detailed liquid cooling leak, now computer won't start Alienware Aurora R3

tony8394

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Oct 6, 2013
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Dell 46MHW Alienware R3 Motherboard (LGA1155 intel socket)
2x4gb 1600mhz corsair vengeance ram
i7 processor 3.4Ghz
2x 500gb hd, not running raid
ATI Radeon 5870 x2 crossfire was enabled




the other day my liquid cooling leaked into 1 of my 2 gpu's. it must have been happening for a while because the gpu was pretty corroded when i looked at it afterwards. no sign of liquid on motherboard though.
i went to sleep with an almost finished episode of tonight show with jimmy fallon streaming from the internet. that was the only thing running.
when i woke up the day my wife told me she shut the computer off because it had a really loud fan noise. i tried to start up the computer, the "loud fan noise" came on immediately. i opened the case and the top GPU was filled with liquid. i removed it, tried with other gpu that was still installed, didn't run up. it did sound normal this time though. the fans booted up a little noisy (like normal) then went quiet, but there is nothing showing on the screen.
i do not have onboard graphics either so i couldn't check if that gpu was bad as well. I'm pretty new to this desktop thing as this is my first desktop.
so heres whats happening now. I've removed all usb items to count them out. I'm hooked up in slot one of my gpu port, I've tried #2 as well, I've used p14 and 15 (power for gpu cards) and also have tried p16 & p17. neither of them do anything different. gpu starts up normal, fan is spinning quietly on this gpu. I've let everything sit overnight to dry and same thing happens;
when i start the computer the screen is black, the display does not show anything, it recognizes something is there because it automatically goes to hdmi input when computer is powered up, but still says please check source. also I've noticed that the usb ports are not starting up if i leave them in, i have a bluetooth dongle and a wifi usb that never light up with LEDs, (as they would if the computer was booting up) so i don't think the gpu is the problem as far as the black screen.

so my questions from here is,
-could my motherboard be bad? i get no beeping when starting up pc, i have no diagnostic lights i can see.
-maybe my other gpu is bad as well? (I'm going to let my friend put in his pc to try it out later this week)
-or worst of all, does that mean my cpu has gone? is this a symptom of cpu?

ive removed the liquid cooling for now as i don't want it to drip on my "good" gpu, so i need a good heat sink fan for cpu cooling, any good ones between $50-$80? I'm done with liquid cooling after this mess.

if you read all of this, thanks for your time, i really appreciate the help.
thanks
 
If you don't have onboard graphics, does that mean you have one of the Intel Extreme i7 processors? All the others have onboard graphics.

I'd suspect that - at the very least - you hosed the GPUs. Do you hear any beeps when you power up?

Does your motherboard have diagnostic LEDs?

Call Dell for Tech support.
 

tony8394

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Oct 6, 2013
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no beeps. not sure if its the extreme but i would say no. its a 2012 computer. i didnt see any lights. honestly i dont know where to look but there are none on the motherboard. thanks!
also i am the 2nd owner of this pc, so i dont know how much dell would help me. worth a try i guess.
thanks
 

tony8394

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Oct 6, 2013
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sorry my processor is the i7 2600k I've read that it does actually have onboard graphics but you have to use a different mobo to take advantage of it? i don't know how true that is? anyways. i have no hdmi or any kind of video output on my mobo, just my gpu.
 


Well, how interesting Dell/Alienware found another way to work over their customers. I guess they thought to prevent confusion if multiple video outputs were visible it would be best to custom-design the mobo without the customary I/O ports on their motherboard. Now you're screed since you can't test out whether any component on the mobo is still functioning.

I guess your options are now to either buy a cheap GPU or a cheap mobo that is socket-compatible and see whether either one revives your system?

You could also buy a PSU tester (http://www.newegg.com/Product/Product.aspx?Item=N82E16899705003) and make sure the PSU is still OK (know that this isn't a load test, but if it still supplies the correct voltages on all the connectors, it should be OK). Do this before you buy replacement GPU or mobo.

Or you can either bite the bullet and take the thing to a system tech in your area or you can write it off and get/build a new PC. You may be able to salvage the case and a few components although I'd be tempted to just recycle most everything and build a new one - but then I like building computers. :) You may not.

Newer equivalent processors use a different pinout on the motherboard, so it may not be a good deal to replace that motherboard if you don't know for a fact the CPU is still good. ANd I never found a reliable way to test a CPY without having an entire alternate working rig... :(
 

tony8394

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thanks! ill try it. my friend has a good rig that he's willing to swap parts with and help me troubleshoot whats all destroyed on mine later this weekend. ill keep this updated so people behind me can get this issue figured out as well.
thanks again
 

tony8394

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Oct 6, 2013
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update,
1 gpu is confirmed bad, 2nd gpu is good because 1st gpu took in all the liquid to save 2nd gpu. motherboard is confirmed bad. cpu has not been tested, need to find out how to do that. ordering new mobo and hopefully cpu is still good. ram is still good.