Overclocking a 2800+

[Medellon]

I'm thinking of swapping out my 2100+ for a 2800+. I'm doing 11x190(2090) and I can't seem to go any higher with my PC3000 memory. Also, my chip(which is unlocked)can't seem to take a multiplier higher than 12x. I can run 12x180(2160) but that is not as stable and doesn't seem as fast as the previous settings. How far should I be able to take the 2800+?

 

[wetcat007]

Well It'll prolly be a barton so it will perform better simply for that reason, but you should prolly be able to get 3200 speeds or better out of it, however if u got PC3000 memory that'll limit you for FSB overclocking so I dont really know.

 

[Shinei]

I have mine running 11x200, but it won't go a nudge higher than 200 (won't boot at 210 or 205 at lower multipliers, requires a CMOS clear). Running 1.77V through it thanks to the GA-7N400 Pro2's inability to properly regulate chipset voltage.

If your 2800+ comes unlocked, you should be able to squeeze a 3200+ processor out of it, but you'll definitely need better RAM (PC3200 at a minimum, I have Mushkin PC3500 just to make sure I have the headroom), and not every processor is guaranteed to overclock well, even in a family of CPUs known for great overclocks (T-bred B 1700+, Barton 2500+). So, your mileage may vary, but even at stock the 2800+ is a very good processor.

 

[myocardia]

Okay, all of the Athlons are locked now, except for the Mobile Bartons. The highest I've heard of, with "normal" voltage bump, is 180mhz fsb. That's 2250mhz, since they have a 12.5x multiplier, but it's still quite a bit lower performance than an XP3200 or a 2500@11x200, because of losing 20mhz (40mhz DDR) in fsb. A high fsb gains you quite a bit more performance than pure clockspeed does. If I were you, I would raise my vcore (cpu voltage) to 1.75v-1.775v, and raise my vdimm (memory voltage) to at least 2.7v, up to 2.8v. Most people with HyperX PC3000 can run it at at least 200mhz. Even if you have to relax your timings to 2.5-3-3-11, that's still not too bad, and won't cost you a penny.

 

[Gravity]

I'm running a 2800 (333) at 200 fsb with normal voltages. Gig 'o ram and a ga-7n2 pro board. Says 2.49 ghz.

 

[Gravity]

Originally posted by: Gravity
I'm running a 2800 (333) at 200 fsb with normal voltages. Gig 'o ram and a ga-7n2 pro board. Says 2.49 ghz.

I lied. All seemed to be well at 400 fsb. Then my box wouldn't wake up from sleeping so I went back to 333. My board won't let me go to any increments in between 333 and 400 so I"m stuck here I guess!

 

[Shinei]

The fact that the CPU is running at 2.49GHz might be where your problem lies, Gravity. Athlon XPs (from what I've heard) are good up to 2.3GHz on good quality air cooling, and require more exotic cooling for 2.4 and up. Try lowering your multiplier to 11x200 and see if it still fails at 200 FSB.

Edit: "Fact", not "face". "Fact." What crack was I smoking when I wrote this post??