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  #1  
Old 11-24-2008, 05:04 PM
inanitas inanitas is offline
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Question Gigabyte EP45 and TWIN2X4096-8500C5DF

Hello

I have similar problem with my RAM: TWIN2X4096-8500C5DF and ATI Radeon. When I play COD4 or other 3D games they crush. Could you advise me what settings I should chose in BIOS to get it stabilized? I've got Gigabyte Motherboard GA-EP45-DS3R, ATI Radeon HD4850. I am listing BIOS settings below - so far everything is in Auto Mode, RAM voltage 1.8 (also Auto)
(G)MCH Frequency Latch

System Memory Multiplier (SPD)

Memory Frequency (Mhz)

DRAM Timing Selectable (SPD)

CAS Latency Time
Options are: Auto (default), 3~7.

tRCD
Options are: Auto (default), 1~15.

tRP
Options are: Auto (default), 1~15.

tRAS
Options are: Auto (default), 1~63.

tRRD
Options are: Auto (default), 1~15.

tWTR
Options are: Auto (default), 1~31.

tWR
Options are: Auto (default), 1~31.

tRFC
Options are: Auto (default), 1~255.

tRTP
Options are: Auto (default), 1~15.

Command Rate(CMD)
Options are: Auto (default), 1~3.

DRAM Voltage
The default is Auto.

DRAM Termination
The default is Auto.

Channel A Reference
The default is Auto.

Channel B Reference
The default is Auto.

Thank you for your support
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  #2  
Old 11-24-2008, 09:03 PM
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The tested settings can be found int he link in my signature just load setup defaults and set the tested settings and Voltage manually and any setting not listed should eb set to BIOS default or Auto.
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  #3  
Old 11-25-2008, 05:43 AM
inanitas inanitas is offline
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I found it, thanks. There are still a few questions which come to my mind.
1. Why I spent money for 1066MHz memory and now need to set my clock back to 800MHz?
2. What is my RAM/computer performance impact when I overclock these modules back to 800MHz?
3. How I can distinguish that I have Version 1.x or version 2.x?
4. Can I overclock these modules exciding 1066Mhz and also get stable performance?

Thanks for your help
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Old 11-25-2008, 02:09 PM
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Quote:
Originally Posted by inanitas View Post
I found it, thanks. There are still a few questions which come to my mind.
1. Why I spent money for 1066MHz memory and now need to set my clock back to 800MHz?
2. What is my RAM/computer performance impact when I overclock these modules back to 800MHz?
3. How I can distinguish that I have Version 1.x or version 2.x?
4. Can I overclock these modules exciding 1066Mhz and also get stable performance?

Thanks for your help
Keep in mind that you entered a thread for an AMD system so the settings given for the person that started the thread do not apply to your system at all.

You should be able to enter your BIOS and set the memory speed to run at 1066 on the MOBO you have. You will need to OC your CPU FSB to do this.
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Old 11-26-2008, 05:21 AM
inanitas inanitas is offline
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The thread was related to 1066Mhz memory speed and ATI Catalyst Drivers, which could work unstable under 3D games. Based on information form RAM GUY I need to overclock back my memory to 800Mhz. I did it yesterday and tested those setting under two 3Dgames, both worked stable and I did not see any problems with ATI Catalyst Driver. Previously I had similar problems like jbaines72. But still I have concern related to almost 300Mhz (memory speed) loss.
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Old 11-26-2008, 09:48 AM
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There should be an 8.11 driver out although I am not certain if it is still a beta or not. Stability is good of course but the choice of video driver should not have any effect at all on what speed you can run your memory. That is dependent upon the hardware, specifically the memory controller and the memory. Current AMD CPUs, and especially the quad cores are VERY unstable at 1066 whereas Intel P45s are very stable at 1066 assuming the other components are up to the OC. That is why I pointed out that the given settings would not apply to your hardware, regardless of what video driver you use.
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  #7  
Old 11-26-2008, 11:36 AM
inanitas inanitas is offline
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Quote:
Originally Posted by jbaines72 View Post
I was curious as to why my video card drivers crash when I set my system memory to DDR2 1066. If I leave my memory settings in the BIOS set to auto (which makes them run at SPD settings of DDR2 800), everything runs fine. This only seems to happen when I play Call of Duty 4. If I set my memory to DDR2 1066, my computer boots, is stable, and everything works (such as web browsing, office software, etc.), but if I try and play the game, the catalyst drivers crash every time after about 5 minutes or so. Again, this is only at DDR2 1066, not DDR2 800, and it only seems to be 3D games.

Thanks in advance for any help.

Jeff Baines
Thank you for your answer. As far as drivers are concerned, I have the newest ones, BIOS also. This thread is very interesting for me since I saw similar problems with my computer (quoted above). I was searching for solution and 800Mhz setting for RAM solved my stability issues so far. Previously I experienced game and catalyst drivers crash during play. Problem occurred regardless of video driver version (as you mentioned). From my point of view it looks that there could be some kind of conflict between Radeon 4850 and Corsair memory. Now I would like to find root cause of that situation. Maybe I should simultaneously OC my graphic card; CPU and memory to the same frequency - do not know the answer so far, probably also do not understand all interactions between hardware I got.
I would expect that my RAM should operate on rated settings and not causing stability problems. Until now it works stable at 800Mhz. I am wondering if you could suggest me some solution which I could check/test.
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  #8  
Old 11-26-2008, 11:49 AM
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I split your thread off from the other thread. There is no conflict with ATI cards and our memory and, the settings and advice in the other thread do not in any way apply to an Intel based MOBO.

So far, I have not seen you list any of your BIOS settings. Can you list ALL of your BIOS settings you have made for RAM, CPU, and voltages?
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  #9  
Old 11-30-2008, 03:43 PM
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Below you can find my motherboard options – attached pdf document:
My stable current settings are:

Robust Graphics Booster = Fast
CPU Clock Ratio = 9x
Fine CPU Clock Ratio = +0.5
CPU Frequency = 3.16Ghz (333x9.5)

******** Clock Chip Control ********
>>>>> Standard Clock Control
CPU Host Clock Control = [Disabled]
CPU Host Frequency (Mhz) = 333
PCI Express Frequency (Mhz) = [Auto]
C.I.A.2 = [Disabled]

>>>>> Advanced Clock Control
CPU Clock Drive = [800mV]
PCI Express Clock Drive = [900mV]
CPU Clock Skew = [0ps]
MCH Clock Skew = [0ps]

******** DRAM Performance Control ********
Performance Enhance = [Turbo]
Extreme Memory Profile (X.M.P.) = [Disabled]
(G)MCH Frequency Latch = [333 Mhz]
System Memory Multiplier (SPD) =[2.40B]
Memory Frequency (Mhz) = 1066 800
DRAM Timing Selectable (SPD) = [Manual]

>>>>> Standard Timing Control
CAS Latency Time = [5]
tRCD = [5]
tRP = [5]
Tras = [15]

******** Mother Board Voltage Control ********
>>> CPU
CPU Vcore = 1.100V [Auto]
CPU Termination = 1.200V [Auto]
CPU PLL = 1.500V [Auto]
CPU Reference = 0.7600V [Auto]

>>> MCH/ICH
MCH Core = 1.100V [Auto]
MCH Reference = 0.760V [Auto]
MCH/DRAM Reference = 0.900V [Auto]
ICH I/O = 1.500 [Auto]

>>> DRAM
DRAM Voltage = 1.800V [Auto]
DRAM Termination = 0.900V [Auto]
Channel A Reference = 0.900V [Auto]
Channel B Reference = 0.900V [Auto]


My previous unstable settings were: everything was set to Auto or Default, the system was stable during typical office operation (Excel Word Internet Explorer etc.) but unstable during 3D games. Each game crushed after about 5 minutes with warning that “display driver crushed….”


Robust Graphics Booster = Auto
CPU Clock Ratio = 9x
Fine CPU Clock Ratio = +0.5
CPU Frequency = 3.16Ghz (333x9.)

******** Clock Chip Control ********
>>>>> Standard Clock Control
CPU Host Clock Control = [Disabled]
CPU Host Frequency (Mhz) = 333
PCI Express Frequency (Mhz) = [Auto]
C.I.A.2 = [Disabled]

>>>>> Advanced Clock Control
CPU Clock Drive = [800mV]
PCI Express Clock Drive = [900mV]
CPU Clock Skew = [0ps]
MCH Clock Skew = [0ps]

******** DRAM Performance Control ********
Performance Enhance = [Standard]
Extreme Memory Profile (X.M.P.) = [Disabled]
(G)MCH Frequency Latch = [Auto]
System Memory Multiplier (SPD) =[Auto]
Memory Frequency (Mhz) = 1066 1066
DRAM Timing Selectable (SPD) = [Auto]

>>>>> Standard Timing Control
CAS Latency Time = 5 [Auto]
tRCD = 5 [Auto]
tRP = 5 [Auto]
Tras = 15 [Auto]

******** Mother Board Voltage Control ********
>>> CPU
CPU Vcore = 1.100V [Auto]
CPU Termination = 1.200V [Auto]
CPU PLL = 1.500V [Auto]
CPU Reference = 0.7600V [Auto]


>>> MCH/ICH
MCH Core = 1.100V [Auto]
MCH Reference = 0.760V [Auto]
MCH/DRAM Reference = 0.900V [Auto]
ICH I/O = 1.500 [Auto]

>>> DRAM
DRAM Voltage = 1.800V [Auto]
DRAM Termination = 0.900V [Auto]
Channel A Reference = 0.900V [Auto]
Channel B Reference = 0.900V [Auto]


I hope you can advise me which option I should change to get stable operation at rated memory speed.
Attached Files
File Type: pdf motherboard_manual_ga-ep45-ds3(r)_e_cutsheet.pdf (111.7 KB, 3592 views)
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  #10  
Old 11-30-2008, 07:57 PM
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Your DRAM voltage is set for 1.8 volts. Set it to 2.1 ... or whatever your memory calls for. Set everything else, memorywise, back to auto.

Last edited by OldGeezer; 11-30-2008 at 08:01 PM. Reason: .
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  #11  
Old 12-01-2008, 06:34 AM
inanitas inanitas is offline
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Thanks for advice, but I have already checked it. When I set my memory frequency to 1066Mhz (Auto mode) and my Ram voltage 2.1V it is unstable also. When my Ram frequency is set to 800 Mhz then no matter which voltage I set between 1.8 and 2.1 - the system is stable. So probably issue lies elsewhere.
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Old 12-01-2008, 01:53 PM
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Just for testing, drop your CPU multiplier to 7 or 8 and see if you can then run the memory at 1066.
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  #13  
Old 12-01-2008, 04:54 PM
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I've done it. CPU dropped to 7x and memory increased to 1066 Mhz. Same problem as previous - stable during office operation, unstabe in 3D games.
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  #14  
Old 12-01-2008, 07:40 PM
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Please follow these instructions exactly.
Download Memtest86+ V2.01 from--->Here
and extract the ISO image. Burn the ISO image to an CD-ROM disk.
Download CPU-z from Here .
Shut the system down. Remove the second stick of DRAM and leave only the first one in slot 1. Restart the system and enter your BIOS. Load Setup Defaults. Save Setup Defaults. On the main BIOS screen press Ctrl + F1. You will see the screen flicker. Next select the MB Intelligent Tweaker option. On that screen you will see many additional settings that were not there before. Enter these values:

Code:
MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster: Auto
CPU Clock Ratio: 9.5
Fine CPU Clock Ratio: 0

Clock Chip Control

Standard Clock Control
CPU Host Clock Control: Disabled
CPU Host Frequency (Mhz): 333
PCI Express Frequency (Mhz): 100
C.I.A.2: Disabled

Advanced Clock Control

CPU Clock Drive: Auto
PCI Express Clock Drive: Auto

CPU Clock Skew (ps): Auto

MCH Clock Skew (ps): 50-150

DRAM Performance Control

Performance Enhance: Standard
Extreme Memory Profile (X.M.P.): Disabled
(G)MCH Frequency Latch: Auto
System Memory Multiplier: 2.4
Memory Frequency (Mhz): 800
Dram Timing Selectable: Manual

Standard Timing Control
DRAM Timing Selectable: Manual

CAS Latency Time: 5
tRCD: 5
tRP: 5
tRAS: 15

Advanced Timing Control

tRRD: 4
tWTR: 5
tWR: 5
tRFC: 62
tRTP: 5
Command Rate (CMD): 2

Driving Strength Profiles
Driving Strength: 1066

Channel A
Static tRead Value: Set to 8 (test from 7 - 10)
tRD Phase0 Adjustment: Auto
tRD Phase1 Adjustment: Auto
tRD Phase2 Adjustment: Auto
tRD Phase3 Adjustment: Auto
Trd2rd(Different Rank): Auto
Twr2wr(Different Rank): Auto
Twr2rd(Different Rank): Auto
Trd2wr(Same/Diff Rank): Auto
Dimm1 Clock Skew Control: Auto
Dimm2 Clock Skew Control: Auto

Channel B
Static tRead Value: Set to 8 (test from 7 - 10)
tRD Phase0 Adjustment: Auto
tRD Phase1 Adjustment: Auto
tRD Phase2 Adjustment : Auto
tRD Phase3 Adjustment: Auto
Trd2rd(Different Rank): Auto
Twr2wr(Different Rank): Auto
Twr2rd(Different Rank): Auto
Trd2wr(Same/Diff Rank): Auto
Dimm1 Clock Skew Control: Auto
Dimm2 Clock Skew Control: Auto


Motherboard Voltage Control
Voltage Type: Manual

CPU Vcore: Auto
CPU Termination: 1.2v
CPU PLL: 1.5v
CPU Reference: .9v
CPU Reference2: .76v

MCH/ICH
MCH/ICH: 1.24v
MCH Core: .76v
MCH Reference: .9v
MCH/DRAM Ref: 1.5v
ICH I/O: 1.55v
ICH Core: 1.1v

DRAM
DRAM Voltage: 2.1v 
DRAM Termination: 0.9v
Channel A Reference: 0.9v
Channel B Reference: 0.9v

Advanced Settings

Limit CPUID Max. to 3: Disabled
No-Execute Memory Protect: Enabled
CPU Enhanced Halt (C1E): Enabled
C2/C2E State Support: Disabled
x C4/C4E State Support: Disabled
CPU Thermal Monitor 2(TM2) : Enabled
CPU EIST Function: Disabled
Virtualization Technology: Enabled

Integrated Peripherals

Legacy USB Storage Detect: Enabled
Run Memtest for two full passes. Shut the system down. If the stick is stable, remove the first stick and insert it into the third slot and retest. If stable, Insert the second stick in the first slot and retest. When assured of stable DRAM, then enter Windows and Run CPU-z and post screenshots of CPU-z's CPU, Memory and SPD tabs.

Results?
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  #15  
Old 12-03-2008, 05:59 PM
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The results are comming. It takes time.
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