[midknightexpres]

Hi guys. I searched for some help, but couldn't find anything. Anyway, my friend put together my computer for me. One thing I found wrong with the whole is that my processor is running at half it's speed.

I bought from newegg OEM.

AMD Athlon XP 2800+ Barton 333MHz FSB Socket A Processor Model AXDA2800DKV4D

This is probably a simple question and I just don't know it. Any help would be great.

(p.s. My friend also bought this processor, and the same thing happened to him, but he fixed it. I would ask him, but he's in basic.)

 

[UncleMacro]

That CPU is supposed to run at 2.083GHz with a FSB frequency=166MHz (333 DDR). If it's running at 1.25GHz then your FSB frequency is actually set to 100MHz (200 DDR). You need to set your FSB frequency to 166MHz. If it's an older motherboard then you may need to set jumpers. On most motherboards you can set the FSB frequency in the BIOS.

It's also possible that the motherboard has a BIOS which is too old and it doesn't recognize the CPU. In that case the motherboard will often use the slowest FSB frequency. The solution to that is to get a newer BIOS which recognizes your CPU and flash the motherboard.

What motherboard are you running?

 

[midknightexpres]

Here's my motherboard.

ASUS A7N8X-X Socket A (Socket 462) NVIDIA nForce2 400 ATX AMD Motherboard

http://www.newegg.com/product/product.asp?item=N82E16813131468

 

[UncleMacro]

According to ASUS all versions of the BIOS should auto-recognize your CPU so you shouldn't have to flash the BIOS. There's a CPU_FSB jumper on the motherboard right next to the northbridge. The motherboard manual shows you the position of the jumper. If CPU_FSB is on pins 2,3 then it forces the FSB frequency to 100MHz which is what you're getting. Make sure the jumper is on pins 1,2 so you can run at 166MHz. Then I'd clear the CMOS and allow the motherboard to automatically recognize the CPU. If that doesn't work then you can set the FSB frequency manually in the BIOS. It's the "CPU External Frequency" in the "Advanced Chipset Features". It should be set to 166.

 

[midknightexpres]

This might sound rediculous, but how do you clear the CMOS?

Is there anything I need to know before I do it? I have no idea what clearing the CMOS is/does.

And thanks for your help. I'm sure this will fix things.

 

[midknightexpres]

Ok, got it to work. Thank YOU!!!

 

[Luk07]

hey make sure you return these guys are great, as many have said before 1 persons knowledge can only be so good but when you have 100's maybe 1000's of people on 1 problem there is always a solution. kudos to the thought behind TSF, heres to the guy who made this site. cheers, great idea you are an awesome dude!