New AMD 2400+ isn't working ...

I didn't want to post on this before I purchased it because I'm people post semi-retarded questions all the time ... but now I'm having trouble and I've no idea how to fix it.

Basically I had an AMD 1GHz t-bird before, and I decided to upgrade to a 2400+. It seemed like it should be compatible with my current board because on the manual says it's an:

Asus A7V133
200/266MHz FSB Socket A Motherboard

And the new chip is:

AXDA2400BOX Thoroughbred
266MHz FSB Socket A

What it does is it will get through all that BIOS check stuff, it will read off the main statistics of the computer, etc. and then right before the Windows XP start up screen (with the moving bar and all), it just STOPS and sits there with the computer statistics on the screen.

I don't know if it's important, but I also noticed it says it's running at 1466MHz, which seems a bit low. I knew they should run at lower than 2400MHz, but an entire gigahertz lower seems extreme.

Anyway that's all the information on it I could think of to post. If there's something important I'm forgetting just let me know and I'll post it. Any help would be appreciated ... thanks!

Depending on your motherboard you might need to change the FSB jumper from 100 to 133. Look in your manual for it. Some motherboards also let you change that in the bios.

I hadn't done that before, so I went in and changed the CPU frequency from 100MHz to 133MHz, but it doesn't appear to have had any effect.

flash your bios. also, 133 is the correct fsb speed. your multiplier is 14.5

thus if you were at 100, you'd be at 14.5 * 100 = ~1450.

14.5 * 133 = 1933

asus a7v133 is a kt133 chipset board. It does not support the proper voltage to run the Thoroughbred cpu's. The highest cpu that you board can support is probably the Palomino core athlon xp's (2200+), but they run very hot (trust me, I have a kt133a board with a 2100+ palomino core, and its power consumption is higher than an athlon xp 3400+ barton core). One thing I discovered was that after I put the 2100+ palomino in, I needed a new power supply too for things to run stable, so just spend the extra money and buy a new motherboard.

ASUS cpu support by motherboard: http://www.asus.com/support/cpusupport/cpusupport.aspx

The highest for your board is:
CPU Athlon XP 2100+(Model 6)(Palomino)
PCB version required: 1.05.
Bios required: 1007

Still not deterred? go to groups.google com and look in alt.comp.periphs.mainboar d.asus
for a7v thoroughbred. This may be of interest: here (http://groups.google.com/groups?q=a7v133+thoroughb red&hl=en&lr=&ie=UTF-8&selm=n0Qha.10165%24k52.81 33%40fe09.atl2.webusenet. com&rnum=1).

As you can see, there is a beta bios available on an asus page: http://www.asus.com.tw/inside/Techref/thoroughbred.htm, a 1012.001 version. You already got the hardware, so it's worth a shot. You'll probably need to plug in your old cpu to boot up and install the bios. You might also want to poke aroudn www.asus.com.de, when I had a P5A I got a beta bios from there for AGP card support, that was not available anywhere else.

asus a7v133 is a kt133 chipset board. It does not support the proper voltage to run the Thoroughbred cpu's. The highest cpu that you board can support is probably the Palomino core athlon xp's (2200+), but they run very hot (trust me, I have a kt133a board with a 2100+ palomino core, and its power consumption is higher than an athlon xp 3400+ barton core). One thing I discovered was that after I put the 2100+ palomino in, I needed a new power supply too for things to run stable, so just spend the extra money and buy a new motherboard.

ASUS cpu support by motherboard: http://www.asus.com/support/cpusupport/cpusupport.aspx

The highest for your board is:
CPU Athlon XP 2100+(Model 6)(Palomino)
PCB version required: 1.05.
Bios required: 1007

Still not deterred? go to groups.google com and look in alt.comp.periphs.mainboar d.asus
for a7v thoroughbred. This may be of interest: here (http://groups.google.com/groups?q=a7v133+thoroughb red&hl=en&lr=&ie=UTF-8&selm=n0Qha.10165%24k52.81 33%40fe09.atl2.webusenet. com&rnum=1).

As you can see, there is a beta bios available on an asus page: http://www.asus.com.tw/inside/Techref/thoroughbred.htm, a 1012.001 version. You already got the hardware, so it's worth a shot. You'll probably need to plug in your old cpu to boot up and install the bios. You might also want to poke aroudn www.asus.com.de, when I had a P5A I got a beta bios from there for AGP card support, that was not available anywhere else.
According to Asus' site, it's the KT133A chipset on the A7V133 motherboard.

As for not properly supporting the voltages due to the KT133 chipset, that's incorrect. Voltage support is motherboard specific, not chipset specific.

I have used a Tbred core processor in both an Abit KT7 and KT7A (KT133/KT133A chipsets) and it works fine, although on the KT7 you have to tweak things to get it to work at the appropriate clock speed.

According to Asus' site, it's the KT133A chipset on the A7V133 motherboard.

As for not properly supporting the voltages due to the KT133 chipset, that's incorrect. Voltage support is motherboard specific, not chipset specific.

I have used a Tbred core processor in both an Abit KT7 and KT7A (KT133/KT133A chipsets) and it works fine, although on the KT7 you have to tweak things to get it to work at the appropriate clock speed.
Motherboards from the kt133 era are less likely to provide the voltage support for cpu's that weren't even announced at the time. Thus, ASUS's main support page says it is not supported, but if you go to the "inside" page there is a beta bios to support it. The voltage is too high, I think.