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i7-950, GA EX58-UD5, Geil 2000Mhz Triple Channel

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I

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Joined
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8 Posts
Discussion Starter · #1 ·
Hello, I'm new on forum and I need help whit overclock.

This is my configuration:

MB: Gigabyte EX58-UD5
CPU: i7-950
Cooler: Cooler Master V8
Graphics cards: SLI, 2xGTX460 Gainward Golden Sample
Memory: GEIL, 3x2Gb (2000 MHz) DDR3, Ultra Triple Channel
Hard disk drives: Western Digital (Black), 2x640GB SATA3, 64 MB (RAID)
DVD Rom drive: Samsung DVD-RW
Case: NZXT Apollo
Power Supply: Chieftec 750W
Keyboard: Razer Lycosa
Mouse: Razer Imperator
Mouse pad : Razer Destructor

=====>>
My computer work stable whit memory 1333MHz, but I can't make to work at 2000MHz.
This is my DDR3 memory:
http://www.geil.com.tw/products/showSpec/id/149

Work stable whit this settings:
CPU Clock Ratio: 24X
BLCK Frequency: 166
System Memory Multiplier: 10
Memory latency: 9-9-9-28

CPU Vcore: 1.30V
QPI/Vtt Voltage: 1.495V
IOH core: Auto
Dram Voltage: 1.640V

Processor work at: 3984MHz but memory at 1333MHz (9-9-9-28)
I tried memory and at 1970MHz and Windows start, but it's not stable work.

What should I need to do, to make memory to work at 2000MHz.?

cpu-z.jpg
 
10acjed

· Premium Member
Joined
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6,800 Posts
#3 ·
Hi there, welcome to Overclock.net...

First go here - http://www.overclock.net/specs.php?do=addsystem and fill in your system specs. Then they show up in every post. It helps...

First off I am going to assume you ran a prolonged stress test at your current settings and ram at 1333 and it was stable.
Just booting to windows doesn't mean its stable. Intel Burn Test works good for short tests, but tend to heat your cpu up a bit. Prime95 is another but takes a good 8 - 10 hours, your cpu wont get quite as hot tho..

Here is a template of your bios.. I made some changes in red, the rest are from someone else's bios, so go through them and put in what you have them set to...

Code:

Code: 
CPU: Intel Core i7 950
BIOS: F12
Motherboard: Gigabyte EX58-UD5
RAM:  (3x 2GB) Geil  GU36GB2000C9TC | 2000MHz CL9-9-9-28

Advanced CPU Features:
[B]CPU Clock Ratio ................................ [23x][/B]
Intel(R) Turbo Boost Tech .................. [disabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Disabled]
C3/C6/C7 State Support .................... [Disabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Disabled]
Bi-Directional PROCHOT ..................... [Enabled]

Uncore & QPI Features:
QPI Link Speed .............................. [7.2 GHz] (x36 clock Ratio)
Uncore Frequency .......................... [3200 MHz] ( x16 Uncore Clock Ratio)
Isonchronous Frequency .................. [Enabled]

Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) ..................... [200]
[B]PCI Express Frequency (MHz) ........... [101][/B]
C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive .............................. [700 mV]
PCI Express Clock Drive ................... [700 mV]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]

Advanced DRAM Features:
Performance Enhance ...................... [Standard]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [x8]
DRAM Timing Selectable (SPD) .......... [Auto]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ...................... [ 9 ]
tRCD ....................................... [ 9 ]
tRP ......................................... [ 9 ]
tRAS ....................................... [28]
[B]Command Rate (CMD) ........... [ 2 ][/B]
Memory Frequency ............... [1333 MHz]

[B]Advanced Voltage Control:
[/B]
CPU
Load Line Calibration ................. [Enabled]
[B]CPU Vcore ............................... [1.325V][/B]
[B]QPI/VTT Voltage ..................... [1.35][/B]
CPU PLL .................................. [1.88V]

MCH/ICH
[B]PCIE 1.500v ........................... [1.50][/B]
[B]QPI PLL 1.100v ....................... [1.20][/B]
IOH Core 1.100v ..................... [1.24V]
ICH I/O 1.500v ....................... [Auto]
ICH Core 1.1v ........................ [Auto]

DRAM
[B]DRAM Voltage .......................  [1.660v] [/B]
All other settings [AUTO]
 
M

· Registered
Joined
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1,379 Posts
#4 ·
intell data sheets list max voltages for i7 900 series as
CPU Core - 1.55
CPU VTT - 1.35
Stay under these and try to get it stable with the lowest voltage you can.
I have my I7-950 running 4.0ghz 24/7 stable ( its running great! ). Here are my numbers hope its a little help to you!

CPU-Z

http://valid.canardpc.com/show_oc.php?id=1681159

Freq : 4022.05 MHz (191.53 * 21)

E-LEET

+3.3v

3.23v
cpu vcore

1.32v
dram

1.52v
cpu vtt

1.27v
nb core

1.30v
+5v

4.96v
+12v

12.11v
vsb3v

3.28v
vbat

3.18v

Temps at load! ( 24hrs+ PRIME 95 )

cpu

55.0c
vreg

72.0c
system--34.0c

core#1--67.0c
core#2--67.0c
core#3--66.0c
core#4--62.0c
 
M

· Registered
Joined
·
1,379 Posts
#5 ·
Quote:
Originally Posted by 10acjed;12981780
Hi there, welcome to Overclock.net...

First go here - http://www.overclock.net/specs.php?do=addsystem and fill in your system specs. Then they show up in every post. It helps...

First off I am going to assume you ran a prolonged stress test at your current settings and ram at 1333 and it was stable.
Just booting to windows doesn't mean its stable. Intel Burn Test works good for short tests, but tend to heat your cpu up a bit. Prime95 is another but takes a good 8 - 10 hours, your cpu wont get quite as hot tho..

Here is a template of your bios.. I made some changes in red, the rest are from someone else's bios, so go through them and put in what you have them set to...

Code:

Code: 
CPU: Intel Core i7 950
BIOS: F12
Motherboard: Gigabyte EX58-UD5
RAM:  (3x 2GB) Geil  GU36GB2000C9TC | 2000MHz CL9-9-9-28

Advanced CPU Features:
[B]CPU Clock Ratio ................................ [23x][/B]
Intel(R) Turbo Boost Tech .................. [disabled]
CPU Cores Enabled ............................ [All]
CPU Multi Threading .......................... [Enabled]
CPU Enhanced Halt (C1E) ................... [Disabled]
C3/C6/C7 State Support .................... [Disabled]
CPU Thermal Monitor ......................... [Enabled]
CPU EIST Function ............................ [Disabled]
Virtualization Technology ................... [Disabled]
Bi-Directional PROCHOT ..................... [Enabled]

Uncore & QPI Features:
QPI Link Speed .............................. [7.2 GHz] (x36 clock Ratio)
Uncore Frequency .......................... [3200 MHz] ( x16 Uncore Clock Ratio)
Isonchronous Frequency .................. [Enabled]

Standard Clock Control:
Base Clock (BCLK) Control ................ [Enabled]
BCLK Frequency (MHz) ..................... [200]
[B]PCI Express Frequency (MHz) ........... [101][/B]
C.I.A.2 [Disabled]

Advanced Clock Control:
CPU Clock Drive .............................. [700 mV]
PCI Express Clock Drive ................... [700 mV]
CPU Clock Skew ............................. [0ps]
IOH Clock Skew ............................. [0ps]

Advanced DRAM Features:
Performance Enhance ...................... [Standard]
Extreme Memory Profile (X.M.P) ......... [Disabled]
System Memory Multiplier (SPD) ........ [x8]
DRAM Timing Selectable (SPD) .......... [Auto]

Channel A + B + C

Channel A Timing Settings:
##Channel A Standard Timing Control##
CAS Latency Time ...................... [ 9 ]
tRCD ....................................... [ 9 ]
tRP ......................................... [ 9 ]
tRAS ....................................... [28]
[B]Command Rate (CMD) ........... [ 2 ][/B]
Memory Frequency ............... [1333 MHz]

[B]Advanced Voltage Control:
[/B]
CPU
Load Line Calibration ................. [Enabled]
[B]CPU Vcore ............................... [1.325V][/B]
[B]QPI/VTT Voltage ..................... [1.35][/B]
CPU PLL .................................. [1.88V]

MCH/ICH
[B]PCIE 1.500v ........................... [1.50][/B]
[B]QPI PLL 1.100v ....................... [1.20][/B]
IOH Core 1.100v ..................... [1.24V]
ICH I/O 1.500v ....................... [Auto]
ICH Core 1.1v ........................ [Auto]

DRAM
[B]DRAM Voltage .......................  [1.660v] [/B]
All other settings [AUTO]
Click to expand...
Nice post very helpfull! Also helped me with my first overclock!!
biggrin.gif
 
M

· Registered
Joined
·
1,379 Posts
#8 ·
Quote:
Originally Posted by i-bet;12982290
my new validation:
http://valid.canardpc.com/show_oc.php?id=1747417

cpu clock ratio: 21x
blck frequency: 191
system memory multiplier: 10
memory latency: 9-9-9-24
memory speed: 1910 mhz

cpu vcore: 1.30v
qpi/vtt voltage: 1.495v
ioh core: Auto
dram voltage: 1.660v

this work stable... In games... And in test...
Click to expand...
vtt is to high!
 
10acjed

· Premium Member
Joined
·
6,800 Posts
#10 ·
Quote:
Originally Posted by i-bet;12982290
My new validation:
http://valid.canardpc.com/show_oc.php?id=1747417

CPU Clock Ratio: 21X
BLCK Frequency: 191
System Memory Multiplier: 10
Memory latency: 9-9-9-24
Memory speed: 1910 Mhz

CPU Vcore: 1.30V
QPI/Vtt Voltage: 1.495V
IOH core: Auto
Dram Voltage: 1.660V

This work stable... in games... and in test...
Click to expand...
I didnt mean 200 x 23 in that last post, it was supposed to be 166 x 23, then work your way up..

Set VTT to 1.35v or lower, intel "Absolute Maximum" is 1.35v.... Running it higher may cause damage..

And a 10 - 20 minute test isnt always stable... I suggest running Intel Burn Test for 20 passes at maximum. And run an overnight Prime95 blend test...
 
F

· Premium Member
Joined
·
10,503 Posts
#11 ·
1.35V VTT isn't going to run the memory at 2000Mhz, to play it safe you will probably have to run it ~1600Mhz with a lower memory divider but you should be able to run the timings tighter than rated at that speed.
There are guys who do run the VTT at 1.5V 24/7, but really depends if you want to make sure the chip lasts. You won't see the difference between 1600 & 2000Mhz outside of benchmarks, & you can still run the memory at 2000Mhz for short periods if you do want to run some benchies.
 
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