You are not registered yet. Please click here to register!
Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT - i4memory.com - different look at memory
Tags Register Blogs FAQ Members List Calendar Mark Forums Read

Notices

Reply
 
Thread Tools
Old 20-09-2007, 03:36 AM   #1
passionne
Junior Member
passionne's PC Specs
 
Join Date: Sep 20 2007
Location: France
Posts: 20
Angry Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

Hello,

I need help since I don't manage to have a 100 % stable system.

With the 1101 bios, I did the following tests :

- max fRAM found : 960 Mhz
- 3DMark05 CPU tests stable at 975 Mhz 4-4-4-8, whatever the divider, VRAM=2.14 V, NBstrap=333.
- Orthos RAM priortiy 10 stable at 960 Mhz (I did not test higher) 4-4-4-8, VRAM=2.18 V, NBstrap=333. I stopped Orthos after 1 h 16 min.

- max FSB found : 534 Mhz
- 3DMark05 CPU tests stable at 475x9/8=534 Mhz (CPU multiplier=8). 534 Mhz confirmed by Sisoft Sandra. VNB= 1.33 V. Divider 1:1.

- max fCPU :
- Orthos CPU & RAM priority 10 stable at 4166=9x463 Mhz, divider 1:1. VCPU=1.5 V, VFSB=1.4 V, VNB=1.35 V, VRAM=2.12 V, VPLL=1.54 V, every other voltage on auto. I stopped Orthos after 7 h 37 min.

I believed that 4166 was my 100 % stable frequency but I encountered crashes with games. The graphic card was not overclocked.

So I decreased the frequency to 4158 Mhz=462x9 and Orthos CPU & RAM crashed after 3 h 28 s !

Consequently, today, I was really fed up with my PC and at 4275 Mhz=475x9, I tested Orthos CPU & RAM with the following voltages : VFSB=1.52 V, VNB=1.59 V, VRAM=2.18 V, VSB=1.15 V, VPLL=1.64 V and crash after 12 min.

I am fed up with this motherboard. Would you have an idea why I don't manage to be stable ?

Thanks.
passionne is offline   Reply With Quote
Old 20-09-2007, 03:45 AM   #2
eva2000
Administrator
eva2000's PC Specs
 
Join Date: Jul 22 2004
Location: Brisbane, Australia
Posts: 23,024
twitter.com/i4memorycom Facebook Page livestream.com/i4memorycom
Blog Entries: 42
Re: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

hey welcome passionne

what's your bios settings used http://i4memory.com/showthread.php?t=4314 ?

might want to read http://i4memory.com/announcement.php?f=54&a=16 as well as http://i4memory.com/showthread.php?t=4532

For 4x1GB you might need higher NB and vdimm voltage

Try with 2x1GB first
eva2000 is offline   Reply With Quote
Old 20-09-2007, 03:58 AM   #3
passionne
Junior Member
passionne's PC Specs
 
Join Date: Sep 20 2007
Location: France
Posts: 20
Re: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

By eva2000 View Post
hey welcome passionne

what's your bios settings used http://i4memory.com/showthread.php?t=4314 ?

might want to read http://i4memory.com/announcement.php?f=54&a=16 as well as http://i4memory.com/showthread.php?t=4532

For 4x1GB you might need higher NB and vdimm voltage

Try with 2x1GB first
Extreme Tweaker
AI Overlocking: Manual
CPU Ratio Control: Manual
--- Ratio CMOS Setting: 9
FSB Strap to North Bridge: 333
FSB Frequency: 333
PCIE Frequency: 100
DRAM Frequency: DDR2-800
DRAM Command Rate: 2T
DRAM Timing Control: Manual
---CAS# Latency: 4
---RAS# to CAS# Delay: 4
---RAS# Precharge: 4
---RAS# Active Time: 8
---RAS# to RAS# Delay: Auto
---Row Refesh Cycle Time: Auto
---Write Recovery Time: Auto
---Write to Read Delay: Auto
---Read to Precharge Time: Auto
DRAM Static Read Control: AUTO

Tramsaction Booster: AUTO
--- Boost Level:

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled

CPU Voltage: 1.5 V
CPU Voltage Reference: AUTO
Loadline Calibratiom: Enabled
FSB Termination Voltage: 1.4
North Bridge Voltage: 1.35
North Bridge Reference: AUTO
DRAM Voltage: 2.12 v
-DDRII Channel A Ref Voltage: AUTO
-DDRII Channel B Ref Voltage: AUTO
-DDRII Controller Ref Voltage: AUTO
South Bridge Voltage: AUTO
PLL Voltage: 1.54 V
NB LED Selection: NB Volt
SB LED Selection: PLL Volt
Frequency LED: Turn off
Voltiminder LED: Turn off

CPU Ratio Control: Manual
-- Ratio CMOS Setting:
C1E Support: Disabled
Max CPUID Value Limit: Disabled
Vanderpool Technology: Enabled
CPU TM Function: Disabled
Execute Disable Bit: Disabled
PECI: Enabled

USB Configuration
USB Functions: Enabled
Legacy USB Support: Disabled (need to enable it to detect USB flash drives)

I will try with 2 sticks only and higher voltages on NB and RAM. What max safe voltages do you recommend for NB and RAM ? NB is watercooled (water at 20C) and RAM is cooled by 2 80 mm fans.

I keep you informed.
passionne is offline   Reply With Quote
Old 20-09-2007, 04:06 AM   #4
eva2000
Administrator
eva2000's PC Specs
 
Join Date: Jul 22 2004
Location: Brisbane, Australia
Posts: 23,024
twitter.com/i4memorycom Facebook Page livestream.com/i4memorycom
Blog Entries: 42
Re: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

try raising North Bridge Voltage to 1.55v to 1.65v and DRAM voltage to 2.2-2.30v the higher voltages particularly for 4x1GB.. you can probably drop FSB termination voltage to 1.3-1.35v

24/7 i'd recommend NB 1.55-1.6v and vdimm under 2.25v vdimm
eva2000 is offline   Reply With Quote
Old 20-09-2007, 08:10 PM   #5
passionne
Junior Member
passionne's PC Specs
 
Join Date: Sep 20 2007
Location: France
Posts: 20
Re: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

By eva2000 View Post
try raising North Bridge Voltage to 1.55v to 1.65v and DRAM voltage to 2.2-2.30v the higher voltages particularly for 4x1GB.. you can probably drop FSB termination voltage to 1.3-1.35v

24/7 i'd recommend NB 1.55-1.6v and vdimm under 2.25v vdimm
I ran Orthos CPU & RAM priority 10 this night by following your advice and Orthos crashed after 9 h 13 min.

Here are the parameters :

CPU Voltage: 1.5 V
CPU Voltage Reference: AUTO
Loadline Calibratiom: Enabled
FSB Termination Voltage: 1.38
North Bridge Voltage: 1.55
North Bridge Reference: AUTO
DRAM Voltage: 2.2 v
-DDRII Channel A Ref Voltage: AUTO
-DDRII Channel B Ref Voltage: AUTO
-DDRII Controller Ref Voltage: AUTO
South Bridge Voltage: AUTO
PLL Voltage: 1.54 V

I will test tonight with VFSB=1.34 V and VPLL=1.5 V. Indeed, accordinf to your link, http://i4memory.com/showthread.php?t=4532, you adjusted VPLL at 1.5 V. Today, I will play games too in order to see if I still encounter crashes.

I keep you informed.
passionne is offline   Reply With Quote
Old 21-09-2007, 02:18 AM   #6
gaidin
Senior Member
gaidin's PC Specs
 
Join Date: Jan 17 2006
Location: Melbourne
Posts: 221
Re: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

sorry, slightly OT

Blue or white slots for memory on the Blitz eva? I read your summary in a thread somewhere but I cant for the life of me find it
gaidin is offline   Reply With Quote
Old 21-09-2007, 02:30 AM   #7
dinos22
Senior Member
dinos22's PC Specs
 
Join Date: Mar 26 2005
Location: Sydney
Posts: 9,825
Re: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

is it stable at stock speeds
dinos22 is offline   Reply With Quote
Old 21-09-2007, 04:12 AM   #8
passionne
Junior Member
passionne's PC Specs
 
Join Date: Sep 20 2007
Location: France
Posts: 20
Re: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT

Yes, it is stable at stock speeds.
passionne is offline   Reply With Quote
Reply

Bookmarks

Tags
attain, blitz, e6850, formula, impossible, mach, overclock, stable


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools


Similar Threads for: Impossible to attain a stable overclock : E6850+Blitz Formula+Mach II GT
Thread Thread Starter Forum Replies Last Post
Asus R.O.G. Blitz Formula SE (DDR2) / Blitz Extreme (DDR3) - 2 phase DDR preview eva2000 Asus Intel motherboards / CPU 183 11-12-2009 03:12 AM
E6850 L720A489 @4438Mhz Air + Asus Blitz Formula 1101 eva2000 Asus Intel motherboards / CPU 33 30-11-2007 08:48 AM
A few problems when overclocking E6850 with Blitz Formula edwin2005hk Asus Intel motherboards / CPU 5 18-10-2007 11:05 PM
E6850 L723A347 + Asus Blitz Formula 1101 bios eva2000 Asus Intel motherboards / CPU 32 24-08-2007 06:05 PM
Intel Core 2 E6750 + Asus Blitz Formula SE Adventure eva2000 Asus Intel motherboards / CPU 15 27-07-2007 05:08 PM


All times are GMT +11. The time now is 04:06 AM.

no new posts