MSI Motherboard won't boot at 133

[gcs]

I have a MSI 745 ultra Motherboard
AMD 2000
512M DDR PC2100
Radeon 7000 Graphics card
40 gig HDD
win 98 SE

When I try to run the PC at 133 FSB the system starts to boot into windows and then gives the comment 'Windows Protection Error', if I lower the speed to 120MHz the board see the processor
at 1.8 and it will work fine for a few hours between crashing, if the FSB is droped to 100Mhz then there is no problem.

I have a coolermaster fan which should go up to 2.8 gig chip, 2 chasis fans, the board temp is about 34 C and the processor temp varies between 48-54 C, this is at both 100 & 120 FSB,

Is there some conflict with the RAM

[beppodmime]

Ok, I'm a bit confused here...

You mean to say you have an AMD Athlon XP 2000+, right? And that the board sees the processor as an 1800+ XP?

Sounding to me like a heat issue. Have you recently built this system, or did you recently change the cooler or processor or both?

[Telexen]

Is that 512mb in two sticks of RAM or one? If it's two I'd try just putting in one at a time and booting with just the one...trying both seperately.

[PonzSpyder]

Maybe try and lower your multiplier, sounds like its at 15 by the info you gave. Set it to a multiplier of 13.5 with FSB of 133 and see if it still happens, if it works then the problem is not your RAM. I checked and looks like your mobo tops out right at the 2Ghz mark so it should handle the 133x15 without a problem.

Did you change your memory timings ever? check that out too when your in the BIOS. Your RAM may not function that fast if the timings are set faster than the manufacturer suggests.

[twistedbrntucker]

"When I try to run the PC at 133 FSB the system starts to boot into windows and then gives the comment 'Windows Protection Error', if I lower the speed to 120MHz the board see the processor
at 1.8 and it will work fine for a few hours between crashing, if the FSB is droped to 100Mhz then there is no problem. "
Bios will see the processor at the actual ghz it is running at. My Athlon XP2200+ really runs at 1.8 ghz. As far as your RAM and whatever. Try running the RAM at SPD with 100 fsb and what are the settings.Then step up to 133 and then what are the timings. Then run RAM under manual with FSB @133 at the following 7-3-3-2.5,8-3-32.5. Then see how stable it is.

Also what Brand of ram and power supply brand and specs are you using?

[Omardeth]

what is the mutiplier you have it set to ?

[gcs]

going to PonzSpyder's post, how do change the multiplier settings, in the bios page that refer's to frquency the system is set as

Spread Spectrum - Enabled (Disabled)
Unused PCI/Dim Clock - Stop (Action)
CPU FSB Clock - 100 (up to 200)
CPU Clock Ratio - 1:1 (3:4)
Dram Frequency This automatically changes with FSB change
CPU Ratio - by H/W (various 5x 6.5x up to auto)
CPU V core - Auto
ddr voltage - 2.5

is this the place where I would alter it

[PonzSpyder]

Yes, CPU Ratio is where you change the multiplier at. ( leave the CPU clock ratio one alone though, keep that one set at 1:1 )

[gcs]

I may be a little thick here, but what is actually happening when I change these settings, the CPU ratio, the motherboard book is not that clear

[PonzSpyder]

Motherboards are designed to work with many different processors but you have to configure the motherboard in order to work with them correctly. For example...

You have the XP 2000 processor which the manufacturer intends to work reliably up to the speed of 1.8Ghz ( or 1800Mhz ). You have to configure the motherboard to run at that speed, anything higher and you run the risk of your system crashing or not booting into windows.

The processor's ( or CPU's ) speed is based off of your Front Side Bus ( or FSB ) speed which is usually synchronized with your RAM. There is also a multiplier setting you can change. Basically when you change this multiplier you are telling the motherboard to multiply the FSB speed times the multiplier itself to get the speed you want to run the CPU at.

IE:

100 FSB times a multiplier of 15 = 1500Mhz ( or 1.5Ghz )
133 FSB times a multiplier of 13.5 = 1799Mhz ( or about 1.8Ghz )
133 FSB times a multiplier of 15 = 1999Mhz ( or about 2Ghz )
*NOTE: 133 is actually 133.333333333333

The CPU clock "ratio" setting on your board is when you want to run the RAM and the FSB at different speeds.


Does that help any?