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Lost stability, random power-offs.

post #1 of 4
Thread Starter 
Okay, so I keep tinkering with my motherboard, trying to squeeze a little more out of my system. I've been trying to get my motherboard stable at 3Ghz since I've hit my thermal barrier on the CPU.

Well, everything seemed fine for the most part, bringing up some voltages here and there, I wasn't neccesarily stable under load, but she was running decent. Anyways, right now it the whole machine will randomly just turn off. No BSOD, just off. The power supply is definitely throwing some toasty heat, but I really don't think I'm exceeding its rating, I have no video card.

Am I encountering this from a lack of voltage or a hardware issue? I tried bringing my settings back to my stable 4Ghz CPU/ somewhat stock NB but its still happening.

Settings off the top of my head;

1.45 Vcore, 1.37 CPUNB, 3Ghz for NB Multiplier. Memory timings were back at stock with that FSB @ 300. DRAM voltage at the rated 1.65V

Ideas? I've tried tweaking the miscelaneous voltages up just a tad to achieve an overall boost, but no luck. I've also tried dropping my CPU back down a tad, 13x, 13.5x multi, dropping voltage (ALOT less voltage needed for 3.8Ghz sadly)
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Got Overhead?
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1055t @ ~4Ghz Asus M4A89GTD Pro USB3 Asus GeForce 250 GTS G Skillz 2x2GB DDR3 1600 @ 7-8-7-24 
Hard DriveOptical DriveCoolingOS
Muskin 60GB SSD, WD 500GB, WD 80GB LG 24x Multi Corsair H50 modded. Winblows 7 
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2 x 19FP Dells, Samsun 50" Logictech DiNovo Antec AX750 Thermaltake Chaser Mk 1 
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post #2 of 4
Sounds like a PSU issue to me
    
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CPUMotherboardGraphicsRAM
i7 2600k ASRock P67 Extreme4 MSI GTX 580 Lightning 2x4GB Corsair Vengeance DDR3 1866 9-10-9-27-1T 
Hard DriveOptical DriveCoolingOS
Mushkin 60GB SSD + 2xWD Black 500GB RAID0 Sony DVD-RW Noctua NH-D14 Windows 7 
MonitorKeyboardPowerCase
LG 22" 1080p + Acer 18" Das Keyboard - MX Blue Antec TruePower New TP-650 Cooler Master HAF 922 Black 
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Logitech 
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post #3 of 4
psu will overheat when too stressed and will cause a power-off. check to make sure your PSU fan is still running. Also it does sound like a PSU issue either way
Dell Optiplex 745
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Dell Optiplex 745
(10 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 (incoming) Dell proprietary Intel Q965 Express Chipset XFX HD 5770 (incoming) 4GB Patriot DDR2 800 
Hard DriveOptical DriveCoolingOS
Hitachi Deskstar 160GB 7200RPM DVDRW Stock Windows XP 32 (for the time being) 
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post #4 of 4
Thread Starter 
Okay, I was thinking more about it overnight and I agree. Sadly, I can't imagine how I have come anywhere near this PSU's capacity... which is why I was surprised to feel a bit of heat coming out of it. Apparently it intakes from chassis, I don't know if this is standard anymore, I guess it would make sense seeing as how many have died due to dust intake.

Anyone think I should RMA for exchange or just get a different psu?

I can try to increase airflow into it, but I can't imagine getting much more than I have. I have 3 80mm case fans up front, my Corsair H50 with two 78CFM fans which move ALOT of air. I don't have any exhaust fan setup yet, I'm planning on putting my 140mm as a blowhole fan, but regardless, all this positive pressure should be going out the PSU since its exhausting anyways.
Edited by briangp - 2/25/11 at 10:38am
Got Overhead?
(14 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1055t @ ~4Ghz Asus M4A89GTD Pro USB3 Asus GeForce 250 GTS G Skillz 2x2GB DDR3 1600 @ 7-8-7-24 
Hard DriveOptical DriveCoolingOS
Muskin 60GB SSD, WD 500GB, WD 80GB LG 24x Multi Corsair H50 modded. Winblows 7 
MonitorKeyboardPowerCase
2 x 19FP Dells, Samsun 50" Logictech DiNovo Antec AX750 Thermaltake Chaser Mk 1 
Mouse
Microsoft Trackball Explorer! 
  hide details  
Reply
Got Overhead?
(14 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1055t @ ~4Ghz Asus M4A89GTD Pro USB3 Asus GeForce 250 GTS G Skillz 2x2GB DDR3 1600 @ 7-8-7-24 
Hard DriveOptical DriveCoolingOS
Muskin 60GB SSD, WD 500GB, WD 80GB LG 24x Multi Corsair H50 modded. Winblows 7 
MonitorKeyboardPowerCase
2 x 19FP Dells, Samsun 50" Logictech DiNovo Antec AX750 Thermaltake Chaser Mk 1 
Mouse
Microsoft Trackball Explorer! 
  hide details  
Reply
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