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No post, dying CPU fan, seems like se...

Trish's Escape from Hardware Hell Help Board » Hardware » Dead, Dying or Booting Problems » No post, dying CPU fan, seems like serious trouble « Previous Next »

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Andrei Judzewitsch
Posted on Friday, February 8, 2002 - 1:00 am:   

Hi all, I'm hoping I can get some help with this, because I am getting rather worried here.

Last night, I turned my new homebuilt system on and got it working perfectly. The system specs are as follows:
CPU: AMD 1800+
MB: Iwill XP-333
HDD: Maxtor 40GB 7200 rpm ATA-133
Video: ATI Radeon 8500 LE (250 MHz)
P/Supply: Enermax 350W
CPU Fan - Globalwin WBK38 6800 rpm fan
RAM: 512 MB Nanya PC2100, CAS 2.5

Last night, as I said, it was running perfectly, through multiple reboots and a burn-in program testing all components at 100%.

However, I got home from work today and found the thing wouldn't even post. I thought that odd, tried turning it on and off. At this point everything was working normally, just no post, even after resetting the CMOS (desperation here).

So I pulled out the DVD, floppy drive and HDD and reset the FSB to 100 MHz, and got the system to boot.

Plugging everything in again, I got it to boot up again and went into bios, and set the FSB to 133 MHz (without enabling it on the MB). Booting up again, I got the RAM error (long beeps, award bios), so reset the CMOS again and tried to reboot.

No post again. Then, turning off and on again, the fans started slowing down. I quickly turned it off. Trying to turn it on again, the CPU fan no longer worked.

Thats the end of my saga, haven't tried turning it on since. Does anyone know what might be going wrong here? I am at my wits end and quite worried about my new system.

Any and all help would be MOST appreciated!!
Posted on Friday, February 8, 2002 - 9:29 am:   

I sure hope you don't have a fried CPU, but everything you have described so far would point to it.
Matt Weston (Matt12330)
Posted on Friday, February 8, 2002 - 6:28 pm:   

I would suspect the mobo as well - a fried CPU should (supposedly) show up as an error in the POST. -and I think the fan speed is independant of the CPU - at least until the POST has completed. Some systems allow you to vary the fan speed, but usually this is after the OS has started.

Did you remember to unplug the machine when you reset the CMOS?

Please post back and tell us it was something simple !!
Andrei Judzewitsch
Posted on Saturday, February 9, 2002 - 3:56 pm:   

I doubt that it is the CPU. For some reason, I have managed to make the thing boot up - on occasion. Sometimes it will just post, get past the memory checking and then hang where it normally says "DDR 200" (I have set everything back to defaults) and just produce a "DDR ". Then nothing. Sometimes it won't even post???

I think for the fan connector, that has just burned out (I wasn't running the thing without a CPU fan...) as when I plug it directly into the powersource, it goes along just fine. So if I rma the board I won't be plugging the fan directly into the motherboard again.

The only thing I did with this motherboard was attempt a slight overclock of the FSB. I took it up to 143 MHz, which shouldn't void the motherboard, only the CPU (The MB is supposedly rated for a 166 MHZ FSB). I also ran some sort of burn in test and there were no errors after 15 minutes of 100% utilisation of all components.

As for resetting the CMOS - no I didn't unplug the machine. The manual was pretty vague on that point (this is my first built system :P) as were many of the guides I read. Does it make a big difference??? In the future I will.

But whatever the result, many many thanks to everyone who came up with some help =)
Posted on Tuesday, June 18, 2002 - 10:14 am:   

You had the system on and the fan stopped. On AMD cpu'ed systems it takes less than a sec. to fry it. Only the heatsink itself will allow some more time until it really smokes. I really think you damaged the cpu. One question, was any heatsink compound or heatpad used. If not then the heatsink can't do its job, 100%. I ask as you did this as a new system and 1st home build??? Reviwe all that... -----Willy

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