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i7 950 4.0 Stable... My first OC since 2003

post #1 of 5
Thread Starter 
Spent a few days researching, a few days letting parts (and myself) acclimatize and generally set my system up how i wanted it. This replaced a Q6600 based PC that died a month ago.

My last OC was a P4 something-or-other 3.06 with HT that i OC'd to 3.32. I think i had a whopping 2GB of RAM and 2 80GB HDD's lol. Was a decent system for '03; 24" CRT, DVD burner, SB sound, 5.1 500 watt surround (home theatre components).

New system is basically a web/email/guest computer as well as media server, that on occasion ill edit a bit of AVCHD on. I spent about an hour testing configurations until i hit on this one; so far its 38 hours of prime95 stable and intel burn test wont take temps over 75c. More importantly, i tested it with Adobe CS5 which we use extensively at work (on i7 980X systems) and processor hungry AVCHD; no hiccups, hangs, or BSOD's.

Components in my sig. Twin 1.5TB USB 3.0 drives will be here soon to store HD movies on. I would like to bump up the RAM speed to 1700Mhz and keep it tight at 8-8-8-20, but for now im happy at 1395 Mhz.

Voltages all seem ok to me, or are they too high? Again i am completely stable, but would love to back off voltages (and heat) if possible. Wouldnt mind hitting 4.2 stable a bit later.



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i7 980x Rampage III Gene GTX660 24GB Kingston HyperX 9/9/9/24 1600Mhz 
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Vertex 2 120GB Areca 1222 with 8 Samsung HM500JJ Pioneer BDR-206BK/DVD-RW Lots of fans 
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Windows 7 x64 ACER 2560x1440P IPS LED LCD Microsoft and CS6 Editing keyboards EVGA 850w PSU 
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Work PC
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 980x Rampage III Gene GTX660 24GB Kingston HyperX 9/9/9/24 1600Mhz 
Hard DriveHard DriveOptical DriveCooling
Vertex 2 120GB Areca 1222 with 8 Samsung HM500JJ Pioneer BDR-206BK/DVD-RW Lots of fans 
OSMonitorKeyboardPower
Windows 7 x64 ACER 2560x1440P IPS LED LCD Microsoft and CS6 Editing keyboards EVGA 850w PSU 
CaseMouseMouse PadAudio
HAF 932 (Black/Blue) generic generic Built in 7.1 
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post #2 of 5
What is your LLC setting ?
Edited by Edsurf987 - 1/5/11 at 8:58am
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Tropical Blend
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60gb OCZ Agility ssd + 3 hdd 2 X Laing ddc 1+ T / 360 Phobya + 240 TFC p&p Seven Ultimate 64 Viewsonic 28" 
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post #3 of 5
Do I read 1.81 QPI VTT voltage? get those down immediatelly or you'll fry your processor.

For 4Ghz you should need no more than 1.39 QPI/VTT, always stay below 1.5 with air and water cooling.

UPDATE: My Mistake, I read 1.8 QPI VTT intead of 1.8QPI PLL hehe

Try lowering those voltages, intel standard spec is 1.8v, less voltage could actually help improve stability, try everything from (1.4-1.89v), I would recommend leaving it at 1.8v
Edited by PeterWar - 1/5/11 at 9:05am
    
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Intel Core i7 950 Gigabyte X58 Extreme (WC chipset, No Silent Pipe)) AMD/ATI RADEON 5970 OC vBIOS 1.26 3x2Gb OCZ Platinum PC 12800 7-7-7@1.65v 
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CPUMotherboardGraphicsRAM
Intel Core i7 950 Gigabyte X58 Extreme (WC chipset, No Silent Pipe)) AMD/ATI RADEON 5970 OC vBIOS 1.26 3x2Gb OCZ Platinum PC 12800 7-7-7@1.65v 
Hard DriveOptical DriveOSMonitor
2xIntel x-25M GEN2 160 GB SSD RAID 0,4x1TB RAID5 LG Blue Ray RW Windows 7 Ultimate x64 Samsung 22" T220HD 1680x1050p 
KeyboardPowerCaseMouse
Logitech Wireless Keyboard Enermax Evolution 85+ Lian-li V2000B (Modded by Little Devil) Logitech Wireless Mouse 
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post #4 of 5
Quote:
Originally Posted by PeterWar View Post
Do I read 1.81 QPI VTT voltage? get those down immediatelly or you'll fry your processor.

For 4Ghz you should need no more than 1.39 QPI/VTT, always stay below 1.5 with air and water cooling.
Where you getting that value from? His Vtt/QPI is labeled as "QPI/DRAM Core" which is safely at 1.303v.
post #5 of 5
Thread Starter 
lol you seriously freaked me out for a minute; i double checked everything. Upped BCLK to 181.

LLC is enabled, HT is enabled. Spread is disabled. New voltages; dropped across the board. Changed these in Asus' Turbo Evo V (will change in BIOS momentarily). I can hit 4.33 (1500Mhz RAM) stable (needs more voltage though) whilst encoding AVCHD to h.264 Blu Ray... Im tempted to go for 4.4

BCLK 181 (x23=4.2Ghz)
CPU 1.3125 (Actual 1.263V)
CPU PLL 1.51
QPI/DRAM 1.343
DRAM 1.629
CPU PLL 1.51
ICH 1.126
IOH 1.126

Seems stable so far; running slightly cooler (CPU 36c, ICH/IOH 48c) so both are down 2c, and RAM is down 3c as well (34c from 37c)

My CPU voltage of 1.31/1.26 (which i dropped a lot) seems low, as does the CPU PLL at 1.51 for it to run stable... Prime95 while encoding some AVCHD will tell. Im actually impressed by what the cheap little H50 can do for cooling.

I would like to reclock the ram to 17xx Mhz, just for the hell of it, and keep my 8-8-8-20 timings, or at minimum tighten up timings and keep speed at the (now current) 1450Mhz. Its Corsair XMS3 12800 (1600) ram with stock 9-9-9-24 timings; any ideas on which to pursue? I would prefer to both increase speed and tighten timings, but i cant seem to find a decent guide that pertains to the RAM i have.
Edited by Oglethorpe - 1/5/11 at 10:24am
Work PC
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 980x Rampage III Gene GTX660 24GB Kingston HyperX 9/9/9/24 1600Mhz 
Hard DriveHard DriveOptical DriveCooling
Vertex 2 120GB Areca 1222 with 8 Samsung HM500JJ Pioneer BDR-206BK/DVD-RW Lots of fans 
OSMonitorKeyboardPower
Windows 7 x64 ACER 2560x1440P IPS LED LCD Microsoft and CS6 Editing keyboards EVGA 850w PSU 
CaseMouseMouse PadAudio
HAF 932 (Black/Blue) generic generic Built in 7.1 
  hide details  
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Work PC
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 980x Rampage III Gene GTX660 24GB Kingston HyperX 9/9/9/24 1600Mhz 
Hard DriveHard DriveOptical DriveCooling
Vertex 2 120GB Areca 1222 with 8 Samsung HM500JJ Pioneer BDR-206BK/DVD-RW Lots of fans 
OSMonitorKeyboardPower
Windows 7 x64 ACER 2560x1440P IPS LED LCD Microsoft and CS6 Editing keyboards EVGA 850w PSU 
CaseMouseMouse PadAudio
HAF 932 (Black/Blue) generic generic Built in 7.1 
  hide details  
Reply
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