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Do these voltages sound safe? qx9650

post #1 of 3
Thread Starter 
Hey guys last night I hit my 4ghz goal with my new 780i FTW, amazingly I have it running stable at only 1.28V, this i am sure is safe..but I was curious about these other voltages.

CPU 1.28V safe I know

CPU FSB 1.175V "marked as green,but can I go lower?"

MEM 2.2V safe.

SPP(north bridge) 1.40v "marked as green,but can I go lower?"

and that's all I messed with does any of that sound high?
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel QX9560 EVGA 780i FTW  (X2 SLI) EVGA GTX 460 8gb HyperX 1066 running @ 800mhz 
Hard DriveOptical DriveOSPower
WD Velociraptor 10k rpm 300gb Asus Win 7 Home Premi x64 ULTRA x4 1050 watt 
Case
ULTRA ALUMINUS 
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post #2 of 3
You have a different board, but for what it's worth, here's my dual core Wolfdale's settings for those (minus the RAM and board as those differ).

The CPU's FSB Termination (VTT) is ~1.15V. This is with a FSB of 400MHz (1600MHz). 1.15V is the stock setting, and this generally doesn't need raised with lower FSB speeds, but higher ones may need it raised, likewise for the quad core CPUs. ~1.25V is good. You can try lower, but it's certainly sake there. I've hear they are fine up to ~1.4V, but I wouldn't know.

Your core voltage is good. My dual core needs less at 1.248V (idle; load is ~1.224V-1.232V), but it's not a stellar, so the good ones even less. Still, 1.28V is good for the quad core ones.

It sounds like you can go higher if you want, or, if you're like me, stay at 4GHz and enjoy the bfits if you don't need the last few hundred MHz. ~4GHz is the Woldfale's sweet spot power/performance-wise (at least for the dual cores, this value may be lower since the quad cores use more power).

Per the RAM, I think 2.2V is getting up there for DDR2. I wouldn't go higher. Mine is at 1.9V (but it's also at stock).

I can't speak for the chipset, as mine differs.

I'd say it all looks good.
post #3 of 3
Thread Starter 
Ok cool, the memory is meant to run at 2.2- 2.3 v so that is good, im sure I could bare to lower it tho, my main concern is the north chip voltage, I don't plan to go any higher I just want 4 ghz and max hardware life which is why im looking at lowest voltages possible without killing the performance/ stability

Thanks for the info tho this helps! cheers.gif
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel QX9560 EVGA 780i FTW  (X2 SLI) EVGA GTX 460 8gb HyperX 1066 running @ 800mhz 
Hard DriveOptical DriveOSPower
WD Velociraptor 10k rpm 300gb Asus Win 7 Home Premi x64 ULTRA x4 1050 watt 
Case
ULTRA ALUMINUS 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel QX9560 EVGA 780i FTW  (X2 SLI) EVGA GTX 460 8gb HyperX 1066 running @ 800mhz 
Hard DriveOptical DriveOSPower
WD Velociraptor 10k rpm 300gb Asus Win 7 Home Premi x64 ULTRA x4 1050 watt 
Case
ULTRA ALUMINUS 
  hide details  
Reply
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