AMD Athlon XP 2500+ processor BIOS config

[AGudur]

Type of processor:
AMD Athlon XP 2500+ (333 MHz FSB)

Brand, model and revision of the motherboard including BIOS revision
Gigabyte GA-7NNXP
F6

Brand and model of the heat sink
Coolermaster CP5-6J31C

Brand and model of the power supply
Eagle DR-A300ATX

Operating System
Windows 2000 professional



I bought a new AMD Athlon XP 2500+ (333 MHz FSB) processor to upgrade from my reliable AMD Athlon XP 1900+ which was running at 1600 MHz. When I installed my new processor it showed up in the system information as 1830 Mhz which I believe should run at 2075 MHz or a bit faster, without overclocking. I went to the BIOS to change the system clock and the multiplier to 166 x 12.5, but my motherboard does not have 12.5 as the multiplier but gave me the option of 12 instead, so when I set it to 166 x 12 which gives me 1992 MHz but my system didn't boot up. I then set it to 166 x 11 which gave me 1830 MHz which I believe is under the capabillity of my new processor. In addition to the above info my memory is PC 2700 DDR (FSB 333).

Am I doing the right thing? If not, could you advise me how I can get the best out of my new processor. At the moment it looks more slower than my previous AMD Athlon XP 1900+.

Thank you very much


Adan Abdi

[Amspete]

The stock speed of an AMD Barton 2500 is 1830GHz, just as your system is reporting. The thing to remember is that the Barton core has more L2 cache, 512k instead of 256k. That combined with 128k of L1 cache brings it to 640k total cache. That is what separates the Barton from the T'breds. So, while the clock speed is only 1830GHz, theoretically, the performance is equivalent to a Pentium 2.5GHz. It's the way AMD markets their cpu's.
Now that you know that your system is reporting your cpu speed exactly as it should, you should be able to overclock that cpu to 2,075 just by raising your multiplier from 11 to 12.5. That small an increase shouldn't require an increase in the vcore, however, every cpu and every board is different. If your board doesn't provide you with a 12.5 multiplier then to attain that speed you would need to bump up your fsb to around 188 at the default multiplier, or a multiplier of 12 and fsb of about 173.
Just remember, that the stock setting for the Barton 2500 is 1830GHz at 11 multiplier x 166 fsb. Anything above that is an overclock. But, don't forget about the extra onboard cache which will theoretically boost the performance as well.

[Texuspete00]

Well, if it aint booting at 166*12, it would seem some extra vcore is in order. You have a nice board with pci locks. You may have some room with the ram, consider upping your front side bus instead.

[DeeqaG]

Originally posted by Amspete If your board doesn't provide you with a 12.5 multiplier then to attain that speed you would need to bump up your fsb to around 188 at the default multiplier, or a multiplier of 12 and fsb of about 173.

I would like to know how to bump up my fsb to around 188 at the default multiplier, or a multiplier of 12 and fsb of about 173 please. thanks in advance
AGudur

[Zen]

I have it at 205*10 should I change this?? If so how.. to what?