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help pushing ep45 qx9650 to 4.2 daily

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boorishid

boorishid

Member
​
Joined
Jan 7, 2008
Alright so i can get 4ghz on an ep45 at a vcore of 1.408 and mch is 1.26. I set my latch to 400mz at 2.00 so my ram runs at 1000mhz 5-5-5-15, ram is at stock setting stock volts.

To get to 4ghz i use 500x8. My PLL, TERMs, and REF voltages are all auto. Right now im trying 4.165ghz 490x8.5 So im assuming my mch and my ram should all be fine. I bumped my vcore to 1.440 and prime95 fails the second core after 16 minutes the other 3 keep chugging away. Tried uping my pll to 1.56 did nothing to help the situation any suggestions? also how is running a 45 nm at these hi of voltages? my peak temps are never above 70c in a room that is 80 degrees ambient
 
Instead of running such a high FSB, drop it down to 445MHz x 9 = 4.0GHz, and change the MCH Latch to 333 w/ a 2.00B multiplier = 890MHz DRAM frequency w/ tighter NB timings (w/ Static tRead Value / tRD / Performance Level in CPU-Z on AUTO). Or keep the Latch at 400 and 2.00D, but try lowering numerically the Static tRead Value by 1.
 
Last edited:
well my ram sucks it 2v 5-5-5-15 1000 wont hit lower timings or nething above 1020mhz lol so i just try to keep it stocked. What is the theory behind the lower fsb higher multiplier using less voltage? I was under the assumption if im running a hi fsb id be loading the mch down a lil more than the vcore.

Plus like i said only one core fails i know something with the ref voltages can help that but im not quite sure what ref voltages are or how to utlize them right on this mobo becuase the menu options are so diffrent from my asus boards
 
Your RAM should easily hit >1020MHz, but with 8GB and a FSB : DRAM ratio of 1:1 at a FSB of 500MHz+, you'll need to compensate heavily by increasing the vNB / vMCH and / or increasing DRAM voltage combined w/ looser timings. There's just too much strain on the NB w/ that much RAM installed, running at DDR2-1000MHz+, and w/ the FSB so high. You'll have a much better chance of achieving a higher clock by lowering the FSB, and in turn lowering the DRAM frequency. You might even want to try 400MHz x 10 and work your way up from there. Change the MCH Latch to 333 w/ a 2.40B multiplier for an effective 960MHz DRAM frequency.
 
well im currently at 800mhz ram 5-5-5-15 10.5x400=4.2 anf my chip wont even stabalize at 1.47 volts
 
Your chip shouldn't need anywhere near 1.47V to reach 4.2GHz (1.4V maybe). Post your latest Prime stable settings using this template for the EP45, and also a CPU-Z screenshot of the CPU tab while running Prime...

Code: 
[b][u]GIGABYTE GA-EP45-UD3R[/u][/b] 
[u][b][u]MB Intelligent Tweaker(M.I.T.)[/u][/b] 
Robust Graphics Booster ...............:  
CPU Clock Ratio ..........................:  
Fine CPU Clock Ratio.....................:. 
CPU Frequency ...........................: Mhz 
[b][u]Clock Chip Control [/u][/b] 
[b][u]Standard Clock Control[/u][/b] 
CPU Host Clock Control..................: [Enabled] [Disabled] 
CPU Host Frequency (Mhz) ............:Mhz 
PCI Express Frequency (Mhz) .........:Mhz 
C.I.A. 2......................................: Disabled 
[b][u]Advanced Clock Control [Press Enter][/u][/b] 
CPU Clock Drive...........................: mv 
PCI Express Clock Drive.................: mv 
CPU Clock Skew (ps)....................: ps 
MCH Clock Skew (ps)...................: ps 
[b][u]DRAM Performance Control[/u][/b][u][/u] 
Performance Enhance...................: [Turbo] 
Extreme Memory Profile (X.M.P.).....:  
(G)MCH Frequency Latch...............: [Auto] 
System Memory Multiplier ..............: 
Memory Frequency (Mhz) ..............: Mhz 
DRAM Timing Selectable ................: [Manual] 
[b]Standard Timing Control[/b] 
CAS Latency Time..............................:  
tRCD .........................................:  
tRP...........................................:   
tRAS..........................................:   
[b]Advanced Timing Control [Press Enter][/b] 
tRRD...........................................: 
tWTR..........................................: 
tWR............................................: 
tRFC...........................................: 
tRTP...........................................: 
Command Rate (CMD) ....................: 

[b]Channel A[/b] 

[b]Channel A Timings Settings [Press Enter][/b]  
Static tRead Value.........................:Auto 
tRD Phase0 Adjustmen.......................: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  ps 
Dimm2 Clock Skew Control...................:Auto  ps 
DDR Write Training ...........................: Enabled 
[b]Channel A Driving Settings [Press Enter][/b]  
Driving Strength Profile...................:[AUTO],[667Mhz],[800Mhz],[1066Mhz],[OC-1200],[OC-1333] 

Data Driving Pull-Up Level.................:Auto  
Cmd Driving Pull-Up Level..................:Auto  
Ctrl Driving Pull-Up Level.................:Auto  
Clk Driving Pull-Up Level..................:Auto  

Data Driving Pull-Down Level...............:Auto  
Cmd Driving Pull-Down Level................:Auto  
Ctrl Driving Pull-Down Level...............:Auto  
Clk Driving Pull-Down Level................:Auto  
[b]Channel B[/b] 

[b]Channel B Timings Settings [Press Enter][/b]  
Static tRead Value.........................:Auto 
tRD Phase0 Adjustmen.......................: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  ps 
Dimm2 Clock Skew Control...................:Auto  ps 
DDR Write Training .........................: Enabled 
[b]Channel B Driving Settings [Press Enter][/b]  
Driving Strength Profile...................:[AUTO],[667Mhz],[800Mhz],[1066Mhz],[OC-1200],[OC-1333] 

Data Driving Pull-Up Level.................:Auto  
Cmd Driving Pull-Up Level..................:Auto  
Ctrl Driving Pull-Up Level.................:Auto  
Clk Driving Pull-Up Level..................:Auto  

Data Driving Pull-Down Level...............:Auto  
Cmd Driving Pull-Down Level................:Auto  
Ctrl Driving Pull-Down Level...............:Auto  
Clk Driving Pull-Down Level................:Auto  


[b]{U]Motherboard Voltage Control[/b]{/U] 
Voltage Type.………... Normal  
[b]CPU[/b] 
Load Line Calibration......................: [Enabled] [Disabled] 
CPU Vcore..................................:v 
CPU Termination…..... 1.200V*..............:v 
CPU PLL...............1.500V*..............: v 
CPU Reference.........0.755V*..............: v 
[b]MCH/ICH[/b] 
MCH Core..............1.100V...............: v 
MCH Reference.........0.800V...............: v 
MCH/DRAM Ref..........0.900V...............: v 
ICH I/O...............1.550V...............: v 
ICH Core............……1.100V...............: v 
[B]DRAM[/B] 
DRAM Voltage..........1.800V...............: v 
DRAM Termination......0.900V...............: v 
Channel A Reference...0.900V...............: v 
Channel B Reference...0.900V...............: v 
[b]{U]Advanced Settings[b]{U] 
Limit CPUID Max. to 3......................: [Disabled] 
No-Execute Memory Protect..................: [Disabled] 
CPU Enhanced Halt (C1E)....................: [Disabled] 
C2/C2E State Support.......................: [Disabled] 
x C4/C4E State Support.....................: [Disabled] 
CPU Thermal Monitor 2(TM2) ................: [Enabled] 
CPU EIST Function..........................: [Disabled] 
Virtualization Technology..................: [Disabled]
 
Ok well ill post a few stable settings at diffrent bus speeds if ya want my ghz stable is a 500mhz bus. Which id acually rather not use anyways becuase i want to push the frequency on my ram as hi as i can.
 
is there a way to export a txt file of all the bios settings? i tried to save the bios settings to a floppy and hex it but that didnt do much..
 
@ 3.6 prime linpack stable
36.jpg
Code: 
GIGABYTE GA-EP45-UD3R 
[u]MB Intelligent Tweaker(M.I.T.) 
Robust Graphics Booster ...............:  Auto
CPU Clock Ratio ..........................: 9 
Fine CPU Clock Ratio.....................:. 0
CPU Frequency ...........................: 3600Mhz 
Clock Chip Control  
Standard Clock Control 
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 400mhz??
PCI Express Frequency (Mhz) .........: Auto 
C.I.A. 2......................................: Disabled 
Advanced Clock Control [Press Enter] 
CPU Clock Drive...........................: mv 
PCI Express Clock Drive.................: mv 
CPU Clock Skew (ps)....................: ps 
MCH Clock Skew (ps)...................: ps 
DRAM Performance Control 
Performance Enhance...................: [Standard] 
Extreme Memory Profile (X.M.P.).....:  auto
(G)MCH Frequency Latch...............: 400mhz 
System Memory Multiplier ..............: Auto 
Memory Frequency (Mhz) ..............: 960 Mhz 
DRAM Timing Selectable ................: [Manual] 
Standard Timing Control 
CAS Latency Time..............................: 5  
tRCD .........................................: 5
tRP...........................................: 5  
tRAS..........................................: 15  
Advanced Timing Control [Press Enter] 
tRRD...........................................: Auto
tWTR..........................................: Auto
tWR............................................: Auto
tRFC...........................................: Auto
tRTP...........................................: Auto
Command Rate (CMD) ....................: 

Channel A 

Channel A Timings Settings [Press Enter]  
Static tRead Value.........................:Auto 
tRD Phase0 Adjustmen.......................: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  ps 
Dimm2 Clock Skew Control...................:Auto  ps 
DDR Write Training ...........................: Enabled 
Channel A Driving Settings [Press Enter]  
Driving Strength Profile...................:[AUTO],[667Mhz],[800Mhz],[1066Mhz],[OC-1200],[OC-1333] 

Data Driving Pull-Up Level.................:Auto  
Cmd Driving Pull-Up Level..................:Auto  
Ctrl Driving Pull-Up Level.................:Auto  
Clk Driving Pull-Up Level..................:Auto  

Data Driving Pull-Down Level...............:Auto  
Cmd Driving Pull-Down Level................:Auto  
Ctrl Driving Pull-Down Level...............:Auto  
Clk Driving Pull-Down Level................:Auto  
Channel B 

Channel B Timings Settings [Press Enter]  
Static tRead Value.........................:Auto 
tRD Phase0 Adjustmen.......................: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  ps 
Dimm2 Clock Skew Control...................:Auto  ps 
DDR Write Training .........................: Enabled 
Channel B Driving Settings [Press Enter]  
Driving Strength Profile...................:[AUTO],[667Mhz],[800Mhz],[1066Mhz],[OC-1200],[OC-1333] 

Data Driving Pull-Up Level.................:Auto  
Cmd Driving Pull-Up Level..................:Auto  
Ctrl Driving Pull-Up Level.................:Auto  
Clk Driving Pull-Up Level..................:Auto  

Data Driving Pull-Down Level...............:Auto  
Cmd Driving Pull-Down Level................:Auto  
Ctrl Driving Pull-Down Level...............:Auto  
Clk Driving Pull-Down Level................:Auto  


{U]Motherboard Voltage Control{/U] 
Voltage Type.………... Normal  
CPU 
Load Line Calibration......................: [Enabled] 
CPU Vcore..................................: 1.27 
CPU Termination…..... 1.200V*..............: Auto 
CPU PLL...............1.500V*..............: Auto
CPU Reference.........0.755V*..............: Auto 
MCH/ICH 
MCH Core..............1.100V...............: 1.1 
MCH Reference.........0.800V...............: Auto 
MCH/DRAM Ref..........0.900V...............: Auto 
ICH I/O...............1.550V...............: Auto
ICH Core............……1.100V...............: Auto
DRAM 
DRAM Voltage..........1.800V...............: 2.00 
DRAM Termination......0.900V...............: Auto
Channel A Reference...0.900V...............: Auto
Channel B Reference...0.900V...............: Auto
[b]{U]Advanced Settings[b]{U] 
Limit CPUID Max. to 3......................: [Disabled] 
No-Execute Memory Protect..................: [Disabled] 
CPU Enhanced Halt (C1E)....................: [Disabled] 
C2/C2E State Support.......................: [Disabled] 
x C4/C4E State Support.....................: [Disabled] 
CPU Thermal Monitor 2(TM2) ................: [Enabled] 
CPU EIST Function..........................: [Disabled] 
Virtualization Technology..................: [Disabled]

@4GHZ prime linpack stable
40.jpg
Code: 
GIGABYTE GA-EP45-UD3R 
[u]MB Intelligent Tweaker(M.I.T.) 
Robust Graphics Booster ...............:  Auto
CPU Clock Ratio ..........................:  8
Fine CPU Clock Ratio.....................:. 0
CPU Frequency ...........................: 4000Mhz 
Clock Chip Control  
Standard Clock Control 
CPU Host Clock Control..................: [Enabled] 
CPU Host Frequency (Mhz) ............:500Mhz 
PCI Express Frequency (Mhz) .........:Auto 
C.I.A. 2......................................: Disabled 
Advanced Clock Control [Press Enter] 
CPU Clock Drive...........................: mv 
PCI Express Clock Drive.................: mv 
CPU Clock Skew (ps)....................: ps 
MCH Clock Skew (ps)...................: ps 
DRAM Performance Control 
Performance Enhance...................: [Standard] 
Extreme Memory Profile (X.M.P.).....:  Auto
(G)MCH Frequency Latch...............: [Auto] 
System Memory Multiplier ..............:  2.00d
Memory Frequency (Mhz) ..............: 1000Mhz 
DRAM Timing Selectable ................: [Manual] 
Standard Timing Control 
CAS Latency Time..............................:  5
tRCD .........................................:  5
tRP...........................................:  5
tRAS..........................................:  15
Advanced Timing Control [Press Enter] 
tRRD...........................................: Auto 
tWTR..........................................: Auto
tWR............................................: Auto
tRFC...........................................: Auto
tRTP...........................................: Auto
Command Rate (CMD) ....................: 

Channel A 

Channel A Timings Settings [Press Enter]  
Static tRead Value.........................:Auto 
tRD Phase0 Adjustmen.......................: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  ps 
Dimm2 Clock Skew Control...................:Auto  ps 
DDR Write Training ...........................: Enabled 
Channel A Driving Settings [Press Enter]  
Driving Strength Profile...................:[AUTO],[667Mhz],[800Mhz],[1066Mhz],[OC-1200],[OC-1333] 

Data Driving Pull-Up Level.................:Auto  
Cmd Driving Pull-Up Level..................:Auto  
Ctrl Driving Pull-Up Level.................:Auto  
Clk Driving Pull-Up Level..................:Auto  

Data Driving Pull-Down Level...............:Auto  
Cmd Driving Pull-Down Level................:Auto  
Ctrl Driving Pull-Down Level...............:Auto  
Clk Driving Pull-Down Level................:Auto  
Channel B 

Channel B Timings Settings [Press Enter]  
Static tRead Value.........................:Auto 
tRD Phase0 Adjustmen.......................: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  ps 
Dimm2 Clock Skew Control...................:Auto  ps 
DDR Write Training .........................: Enabled 
Channel B Driving Settings [Press Enter]  
Driving Strength Profile...................:[AUTO],[667Mhz],[800Mhz],[1066Mhz],[OC-1200],[OC-1333] 

Data Driving Pull-Up Level.................:Auto  
Cmd Driving Pull-Up Level..................:Auto  
Ctrl Driving Pull-Up Level.................:Auto  
Clk Driving Pull-Up Level..................:Auto  

Data Driving Pull-Down Level...............:Auto  
Cmd Driving Pull-Down Level................:Auto  
Ctrl Driving Pull-Down Level...............:Auto  
Clk Driving Pull-Down Level................:Auto  


{U]Motherboard Voltage Control{/U] 
Voltage Type.………... Normal  
CPU 
Load Line Calibration......................: [Enabled] 
CPU Vcore..................................: 1.425v 
CPU Termination…..... 1.200V*..............: Auto
CPU PLL...............1.500V*..............: Auto
CPU Reference.........0.755V*..............: Auto
MCH/ICH 
MCH Core..............1.100V...............: 1.26 
MCH Reference.........0.800V...............: Auto
MCH/DRAM Ref..........0.900V...............: Auto
ICH I/O...............1.550V...............: Auto
ICH Core............……1.100V...............: Auto
DRAM 
DRAM Voltage..........1.800V...............: 2.00
DRAM Termination......0.900V...............: Auto
Channel A Reference...0.900V...............: Auto
Channel B Reference...0.900V...............: Auto
[b]{U]Advanced Settings[b]{U] 
Limit CPUID Max. to 3......................: [Disabled] 
No-Execute Memory Protect..................: [Disabled] 
CPU Enhanced Halt (C1E)....................: [Disabled] 
C2/C2E State Support.......................: [Disabled] 
x C4/C4E State Support.....................: [Disabled] 
CPU Thermal Monitor 2(TM2) ................: [Enabled] 
CPU EIST Function..........................: [Disabled] 
Virtualization Technology..................: [Disabled]
 
Your settings look OK, other than primarily the MCH Core voltage. Try my settings from post #2, but lower the Vcore to about 1.3 - 1.35 at 4.0GHz to start. Increase the MCH Core to 1.35V, CPU Ref. voltage to 0.7850V, CPU Termination to 1.3V, and Command Rate to 2T. This is w/ the MCH Latch at 400, and the System Memory Multiplier at 2.00D.
 
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