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3.3V Rails.... anyone had experience with to weak or failing one? - Page 2

post #11 of 14
Thread Starter 
Quote:
Originally Posted by Original Sin View Post

Have you tested it without the extension cable?

I'm going to test both the MK III and ST1500 tonight with/without the extension cable... can't believe i haven't done that yet. I'll feel pretty silly if it is the extension cable lol
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post #12 of 14
Where are you dude?... we need updates, Updates!
post #13 of 14
Thread Starter 
Quote:
Originally Posted by Original Sin View Post

Where are you dude?... we need updates, Updates!

Ok, so I hooked the ST1500 up through the 24pin Extention cable and guess what.... it was low (3.08-2.99V) vs being 3.2-3.3V without the extension. That is a considerable drop. Things started acting funny as well (i.e. storage drive disappeared when I accessed it in windows, BSOD booting to windows from my SSD). :/ I then hooked the ST1500 back up to the board directly and voltages were back at 3.2ish.

Needless to say I completely removed ALL of my "purdy" cable extensions from video cards, 8 pins, all molex connectors I could, and the 24 pin. I hooked them all directly to the board/devices from the MK III 1200 and fired her up. BIOS reported 3.3V exactly biggrin.gif. up .2V or better from before. So it looks lie the damn cable extensions were the evil within my system rolleyes.gif. All of the years in electronics and knowing about voltage drops/resistance in connectors ect. and I didn't give it a thought in this case.... I swear, its always the stupidest things lol.

It also makes sense why more amperage on the ST1500 was kind of "working" vs the lower amperage on the MK III due to the voltage drop in the crappy extension cables... No more extension cables for this guy.... ever.

I have not gotten to properly test that this has remedied my situation but I did fire up the trooper and start Warfighter successfully (with my 4.2Ghz overclock). biggrin.gif Makes me wonder if my second GTX 670 doesn't perform as well as my first because it had an extension cable on one of the 6 pin inputs (lower V in on that 6 pin). I hope that It clocks like my other 670 now... because both at 1320Mhz+ would be saweet!!

I'll update after I get home and run some more testing.... and update PCP&C of my, um.... blunder because I will probably not need an RMA now.

Kp
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Force1
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Supa Troopa
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Xeon x5679 Xeon x5679 EVGA SR-2 Classified 3-Way SLi GTX Titan 
RAMHard DriveHard DriveHard Drive
Force1 AVEXIR Green/White OCZ Vertex 4 Samsung 840 Pro Raid 0 WD Black Raid 0 
Optical DriveCoolingCoolingCooling
Slim DVD-RW XPSC Raystorm Full Copper CPU Block XPSC Raystorm Full Copper CPU Block MIPS SR-2 Blocks 
CoolingCoolingCoolingOS
swiftech mcp35x2 Watercool MO-RA3 420 Core Radiator Copper Tubing Win 7 Ult x64 
MonitorMonitorMonitorKeyboard
AOC 22" AOC 22" AOC 22" Razer Blackwidow Ultimate 
PowerCaseMouseAudio
Dual Silverstone ST1500 Watt PSU's Custom Lanli PC-7077 with inverted SR-2 Mobo Tray Logitech G9 Integrated Optical 
CPUMotherboardGraphicsGraphics
Intel Xeon x5650 EVGA x58 Classified EVGA GTX 480 EVGA GTX 480 
RAMRAMHard DriveHard Drive
OCZ Gold Corsair XMS WD Caviar WD Caviar Black 
Hard DriveOptical DriveCoolingCooling
OCZ Vertex 4 Pioneer Bluray RW EK HF Gold CPU Block GTS Stealth 280 Rad 
CoolingCoolingCoolingCooling
Koolance PMP400 pump Lamptron FC5 Fan Controller Auquacomputer Auquatube Reservoir Enzotech Chipset Block 
CoolingOSMonitorMonitor
SR1 240 Rad Windows 7 Ultimate 64bit AOC e2243Fwk AOC e2243Fwk 
MonitorKeyboardPowerCase
AOC e2243Fwk Razor Blackwidow Ultimate PC Power & Cooling MKIII 1200W Silentpower Coolermaster Storm Trooper 
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post #14 of 14
smile.gif

It's good you got it sorted out, it was a really strange issue to begin with, try to play with the mobo/CPU voltages too, you might be able to get stability at lower values as well. smile.gif
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