x2 3800 @2.4 stock

Dec 29, 2005
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Hi overclockers-

I'm not trying anything crazy just learning how this whole overclocking thing works. So far I have gone through several guides and I can't say i fully understand what everything means but I think I've got enough to do some basic overclocking.

I've been using clockgen for the isolation process. I found my max HTT/FSB at about 285 which didn't seem too high :( . Max chip was at 2417mhz - haven't tested for 12 hour stability but it was stable for an hour.

Haven't tried messing with the memory yet - still confused.

I have my comp running at 10x 240 with HT @4x. I set my memory frequency to 166 but cpuz reads it at 200. I didn't mess with volts at all (im not even sure if I can in my bios). Idle at 26-27 and jumps all the way to 51-52 at a full load (small ftt test). Using the stock HSF that came with my 3800.

Specs: x2 3800, biostar tforce 6100, 2x 1g patriot ddr400 pc3200, 450w fortron, 80g seagate and a 250g WD

-any feeback, suggestions, comments would be greatly appreciated... thanks in advance!
 

kyparrish

Diamond Member
Nov 6, 2003
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Looks great, my 3800+ loves 2.4 as well. The 166 divider is great at this speed for PC3200 no-frills ram. I'd get a better cooler, maybe something like an XP-90, or look for one of the new stock AMD 4-pipe heatpipe HSF's. They are on eBay, you can get them for around $15 shipped.
 

Zap

Elite Member
Oct 13, 1999
22,377
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That's a nice overclock. Don't sweat trying to get more because then you'll be like that other person who created a thread a couple of days ago saying he's getting ready to smash something up because he can't get the overclock he thinks he should.

Your CPU has a 10X multiplier and so 2.4GHz is actually a really nice number for it. Memory dividers work like this... set to 166 means that your memory runs at 5/6 the bus speed. 2.4GHz means you are running 240MHz bus speed, meaning 5/6 of that is 200MHz - absolutely perfect for your PC3200!

Your idle temperatures are really nice and low - don't even sweat those. Load temperatures, well, you can spend money on a better HSF to reduce those a bit but 52ºC doesn't sound too high - ask someone with an overclocked Prescott CPU what their load temperatures are at and you'll feel much better. ;)
 

TrevorRC

Senior member
Jan 8, 2006
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I resent that Zap :p
I was talking about smashing my statue to the overclock god ;)

And yeah, 2.4 is a nice overclock, especially considering the stock volts.
Take the HTT Multiplier down a notch to 3.0x
Also, bring the memory divider down to say 133 or 150
Take the voltages to 1.425 (or 1.45)

Bring the HTT (FSB) to 250, Prime it for an hour (BOTH CORES!) and if it stayed stable, up it another 100Mhz.
Lather, rinse, repeat until you max out. (Stability fails) (Or, when your load temperature goes over ~65C)
If it locks up/freezes, it means you're at the max. When you do find the maximum frequency you can achieve, bring down the voltage and keep lowering it until it is no longer stable--go 1 notch above that, and you're set!

The AMD 4-Pipe HSFs are phenomenal (as Kyparrish said), especially considering the price.) and are readily availible on eBay.

Also Zap, people with a Prescott have chips that will stay stable with those kind've temps :p

--Trevor
 
Dec 29, 2005
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Update: I upped the voltage to 1.45 and htt(fsb) at 250 - ran prime on both cores for 8 hours and it was stable. Load temps seem a bit too hot though now at around 54 - 55. Vcore 1 @ 1.42 vcore2 @ 1.15. I will post pics later when i have time.

Thanks for the helpful replies!
 

Zap

Elite Member
Oct 13, 1999
22,377
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Originally posted by: TrevorRC
I resent that Zap :p

Also Zap, people with a Prescott have chips that will stay stable with those kind've temps :p

You mean you resemble that remark? ;)

I used to have a few Prescotts. Had one running at a toasty 80ºC+ while overclocked. The top of my Compucase 6A19 was hot, and I was running the central airconditioning too. I have to say that the chip didn't complain, but man did it make my a/c work harder.