System will never restart.

[dave4900]

Evening all, I have recently built a new system and everything was running absolutely fine, i had it running for over a week.
However last night I decided to install my water cooling kit, as i had only been running it with the stock heatsink. The installation was fine no problems what so ever.
When i went to power it up i got a cmos error saying that a new cpu had been installed and that i had to change my bios settings, i did this, when it restarted the screen just went blank my monitor switched off not even a peep out of my hardisk. I cleared the cmos again and retried and the exact same thing happened, next time instead of going into bios i selected load default setting and it booted straight away. In windows I clicked on restart machine and same thing happened, no post no nothing.
I am really struggling to work out what is going on, any advice would be greatly appreciated.

System Specs:

Intel Pentium 3.2mhz Prescott
Asus P4C800 Deluxe E motherboard
1GB PC3200 Crucial Balistix memory
300Gb Maxtor Sata Hard Disk
Nvidia Geforce FX5700Le Graphic card.

 

[dave4900]

Not sure if this was the right forum to post in but my cpu was about the only thing i touched so that is why.

 

[Cybercraig]

You need to connect a fan to the CPU fan pin because the board does not want to smoke the CPU. It doesn't know what you've done!

Abit IS7 - 2.8C @ 3.4ghz - Mushkin PC4000 (2 X 512) - Sapphire 9800Pro - TT 420 watt Pure Power
Samsung 120gb ATA-100 - Maxtor 40gb ATA - 100
Sony DRU-510A - Yellowtail Merlot

 

[Mr5oh]

As CyberCraig said, check your RPM sensor wire to the motherboard.

If that doens't work, try pulling out anything that is unecessary. Take out any PCI Cards, try and use one stick of RAM, see what happens, then? I've had bad PCI cards do all sorts of weird things (Modem the other day caused a PC to do nothing but restart, shutdown, and powerbutton, and it would shutdown, but then turn itself right back on.)

My Desktop: <A HREF="http://Mr5oh.tripod.com/pc.html" target="_new">http://Mr5oh.tripod.com/pc.html</A>
Overclocking Results: <A HREF="http://Mr5oh.tripod.com/pc2.html" target="_new">http://Mr5oh.tripod.com/pc2.html</A>

 

[SoDNighthawk]

Yes you need a fan connected to the CPU jumper. Plus if you removed the heatsink and or any other metal parts you want to make a small jumper wire from the mainboard to the computers metal case for ground.

Barton 3200+ 400MHz
A7N8X Deluxe
Air Cooled 45C
2x512 Corsair DDR 400 PC3200
GeForce FX5900
Two Maxtor 40Gig 8MB cach 7200rpm
SONY RW 52x/24x/52x
SONY DVD 16x/40x

 

[endyen]

What, just weld it onto the heat spreader?
FYI, the water in his water cooler will supply more than enough ground, unless of course he is using a plastic heat sink lol.

 

[SoDNighthawk]

Water does not conduct electricity.

All the normal hydrogen element's in water does not conduct electricity by itself.
But hydrogen plus an "opposite" element can make water conduct electricity.

Barton 3200+ 400MHz
A7N8X Deluxe
Air Cooled 45C
2x512 Corsair DDR 400 PC3200
GeForce FX5900
Two Maxtor 40Gig 8MB cach 7200rpm
SONY RW 52x/24x/52x
SONY DVD 16x/40x

 

[dave4900]

Thanks for the replys sorry I haven't been able to get back to you but i have been off line ... obviously.. Just tried a different power supply, no luck there either. I have also just taken out my water cooling system and its really wierd.. my system was acting completely normal so i thought i had sloved the problem(motherboard Grounding or something) but while i was in windows it just froze after about 5 mins or so, then back to the same problem. on the bios post when i did this it said nothing about a new cpu being installed which is why i thought i had sorted it, it also did this when i tried another psu.
Please this is totally pissing me off, HELP

 

[Mr5oh]

Did you try removing all the uneccessary stuff, remove all your PCI cards and such, and try and boot. Then cut down to one stick of RAM. Just try and boot with a CPU, Video, and RAM, see what happens?

My Desktop: <A HREF="http://Mr5oh.tripod.com/pc.html" target="_new">http://Mr5oh.tripod.com/pc.html</A>
Overclocking Results: <A HREF="http://Mr5oh.tripod.com/pc2.html" target="_new">http://Mr5oh.tripod.com/pc2.html</A>

 

[Cybercraig]

Well I just stuck in a 3.0C CPU in to test it. It gave me the first post beep and then the first BIOS screen said: "You moron! You've changed your CPU or it has become unworkable". Now this was after I had de-clocked and set everything back to auto before I changed. So I said, "OK, I can play this game!" I del back into BIOS and set everything to manual. I set FSB speed to 201mhz and bumped Vcore to 1.55v. Viola! Updated itself and away we go. If you get back into BIOS, try this. Otherwise, I would be tempted to stick in a BIOS rescue disk and re-flash.

Abit IS7 - 2.8C @ 3.4ghz - Mushkin PC4000 (2 X 512) - Sapphire 9800Pro - TT 420 watt Pure Power
Samsung 120gb ATA-100 - Maxtor 40gb ATA - 100
Sony DRU-510A - Yellowtail Merlot

 

[Schmide]

Here is one caveat you should know about. If you have a relay in your water cooling setup to turn your pump on and off, you need to put a diode on your relay to prevent coil surges going back to your PSU. Without this your PSU may go into protect mode as you are describing.

<A HREF="http://www.procooling.com/articles/html/ph_s_guide_to_wiring_pumps_-_p1.php" target="_new">http://www.procooling.com/articles/html/ph_s_guide_to_wiring_pumps_-_p1.php</A>

Dichromatic for your viewing plesure...

 

[endyen]

Please use your brain. Water is a solvent, not a conductor. Mostly it is the carbon atoms suspended in water that conduct electricity, normally. However, in most water cooled systems, the hs material has particles that get picked up by the water. These are the main source of conductivity in a water cooling system.