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Old 01-04-2006, 10:28 PM   #1 (permalink)
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Question Overclocking Athlon 2800+

Hey Peeps,

I'm currently OC'ing my Athlon XP 2800+ to 2.1Ghz(Athlon XP 3000+), but would like to push it up to at least 2.2Ghz, if not more.

It runs stable at 2.1Ghz, with a FSB of 200 and a multiplyer of 10.5, but when I change the multiplyer to 11, it loads Windows, stays on for a minute, and then reboots.

The CPU runs at about 50C idle at 2.2Ghz, and I've got the CPU Voltage at 1.8.

What am I doing wrong? I've seen guys on the forum that overclock their Athlon XP 2500+ at 2.3Ghz, so I know it should be possible to OC my rig.

Please help!

Thanks
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Old 01-04-2006, 10:35 PM   #2 (permalink)
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50c for idle is way to much. Should be in the 30s-40s. You will need better cooling.
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Old 01-04-2006, 10:45 PM   #3 (permalink)
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why so high on voltage? will cause a lot of extra heat.if you had to up the voltage just to get to 2.1 it may well be the chips max oc. not all chips oc alike
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Old 01-04-2006, 11:07 PM   #4 (permalink)
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whew, I would do a little more research before you go throwing voltage around like that. You don't need to fry anything and learn the hard way. CPU's like that are starting to cost a lot of money so I'd try to be gentle with it and ease it into an overclock.

You definately need better cooling if you're idling at 50*C. Consider getting more case fans.

Ryan
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Old 01-04-2006, 11:24 PM   #5 (permalink)
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The Athlon XPs can take some brutal voltage with proper cooling.
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Old 01-04-2006, 11:30 PM   #6 (permalink)
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Quote:
Originally posted by FghtinIrshNvrDi
whew, I would do a little more research before you go throwing voltage around like that. You don't need to fry anything and learn the hard way. CPU's like that are starting to cost a lot of money so I'd try to be gentle with it and ease it into an overclock.

You definately need better cooling if you're idling at 50*C. Consider getting more case fans.

Ryan
yah 003 is right i remember reading one of garras post to a similar situation he said it can take 2.0 v with the proper cooling
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Old 01-05-2006, 12:20 AM   #7 (permalink)
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boys, I know they can take voltage, but if you're upping vcore by .2 volts blindly, you aren't overclocking safely.

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Old 01-05-2006, 07:08 AM   #8 (permalink)
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Thanks guys. I've lowered the voltage to 1.7, and it is still stable at 2.1Ghz. And Idle temp is down to 40C.

But safety aside, and lets say I get better cooling, how would I go about OCing this? Oh yeah, with regards to temp, what monitoring program is good? I got one with the Mobo, but the reading on that one was always 5C lower than the one in the BIOS. Which one should I believe?
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Old 01-05-2006, 08:57 AM   #9 (permalink)
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Trust your BIOS overall. Just remember if your mobo temp sensor is messed up/damaged, even your BIOS can be wrong.

Speedfan is my favorite monitoring program.

For best results, you'll want a higher FSB and lower multi. Instead of 200*12, you want 240*10 to get 2.4GHz (just an example). If your mobo/RAM can't run that high of a FSB, then that's going to be your bottleneck. Always try to run as little voltage aspossible to get it stable, running more than necessary for a safety net really isn't necessary unless you're having fluctuation issues with voltages/PSU.
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