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overclocking 990x

post #1 of 4
Thread Starter 
This is a dumb ass question, but here it goes. I have been building and gaming with pc's since i was the intel 386's. However I have only overclocked my cpu since joining this site. I only know the basics, and I'm def. not really good at it.


My question is I have noticed in the intel overclocking thread, people with CPU multi's in the 40's. Can someone explain to me the benefits with doing that rather then the way i have it now (which is my multi at 32). Would I be better off trying it that way with a 990X? By upping the multi, i can keep my bclock lower, but not sure if it is faster doing it that way, or the way i have it. Or would i be able to go even higher that way. Like i said i dont really have a grasp on overclocking to the point where im at 4.4 now, and would def have to start making changes to other things besides ram, bclock ect. moving forward towards 5ghz.

thanks in advance.
 
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Intel i7 Extreme Edition Processor Haswell  Alienware 18 NVIDIA GeForce GTX 780M  NVIDIA GeForce GTX 780M  
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My System
(19 items)
 
 
CPUMotherboardGraphicsGraphics
Intel i7 Extreme Edition Processor Haswell  Alienware 18 NVIDIA GeForce GTX 780M  NVIDIA GeForce GTX 780M  
RAMHard DriveOS
32 gig 1600mhz dual channel Samsung SSD Windows 7 ultimate edition (64-bit) 
CPUMotherboardGraphicsGraphics
Intel Core i7 Extreme 990X P6T DELUXE V2 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
RAMRAMHard DriveHard Drive
Corsair  Corsair  OCZ, 120GB Apex Series SSD,  Western Digital WD VelociRaptor WD3000HLHX 300G... 
Hard DriveHard DriveOptical DriveOS
Western Digital WD VelociRaptor WD5000HHTZ 500G... 1 x Seagate Barracuda ST1000DM003 1TB 7200 RPM ... Samsung Sh-s223 22X Windows 7 ultimate 64-bit 
MonitorMonitorKeyboardPower
SAMSUNG SyncMaster 305T Black 30" 6ms(GTG) Wide... ASUS VG248QE Black 24" 144Hz 1ms (GTG) HDMI Wid... microsoft razor CORSAIR HX Series CMPSU-1000HX 1000W Compatible... 
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post #2 of 4
The lower the BCLK the less heat generated by the CPU. So generally the lower your BCLK and the higher your CPU multi the better off you are.

With that said what you need to do is to find a BCLK, CPU multi, QPI multi, Uncore Multi and a Mem Multi that gives you the overclock you want while trying to keep your BCLK as low as possible to get the overclock, QPI Freq, Uncore Freq and DRAM freq that you want.
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Hard DriveOptical DriveCoolingOS
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by idahosurge View Post
The lower the BCLK the less heat generated by the CPU. So generally the lower your BCLK and the higher your CPU multi the better off you are.

With that said what you need to do is to find a BCLK, CPU multi, QPI multi, Uncore Multi and a Mem Multi that gives you the overclock you want while trying to keep your BCLK as low as possible to get the overclock, QPI Freq, Uncore Freq and DRAM freq that you want.


What settings did you wind up ending with , with your overclock? I'm just curious. I was afraid to go higher then 33 with my multiplyer. Might try it later on though.
 
My System
(19 items)
 
 
CPUMotherboardGraphicsGraphics
Intel i7 Extreme Edition Processor Haswell  Alienware 18 NVIDIA GeForce GTX 780M  NVIDIA GeForce GTX 780M  
RAMHard DriveOS
32 gig 1600mhz dual channel Samsung SSD Windows 7 ultimate edition (64-bit) 
CPUMotherboardGraphicsGraphics
Intel Core i7 Extreme 990X P6T DELUXE V2 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
RAMRAMHard DriveHard Drive
Corsair  Corsair  OCZ, 120GB Apex Series SSD,  Western Digital WD VelociRaptor WD3000HLHX 300G... 
Hard DriveHard DriveOptical DriveOS
Western Digital WD VelociRaptor WD5000HHTZ 500G... 1 x Seagate Barracuda ST1000DM003 1TB 7200 RPM ... Samsung Sh-s223 22X Windows 7 ultimate 64-bit 
MonitorMonitorKeyboardPower
SAMSUNG SyncMaster 305T Black 30" 6ms(GTG) Wide... ASUS VG248QE Black 24" 144Hz 1ms (GTG) HDMI Wid... microsoft razor CORSAIR HX Series CMPSU-1000HX 1000W Compatible... 
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My System
(19 items)
 
 
CPUMotherboardGraphicsGraphics
Intel i7 Extreme Edition Processor Haswell  Alienware 18 NVIDIA GeForce GTX 780M  NVIDIA GeForce GTX 780M  
RAMHard DriveOS
32 gig 1600mhz dual channel Samsung SSD Windows 7 ultimate edition (64-bit) 
CPUMotherboardGraphicsGraphics
Intel Core i7 Extreme 990X P6T DELUXE V2 NVIDIA GeForce GTX 580 NVIDIA GeForce GTX 580 
RAMRAMHard DriveHard Drive
Corsair  Corsair  OCZ, 120GB Apex Series SSD,  Western Digital WD VelociRaptor WD3000HLHX 300G... 
Hard DriveHard DriveOptical DriveOS
Western Digital WD VelociRaptor WD5000HHTZ 500G... 1 x Seagate Barracuda ST1000DM003 1TB 7200 RPM ... Samsung Sh-s223 22X Windows 7 ultimate 64-bit 
MonitorMonitorKeyboardPower
SAMSUNG SyncMaster 305T Black 30" 6ms(GTG) Wide... ASUS VG248QE Black 24" 144Hz 1ms (GTG) HDMI Wid... microsoft razor CORSAIR HX Series CMPSU-1000HX 1000W Compatible... 
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post #4 of 4
You can use this to check out different BCLK's and multi's, use the i7 975XE for your 990X
http://icrontic.com/files/apps/nehalem-calc/

Here are my BIOS 4.44GHz OC settings. Your P6T Dv2 will not have all the settings that my R3E does, so don't worry that your BIOS does not show everything that I posted below.

Overclock Settings July 11, 2011 (4.44GHz) BIOS 1301M
LN2 Mode: Disabled
QPI Loadline Calibration: Disabled
AI Overclock Tuner: Manual
OC From CPU Level Up: Auto
2D Performance Booster: Disabled
CPU Ratio Setting: 27
CPU Turbo Power Limit: Disabled
BCLK Frequency: 164
PCIE Frequency: 100
DRAM Frequency: DDR3 1644MHz
UCLK Frequency: 3287MHz
QPI Link Data Rate: 7233MT/s
Memory Recheck: Disabled
Memory Configuration Protect: Disabled

DRAM Timing Control
1st Information :
CAS# Latency: 6
DRAM RAS# to CAS# Delay: 7
DRAM RAS# PRE Time: 6
DRAM RAS# ACT Time: 18
2nd Information :
DRAM Timing Mode: 1N

CPU Differential Amplitude: Auto
CPU Clock Skew: Auto
IOH Clock Skew: Auto
Digi+ Pwr Mode: T-Balanced
PWM Volt. Control: Auto
Load-Line Calibration: Full Calibration
CPU Voltage OCP: Enabled
CPU PWM Frequency: Auto
Extreme OV: Disabled
Extreme OC: Auto
CPU Voltage: 1.36875
CPU PLL Voltage: 1.82850
QPI/DRAM Core Voltage: 1.37500
DRAM Bus Voltage: 1.66950
IOH Voltage (NB): 1.20575
IOH PCIE Voltage (NB): Auto (1.51)
ICH Voltage (SB): 1.20575
ICH PCIE Voltage (SB): Auto
CPU Spread Spectrum: Disabled
PCI Spread Spectrum: Disabled

Advance CPU Settings
CPU Ratio Setting: 27
C1E Suppport: Disabled
Hardware Prefetcher: Enabled
Adjacent Cache Line Prefetch: Enabled
MPS and ACPI MADT Ordering: Modern Ordering
Intel® Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
Intel HT Techology: Disabled
Active Processor Cores: All
A20M: Disabled
Intel SpeedStep Tech: Disabled
Intel C-STATE Tech: Disabled

Advanced Menu: PCIPnP
PNP OS = Yes
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
4770K @ 4.7GHz / 4400MHz Asus Sabertooth Z87 Gigabyte GTX 780 OC 8GB G.Skill Trident X 9-11-11-31-1T @ 2400MHz 
Hard DriveOptical DriveCoolingOS
OS SSD 840 Pro 256GB / FSX SSD 840 Pro 256GB LG DVD Thermalright SB-E x2 Win7 Ult 64b 
MonitorKeyboardPowerCase
Viewsonic VP2655wb 25.5" IPS LCD Logitech Wireless EX1110 w/Mouse Corsair AX860i CM HAF-X 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
4770K @ 4.7GHz / 4400MHz Asus Sabertooth Z87 Gigabyte GTX 780 OC 8GB G.Skill Trident X 9-11-11-31-1T @ 2400MHz 
Hard DriveOptical DriveCoolingOS
OS SSD 840 Pro 256GB / FSX SSD 840 Pro 256GB LG DVD Thermalright SB-E x2 Win7 Ult 64b 
MonitorKeyboardPowerCase
Viewsonic VP2655wb 25.5" IPS LCD Logitech Wireless EX1110 w/Mouse Corsair AX860i CM HAF-X 
  hide details  
Reply
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