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i7 3930K 5 ghz prime95 test - Page 3

post #21 of 169
Quote:
Originally Posted by hcn View Post

So 4.6GHz, 1.375V, prime core temps in 50s is only on WC, without TEC ? In other words that are temps with 2 x 480 and 360 rad?[/quote]

Yes, that's right. That's with ambient of 25-27C. Apogee XT water block and D5 pump. smile.gif
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Obsidian
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post #22 of 169
Thread Starter 
That's nice. Currently experimenting with 5 ghz clock on LLC medium and offset for Vcore and x50 multiplier. Running p95 almost 3 hours and so far good. Ambient temp 26 C, max CPU temp 60 C and max core temp 82 C ( just one core ). Also reduced pwm settings regarding power phase control. I also consider getting 420 rad and maybe better cpu block in attempt to reduce core temp for 3-5 C, if possible.
Edited by hcn - 6/6/12 at 2:17pm
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post #23 of 169
Quote:
Originally Posted by hcn View Post

That's nice. Currently experimenting with 5 ghz clock on LLC medium and offset for Vcore and x50 multiplier. Running p95 almost 3 hours and so far good. Ambient temp 26 C, max CPU temp 60 C and max core temp 82 C ( just one core ). Also reduced pwm settings regarding power phase control. I also consider getting 420 rad and maybe better cpu block in attempt to reduce core temp for 3-5 C, if possible.

Again 5GHz is awesome! Your temps are OK. 82C is a bit high on that core, so don't run prime95 for too long.
Reducing pwm setting is a good move. I don't really think they have much impact on OC frequency. Higher settings do generate much more heat around the CPU.
Getting more rad? Seriously that will make no difference since you already have 10x120mm thumb.gif You could add a pump though.
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post #24 of 169
Thread Starter 
The idea is to reduce the total number of radiators in a way that I remove 2x 360 radiators and replace them with 420 radiator. Total area of the radiator surface will not be reduced significantly, and I hope neither the thermal performance of new combination ( simulation with martin pump/rad optimizer ). So i would keep that UT60 360 rad and add Alphacool NexXxoS UT60 Full Copper 420mm rad. The remaining free space i would use for better case air ventilation, especially around cpu area. What is the advantage of additional pump in terms of thermal efficiency? What thermal benefit could i expect? From better flow, less restriction, efficient heat exchange ? Thanks for the replay
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post #25 of 169
Temps and volts are high for my liking... 500w for prime?! Uh....
 
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post #26 of 169
Thread Starter 
Well, it's OC - with all risk in package biggrin.gif . For some worth, others not.
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X6 3930K
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i7 3930K  Asus Rampage 4 Extreme Black Edition XFX ATI HD 5850 Corsair Vengeance  
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WDC WD30EURS-73TLHY0 (3000 GB, SATA-II) Alphacool NexXxos XP3 CPU Water Block brass  Alphacool 420 UT60, Alphacool 420 XT, Phobya 42... EK 5850 GPU block  
CoolingCoolingOSPower
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post #27 of 169
Curious what cpu block you guys are using?

I'm thinking about doing a 2011 cpu setup but haven't decided yet.. I've done SB and IB and looking for something different.
post #28 of 169
I'm still just using my RASA block...
 
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12x 4TB HGST 5K4000 SanDisk SSD 960GB (cache) 6x 8TB WD Red Scythe AP-29 
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post #29 of 169
Thread Starter 
Me too
X6 3930K
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i7 3930K  Asus Rampage 4 Extreme Black Edition XFX ATI HD 5850 Corsair Vengeance  
Hard DriveCoolingCoolingCooling
WDC WD30EURS-73TLHY0 (3000 GB, SATA-II) Alphacool NexXxos XP3 CPU Water Block brass  Alphacool 420 UT60, Alphacool 420 XT, Phobya 42... EK 5850 GPU block  
CoolingCoolingOSPower
HEATKILLER® MB-X ASUS RAMPAGE IV Black Edition... Laing DDC 1T plus pump x 2 Windows Server 2012 R2, Windows 10 Pro, Windows... Corsair AX850 
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Xigmatek Elysium 
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X6 3930K
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CPUMotherboardGraphicsRAM
i7 3930K  Asus Rampage 4 Extreme Black Edition XFX ATI HD 5850 Corsair Vengeance  
Hard DriveCoolingCoolingCooling
WDC WD30EURS-73TLHY0 (3000 GB, SATA-II) Alphacool NexXxos XP3 CPU Water Block brass  Alphacool 420 UT60, Alphacool 420 XT, Phobya 42... EK 5850 GPU block  
CoolingCoolingOSPower
HEATKILLER® MB-X ASUS RAMPAGE IV Black Edition... Laing DDC 1T plus pump x 2 Windows Server 2012 R2, Windows 10 Pro, Windows... Corsair AX850 
Case
Xigmatek Elysium 
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post #30 of 169
XSPC Raystorm, and now an Apogee HD.

I'm testing out a new OC right now, I haven't been able to get anything above 4.8 100% stable using the offset mode for vcore.

Now I'm trying out a different approach. Using the 125 strap and then dropping the BCLK down to ~114 MHz. So far looking good at 4.8 and 1.344V on load (1.385 in BIOS) with medium LLC.

Not an original idea I know, I saw JediJaxrf using it during the folding challenge. Seems to be alot more stable or maybe it's just my particular chip likes it.
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