My processor speed is 1/2 of what it used to be...

OK I acted upon your advice and opened up my PC and removed the jumper. I placed it momentarily on the two pins on the left. I then replaced it and rebooted my PC. My PC is now registering that my CPU is running at 1800MHz. I went into CPU setup in CMOS and yet again all the options are greyed out. I am unable to change the running speed back to 133/133. It simply wont let me.

I used to be able to change the speed but now I can't. Has anyone got the slightest idea what is wrong with my PC?
 
Try this...

It seems that there is something wrong with the BIOS. Try reflashing it with a newer version.

JAN :D
 
My PC is now registering that my CPU is running at 1800MHz.
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I think that you mean your motherboard is detecting your CPU as 1800+ (100MHz x 15 = ~1.53GHz). Try clearing the CMOS again with all the cables to your motherboard unplugged... you mind as well pop the battery out too. If that still doesn't work, I'd go ahead and see if there's a BIOS update.
 
cdfreelancer, do you have a friend who is good with this stuff? You seem rather paranoid with messing in the BIOS, and even I am paranoid to flash it (unreliable power in my area). If you knew someone who does this kind of stuff all the time, it would be much better. First time you flash a BIOS you want to do it on a board you don't care if you kill. If something goes wrong while you're flashing, you just made a big, expensive, door stop.
 
As a preface, what motherboard do you have?
1. ECS K7S5A 1.X
2. ECS K7S5A 3.x

Also, what is BIOS reporting your CPU speed at? (the reason i ask is there may be throttling at play here although i dont think your board supports it, worth a check)

j0hn00, if you have an ECS K7S5A then how on God's Earth can you run an athlon 3400+? I thought the most it could take is a 2400+!?!?!?
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It can handle any AthlonXP pretty much and AthlonXPs go to 3400+

OK, first off, CPU frequency is already set at 133MHz. Even if it wasn't, I wouldn't be able to select the CPU frequency option anyway. Upon entering CPU setup I am unable to select anything because all the options are greyed-out. I press the arrows keys up, down, left and right but nothing happens.
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Ok good, now you need to make sure the multiplier is set to 15 and you'll be set. If you can get access to controls there are two things to do: (1) check that any options set to 'automatic' are set to 'manual' and (2) check to see if jumpers need to be fiddled with

What do you mean "are you sure you're reading it right?"?
I went into CPU setup an wrote down the exact CPU frequency.
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Not to call you a liar (since im trying to help you here, rather than accuse or anything), no processor made in the last 10 years has a core speed of "1.648" but your processor does have a core voltage of 1.60-1.65v for which 1.648 falls in hence my comment.

take all advice and act on it, dont just reject it
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With a grain of salt of course.

How do I reset the CMOS?
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Have a look at your manual (page7)

I thought that the jumper only needed to be taken off momentarily? I wasn't aware that it needed to be placed over the two left pins.
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Again look at the manual, you should be popping the jumper and the battery then resetting the jumper and battery :)

are you logged onto two xp accounts at the same time? If you are then you clock speed is cut in half.
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1. This is a pre-OS issue
2. No it wont cut your speed in half
 
It can handle any AthlonXP pretty much and AthlonXPs go to 3400+
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Didn't know that... though I've found some references, I can't seem to find a definite link to them. Was the XP 3400+ something that just blew by before the 64 series?
 
Didn't know that... though I've found some references, I can't seem to find a definite link to them. Was the XP 3400+ something that just blew by before the 64 series?
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To answer your question, yes. But next time let's stay on topic, keeps things clean :)
 
I am having about the same problem as the thread starter...I have just replaced my case(power supply went out) and when I start it up, I noticed that my AMD Athlon XP 2800+ was being identified as an 1800. I have not changed any jumper settings and on my BIOS, it says FSB is running at 100mHz. The problem is that anytime I change the settings of the FSB to 133mHz, the computer will turn off after I save and exit. Then, when I turn the computer back on, it has reset itself to 100mHz. Any help or suggestions would be greatly appreciated.
 
nrz said:
I am having about the same problem as the thread starter...I have just replaced my case(power supply went out) and when I start it up, I noticed that my AMD Athlon XP 2800+ was being identified as an 1800. I have not changed any jumper settings and on my BIOS, it says FSB is running at 100mHz. The problem is that anytime I change the settings of the FSB to 133mHz, the computer will turn off after I save and exit. Then, when I turn the computer back on, it has reset itself to 100mHz. Any help or suggestions would be greatly appreciated.
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Try to change the FSB to 166Mhz and 12.5x multi, I think that is stock for your proc ( i assume it's a barton ) then push F10 in the bios and save and exit....If it sets itself back to the 100Mhz it seems like it's clearing the c-mos on every restart, make sure the jumpers are set right...:)
 
It should be set to 12.5x already then and the Vcore should be set to 1.65v....
All I can think of is to check your jumpers and set the FSB to 166...
 
Alright I shall check the jumpers tomorrow...though my father insists we haven't messed with them, it wouldn't hurt to check, eh?
 
I am having about the same problem as the thread starter...I have just replaced my case(power supply went out) and when I start it up, I noticed that my AMD Athlon XP 2800+ was being identified as an 1800. I have not changed any jumper settings and on my BIOS, it says FSB is running at 100mHz.
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Thats a motherboard safety feature .... goto bios and load either the corec settings or load the optimal settings :)
 
The "optimal" setting is 100mHz though, which isn't what it is supposed to be...

Edit: Do you think perhaps the jumper settings need to be changed to allow the processor to run at full speed? Also, everything worked fine before I switched cases, which is why I think I might have accidently changed some settings or something...
 
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Finally, *slaps self on head*...I had to change it from "optimal" to "user-defined" so it would accept the changes...Thanks everyone who helped, it is working at 2.0gHz like it is supposed to.
 
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OK I've finally sorted it out! I went back into CMOS and magically, for some reason, the options were no longer greyed out and I managed to change it back upto 133/133. Now when I reboot, my CPU is running at 2400 again.
 
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