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Cpu Under Estimated ...


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#1
Daemon Black

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I just recently purchased a new motherboard < MachSpeed V400ADBL > and processor AMD Athlon XP 2400. My computer recognizes it as an AMD Athlon XP 1800 running at 1.5ghz. I tried to adjust the FSB jumper setting on my mobo to 133 mhz. When I did this the BIOS recognized it as a 2400 but as soon as I got past the login screen on my OS < WIn XP Pro > it gives me a blue screen of death, and begins a physical memory dump and then restarts. Also my memory is recognized at 1 gig, but it benchmarks at a really low output. Any help would be appreciated.


This is whats in my system.

CPU= AMD Athlon XP 2400
BIOS = Award 2MBit Flash Rom
Mobo = MachSpeed V400ADBL
Memory = 1gig of PC 3200
Vid Card = ATI Radeon 7500
300 w power supply
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#2
tazz1964

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Hi Daemon Black
Welcome to geeksto go
Is this you change out of Mb for a old one that was in the system? did you install the via4in1 cd?
<_<
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#3
admin

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Happy Holidays Daemon Black <_<

You may have gotten a bad stick of RAM. Try them one at a time to see if your system boots successfuly at 133mhz FSB. Also, memtest86 is a great program for testing memory. It's loaded from a bootable floppy.

If your memory passes, my next suspect would be the power supply.
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#4
Daemon Black

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Thanks for the welcome... This is a completely new build that Ive assembled. The only thing carried over were my hard drives. The hard drive with my OS was formatted . I received the mobo and cpu at the same time and installed windows xp pro once they were installed. Yes I installed the drivers that came with the board including the Via 4 in 1. Im going to reinstall the drivers and see if it clears things up.
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#5
Daemon Black

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Well I reinstalled drivers, BIOS still recognized CPU as an 1800XP . I switched jumper setting for FSB from 100 to 133 and it recognized it as a 2400XP and then memory dumped again. Any other probably causes or solutions?

Thanks

Daemon
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#6
admin

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I posted just above your previous post, did you notice it?
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#7
Daemon Black

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Next Round...... Changed jumper settings to 133 on FSB. Put in one stick of memory < 512 mb> , ran the Mem Test you recommended. It passed, no errors. Went to start up..... BSOD Memory dump/ Restart. Did the same with other stick. Installed, Tested, booted, Dumped... you said it was possibly the power supply. Any way to test with software. I dont have ready access to a multimeter but can get one. What do you suggest...?

Thanks again

Daemon
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#8
admin

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We'll that pretty much narrows it down to the power supply, motherboard, or CPU (in that order).

A multimeter won't tell much about your power supply. You'll need access to a power supply tester, or another power supply to swap out. You could also try unplugging any unneeded devices (i.e. CD-ROM drives, floppy drive, extra case fans, etc.) and test. If it successfully boots at 133mhz, your power supply isn't supplying enough juice.

After the power supply, the mobo is the next most likely culprit. Not much you can do to test it, except to swap it. CPU's are thoroughly tested, and rarely a problem.
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#9
Daemon Black

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Well Im typing this email with an accurately rated AMD 2400 XP, I just have no floppy drive, no cd drives and 2 case fans unplugged. SO I guess my 300w power supply < which may be rated at less considering some articles Ive read > isnt supplying the necessary power. Thank you very much for the help considering how much it wouldve cost me to find out the problem from a tech shop. Now I can use that money towards a new power supply. Any suggestions?

Have a great Christmas everyone

Daemon
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#10
admin

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Congratulations! The easiest way to determine the quality of a power supply is to pick it up. A quality supply will just be heavier. Expect to pay $40-$75.

With a quality PS, 300W should be plenty, and you won't need more than 400W. Just stick with a brand name, and look around the 'net for reviews. I also prefer a PS with two fans, one on the bottom, and one on the back. It'll keep your system running cooler.

Now turn off that computer and go enjoy some time with your family. <_< (I know I'm going to.)

Happy Holidays!
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