AMD Althon XP 2800 running at 1250mhz


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I bought an AMD Athlon 2800+ 333mhz FSB 512kb L2 cache Barton core. It's on a PC Chips M484a motherboard. It's only running at 1250mhz. Am i right in thinking it should be running faster than that? If so can anyuone tell me how to get it running faster?

thanks.

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I bought an AMD Athlon 2800+ 333mhz FSB 512kb L2 cache Barton core.  It's on a PC Chips M484a motherboard.  It's only running at 1250mhz.  Am i right in thinking it should be running faster than that?  If so can anyuone tell me how to get it running faster?

thanks.

585851324[/snapback]

im guessing that your mobo has automatically down clocked it so its at a 1:1 ratio with your ram. What ram are you running?

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Boot Into the BIOS it has 4 settings for speeds it should be running at, or at least with my Asus board it does.

EDIT: It might just be a feature by Asus but I have four settings in mine, one is 1250mhz, another one abit higher, then I believe it's 2083mhz which is what the processor is clocked at and finally 2500mhz. I run mine at 1250mhz because it's fast enough. I think the 2500mhz is set in there for over clocking purposes.

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Crucial 512mb DDR 333mhz PC2700.

Something i've been wondering for a while, what does the PC2700 bit mean?

thanks.

585851493[/snapback]

Thats the bandwidth that your memory does by default.

PC2100 = DDR266

PC2700 = DDR333

PC3200 = DDR400

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Just a question, how hot does your CPU get? I have a volcano 12 and AS5 on mine, and my idle temp is 42-44 C! I'm thinking it should be lower than that.

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  • 5 weeks later...

Holy cow, I have that EXACT SAME PROBLEM. AMD Athlon XP 2800+ reading as 1250 - the instructions seem simple enough to follow, but when I change it from 100 to 166, my computer won't even boot. PC2700 ram is what i got and an ABIT NF7-S2G motherboard.

My machine is made for gaming, so I'd like to run that 2.1 ghz :(

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I bought an AMD Athlon 2800+ 333mhz FSB 512kb L2 cache Barton core.  It's on a PC Chips M484a motherboard.  It's only running at 1250mhz.  Am i right in thinking it should be running faster than that?  If so can anyuone tell me how to get it running faster?

thanks.

585851324[/snapback]

Well ehhh. My comp is crap cuz its a Pentium 3...

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Go into your bois and set your Front Side Bus to 166 - it is running at 100 if you are running at 1.2. If you Change it to 166 you will run at 2.08. :)

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In your CMOS, your FSB should be set up to run at 166 and not 100. If you set it to 166 it should correct the problem.

Well ehhh. My comp is crap cuz its a Pentium 3...

585987026[/snapback]

Wow..... what a useful post that fits into the discussion. :rolleyes:

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Go into your bois and set your Front Side Bus to 166 - it is running at 100 if you are running at 1.2. If you Change it to 166 you will run at 2.08. :)

585987041[/snapback]

I did that, but my computer won't boot up. It freezes after loading the drives.

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pc2700 = 2700mbps theoretical bandwidth, which is also DDR333. I have dual channel pc2700, which is 5400mbps theoretical bandwidth

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Whenever you first start a motherboard with a new CPU or clear the Cmos, it will start up in a sort of safe mode. Thats exactly what yours did. Now what you need to do is go into the BIOS and look for your cpu clock and clock it up to 166mhz. the stock clock for your cpu is, 2.083hgz 2083mhz.

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hey

how fast shud my amd athlon xp2400+ be runin - as in wat ghz shud it b at?

so far its at 2.02, and thats about as fast i have been able to get it

thnx in advance

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hey

how fast shud my amd athlon xp2400+ be runin - as in wat ghz shud it b at?

so far its at 2.02, and thats about as fast i have been able to get it

thnx in advance

586004608[/snapback]

you mean the default clock speed? it's 2GHz.

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ok this is strange - my computer is being erratic. at times It freezes after detecting IDE drives, and at other times it boots up normally. Just what the hell is going on in there?

Note - it only freezes if im clocking it from 100 or 133 to 166. But as of this writing, it is officially working (sorta).

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I did that, but my computer won't boot up. It freezes after loading the drives.

585989168[/snapback]

Did you try at least running at 133Mhz?

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Did you try at least running at 133Mhz?

586009695[/snapback]

im running it at 133 mhz now. 166 only works when it feels like it, i guess. 133 is no problem, while 166 is driving me nuts.

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im running it at 133 mhz now. 166 only works when it feels like it, i guess. 133 is no problem, while 166 is driving me nuts.

586009730[/snapback]

scratch that. even 133 mhz is a problem. now its back to 100 mhz.

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