporting multi-threading it manages to outpace Athlon 64 FX-57. As for its lag behind the Athlon 64 X2 4800+ equipped with 1MB L2 cache for each of the cores, it is not that big at all: only 1-2% on the average.

However, there were a few applications that turned out very critical to the cache-memory size. In applications of this time the performance difference between the overclocked Athlon 64 X2 3800+ and the Athlon 64 X2 4800+ can reach up to 10%. Although this can hardly upset the happy Athlon 64 X2 3800+ owners, as their solution costs half as much as Athlon 64 X2 4800+ and Athlon 64 FX-57."


That's pretty much all you can do and I learned a lot just form reading it so if it helps me, I'm sure it will open your eyes to OCing your 3800+.
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Old 07-19-2007, 03:12 PM   #9
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

Another forum error. I posted a reply, but it still shows this thread as not being the most recent thread (as if I never posted here). Strange.

How fast? 2.4GHz ^^^^^^^^^^^^^^^^^^^^^^^
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Old 07-19-2007, 03:34 PM   #10
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Default Re: How fast, and what do I need to OC my AMD3800+ x2 Dual Core

ummm... lol i didn't get anything that the review said hehehe..

also, i was reading review on heatsinks on newegg and some poeple got their 3800 to 2.7ghz average and a couple got 2.9ghz
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