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Water cooling causing hard shutoff during benchmark?

post #1 of 33
Thread Starter 
Hello fellow OCNers!

Well here is my situation. I recently added water cooling to my rig. I am running an x6 at 3.6ghz at 1.45v with ram at 1600mhz. I also have 2 gtx480s in SLI. Both the ram and video cards are running at stock clocks. I haven't had any problems gaming or benchmarking at all in the past few months. I have been running at 3.6ghz for months without an issue. Since I added water cooling, my PC just cuts off hard during benchmarking. I have to pull the power cord out of the PSU and plug it back in to restart the PC. I have an OCZ 1010w PSU. I am running 6 fans in a push/pull on my radiator and have 6 120mm case fans going, for a total of 12 fans. Swiftech MCP655 pump. Also running a raptor HD and a 1tb HD. With me having to pull the power cord out of the PSU to get it to turn back on, does that mean my PSU is not putting out enough power and cutting off? I checked my temps and its not the processor or gfx cards overheating. I would think a 1010w could handle it. If I put my processor back to stock speeds would that help at all?
post #2 of 33
You're not running anywhere near the limit of your psu, even benchmarking. I would guess that maybe, at max, you would only pull 500-600w..... so you're not maxing out what the psu is "supposed" to be rated for. It sounds like the psu is crow-barring, running into an overload condition meaning that it is defective. The clue is that it's a hard shut-down (everything turns off) and pulling the plug is the only way to reset it. That's just my guess though.

Is it a new psu? Have you tried it in another rig? It's tough when you have to load it down like that to get it to fail, crashing your rig when it's working at it's hottest and hardest.

Try another psu if you have one or can borrow one from a bud. I was able to run my overclocked i7 and a 3-way SLI of GTX260's with an Antec TruePower New 750 for some benchmarks. Good Luck!
P67A-UD4-B3
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P67A-UD4-B3
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post #3 of 33
Easiest way to check is to unplug a GPU or fans/pump (pump draws ~30w). I don't know that the PSU should be overloaded but it sure sounds like it is... Do you have a different PSU to test with?
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AC Mk-800 Cobra
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CPUMotherboardGraphicsRAM
i7 2600k ASUS P8P67 WS Revolution Zotac GTX 570 Corsair Vengeance 2x4GB 1600MHz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung SSD WD Red WD AV-GP Samsung CD/DVD Combo 
OSMonitorMonitorKeyboard
Win-7 Pro x64 HP LP3065 30" 2560x1600 Dell 1600x1200 Portrait Monoprice Gaming Keyboard w/ MX Blacks 
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post #4 of 33
Thread Starter 
Thanks for your reply! No I don't have another psi to test with, well at least not above 500w. I know for a fact it isn't overheating. Cpu doesn't go above 34c and video cards above 41c. As soon as I add the pump and these fans it cuts off under hard load. I've been gaming for months at 3.6ghz on air without a problem

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post #5 of 33
What kind of OCZ 1KW PSU?
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Bertha
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Corsair V128 + WD Green 1TB Seagate.12 1TB LG DVD Burner Sata Windows 7 Ultimate Gamer Edition 2* ASUS VH242H 
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Logitech G15 PC Power and Cooling Silencer 750W Corsair 650D Razor DeathAdder 
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post #6 of 33
Thread Starter 
Here is a snapshot of my hardware and temp monitoring info:

post #7 of 33
Thread Starter 
Well I just went into bios and set everything back to system defaults. Running at 3.2ghz. Opened Battlefield and after about 3 minutes it shut off again. It lasted about a minute longer than last time at 3.6ghz. Again, my cpu isn't going above 34c and gfx cards 41c.
post #8 of 33
Thread Starter 
One more update. I have been gaming for 20 minutes now. What I did was unplug all of my case fans and just keep my radiator fans going. So does this mean my PSU has gone to crap? It is an OCZ 1010w. All I did was unplug that fans and now it seems stable. Is it possible to be like, overloading a single power strand? I had an HD, 7 fans and my pump running off of one molex strand. Is this possible?
post #9 of 33
Thread Starter 
Well I did another benchmark and it did end up crashing again, even with all the case fans turned off. I am running everything at stock settings. So now I can game but not benchmark. So weird
post #10 of 33
Doubtful, That wouldn't be more than 3, maybe 4 amps at most. Too bad that you don't have a spare psu.

As a test, could you remove some other hardware and reinstall the fans maybe? It's possible, though unlikely, that you have a bad component. Swapping them around might lead you to the faulty one if that's what it is. I think it's just a bad psu
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