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Q9550 OC Problem

post #1 of 28
Thread Starter 
Hello,

PC Specs:
Gigabyte EP45-UD3P
Intel QuadCore 9550 C1 Ver.
Radeon HD4870X2 2GB
2x2GB Corsair Dominator TwinX CL5 Dual Channel 1066Mhz

I just overclocked my CPU for the first time to 3.4GHZ 8.5x400
I had everything on stock settings ( voltage )
CPU Voltage: 1.25
DRAM Voltage: 1.8

Then i tested my cpu with Prime95 ...
My 3rd core failed after 20 mins , but i kept the test at night for 7 hours and passed on the other cores ...

Do you consider this stable ? ( i bet no , but )
which voltage should i push alittle more ? there is way so many settings to edit ...

My Memory running @ 800 mhz ( 1:1 )

Thanks
post #2 of 28
Unfortunately it is not stable

I would up the CPU vcore a little, try around 1.28v~1.30v. Sometimes the CPU will have one core that is a little weaker than the others, that's why it failed and it will need just a little more voltage to stabilize everything. Also most 1066mhz kits are rated for 2.1v, make sure you are running it at the right settings (check CPU-Z SPD tab). If you suspect memory might be causing problems run memtest86+
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post #3 of 28
Up the vcore as already mentioned. CPU term is another voltage you should look at as well. Typically I used to run mine at the same voltage or higher than vcore.

Also if you could find a bios template for that board, I would but I'm on my phone ATM, and fill it in with your settings we could help fine tune settings for 3.6 to 3.8 fairly easy.
Edited by Valafar - 10/18/11 at 1:17am
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post #4 of 28
Thread Starter 
Quote:
Originally Posted by Dopamin3 View Post
Unfortunately it is not stable

I would up the CPU vcore a little, try around 1.28v~1.30v. Sometimes the CPU will have one core that is a little weaker than the others, that's why it failed and it will need just a little more voltage to stabilize everything. Also most 1066mhz kits are rated for 2.1v, make sure you are running it at the right settings (check CPU-Z SPD tab). If you suspect memory might be causing problems run memtest86+
Thanks , i will try to increase the CPU Vcore...
But should i increase the Memory voltage too ? its rated @ 2.1v but i think its for FULL load right ? i mean im running on 800Mhz , 2.1 is a way too high for that speed ..
post #5 of 28
Quote:
Originally Posted by Leopardos View Post
Thanks , i will try to increase the CPU Vcore...
But should i increase the Memory voltage too ? its rated @ 2.1v but i think its for FULL load right ? i mean im running on 800Mhz , 2.1 is a way too high for that speed ..
Yea you should be fine running 800mhz 5-5-5-15 @ 1.8v. But if you do that what was the whole point of getting 1066mhz RAM in the first place if you weren't going to utilize it? What you might be able to do to get some more performance- try 800mhz 4-4-4-12 @ 2.1v and it should be stable (just double check with memtest86+). Or of course you could just set the RAM to 1066mhz but that might require a different FSB and multiplier for the CPU OC.
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post #6 of 28
Thread Starter 
Well , im at work right now , ofc that i will try to check this settings when i arrive home ...
Here is my Mobo template incase you chould help ... i would appreciate it notice that i adjusted the 5-5-5-15 and Vcore and memory voltage and others just as default ..

************************************************** *****
MB Intelligent Tweaker(M.I.T.)
************************************************** *****
Robust Graphics Booster ..............:
CPU Clock Ratio ......................:
Fine CPU Clock Ratio..................:
CPU Frequency ........................:

************** Clock Chip Control **************
>>>>>> Standard Clock Control
CPU Host Clock Control................:
CPU Host Frequency (Mhz) .............:
PCI Express Frequency (Mhz) ..........:
C.I.A.2 ..............................:

>>>>>> Advanced Clock Control.........: [Press Enter]
CPU Clock Drive.......................:
PCI Express Clock Drive...............:
CPU Clock Skew (ps)...................:
MCH Clock Skew (ps)...................:

*********** DRAM Performance Control ***********
Performance Enhance...................:
(G)MCH Frequency Latch................:
System Memory Multiplier .............:
Memory Frequency (Mhz) ...............:
DRAM Timing Selectable ...............:

>>>>>> Standard Timing Control
CAS Latency Time......................:
tRCD .................................:
tRP...................................:
tRAS..................................:

>>>>>> Advanced Timing Control........: [Press Enter]
tRRD..................................:
tWTR..................................:
tWR...................................:
tRFC..................................:
tRTP..................................:
Command Rate (CMD) ...................:

>>>>>> Channel A Timing Settings......: [Press Enter]
Static tRead Value....................:
tRD Phase0 Adjustment.................:
tRD Phase1 Adjustment.................:
tRD Phase2 Adjustment ................:
tRD Phase3 Adjustment.................:
Trd2rd(Different Rank)................:
Twr2wr(Different Rank)................:
Twr2rd(Different Rank)................:
Trd2wr(Same/Diff Rank)................:
Dimm1 Clock Skew Control (ps).........:
Dimm2 Clock Skew Control (ps).........:
DDR Write Training....................:

>>>>>> Channel A Driving Settings.....: [Press Enter]
Driving Strength Profile..............:
Data Driving Pull-Up Level............:
Cmd Driving Pull-Up level.............:
Ctrl Driving Pull-Up Level............:
Clk Driving Pull-Up Level.............:
Data Driving Pull-Down Level..........:
Cmd Driving Pull-Down level...........:
Ctrl Driving Pull-Down Level..........:
Clk Driving Pull-Down Level...........:

>>>>>> Channel B Timing Settings......: [Press Enter]
Static tRead Value....................:
tRD Phase0 Adjustment.................:
tRD Phase1 Adjustment.................:
tRD Phase2 Adjustment ................:
tRD Phase3 Adjustment.................:
Trd2rd(Different Rank)................:
Twr2wr(Different Rank)................:
Twr2rd(Different Rank)................:
Trd2wr(Same/Diff Rank)................:
Dimm1 Clock Skew Control (ps).........:
Dimm2 Clock Skew Control (ps).........:
DDR Write Training....................:

>>>>>> Channel B Driving Settings.....: [Press Enter]
Driving Strength Profile..............:
Data Driving Pull-Up Level............:
Cmd Driving Pull-Up level.............:
Ctrl Driving Pull-Up Level............:
Clk Driving Pull-Up Level.............:
Data Driving Pull-Down Level..........:
Cmd Driving Pull-Down level...........:
Ctrl Driving Pull-Down Level..........:
Clk Driving Pull-Down Level...........:

********* Motherboard Voltage Control *********
Voltage Types...........Normal..........Current
-----------------------------------------------
>>>>>> CPU
Load-Line Calibration.................:
CPU Vcore..............1.275000v......:
CPU Termination........1.200v.........:
CPU PLL................1.500v.........:
CPU Reference..........0.780v.........:

>>>>>> MCH/ICH
MCH Core...............1.100v.........:
MCH Reference..........0.800v.........:
MCH/DRAM Ref...........0.900v.........:
ICH I/O................1.500v.........:
ICH Core...............1.100v.........:

>>>>>> DRAM
DRAM Voltage...........1.800v.........:
DRAM Termination.......0.900v.........:
Channel A Reference....0.900v.........:
Channel B Reference....0.900v.........:
post #7 of 28
************************************************** *****
MB Intelligent Tweaker(M.I.T.)
************************************************** *****
Robust Graphics Booster ..............: Auto
CPU Clock Ratio ......................: 8.0
Fine CPU Clock Ratio..................: 0.5
CPU Frequency ........................: 3400

************** Clock Chip Control **************
>>>>>> Standard Clock Control
CPU Host Clock Control................: Enabled
CPU Host Frequency (Mhz) .............: 400
PCI Express Frequency (Mhz) ..........: 100
C.I.A.2 ..............................: disabled

>>>>>> Advanced Clock Control.........: [Press Enter]
CPU Clock Drive.......................: Default
PCI Express Clock Drive...............: Default
CPU Clock Skew (ps)...................: Default
MCH Clock Skew (ps)...................: Default

*********** DRAM Performance Control ***********
Performance Enhance...................: Normal
(G)MCH Frequency Latch................: 400
System Memory Multiplier .............: 2.00D
Memory Frequency (Mhz) ...............: 800
DRAM Timing Selectable ...............: Manual

>>>>>> Standard Timing Control
CAS Latency Time......................: 5
tRCD .................................: 5
tRP...................................: 5
tRAS..................................: 15

>>>>>> Advanced Timing Control........: [Press Enter]
tRRD..................................:
tWTR..................................:
tWR...................................:
tRFC..................................:
tRTP..................................:
Command Rate (CMD) ...................:

>>>>>> Channel A Timing Settings......: [Press Enter]
Static tRead Value....................:
tRD Phase0 Adjustment.................:
tRD Phase1 Adjustment.................:
tRD Phase2 Adjustment ................:
tRD Phase3 Adjustment.................:
Trd2rd(Different Rank)................:
Twr2wr(Different Rank)................:
Twr2rd(Different Rank)................:
Trd2wr(Same/Diff Rank)................:
Dimm1 Clock Skew Control (ps).........:
Dimm2 Clock Skew Control (ps).........:
DDR Write Training....................:

>>>>>> Channel A Driving Settings.....: [Press Enter]
Driving Strength Profile..............:
Data Driving Pull-Up Level............:
Cmd Driving Pull-Up level.............:
Ctrl Driving Pull-Up Level............:
Clk Driving Pull-Up Level.............:
Data Driving Pull-Down Level..........:
Cmd Driving Pull-Down level...........:
Ctrl Driving Pull-Down Level..........:
Clk Driving Pull-Down Level...........:

>>>>>> Channel B Timing Settings......: [Press Enter]
Static tRead Value....................:
tRD Phase0 Adjustment.................:
tRD Phase1 Adjustment.................:
tRD Phase2 Adjustment ................:
tRD Phase3 Adjustment.................:
Trd2rd(Different Rank)................:
Twr2wr(Different Rank)................:
Twr2rd(Different Rank)................:
Trd2wr(Same/Diff Rank)................:
Dimm1 Clock Skew Control (ps).........:
Dimm2 Clock Skew Control (ps).........:
DDR Write Training....................:

>>>>>> Channel B Driving Settings.....: [Press Enter]
Driving Strength Profile..............:
Data Driving Pull-Up Level............:
Cmd Driving Pull-Up level.............:
Ctrl Driving Pull-Up Level............:
Clk Driving Pull-Up Level.............:
Data Driving Pull-Down Level..........:
Cmd Driving Pull-Down level...........:
Ctrl Driving Pull-Down Level..........:
Clk Driving Pull-Down Level...........:

********* Motherboard Voltage Control *********
Voltage Types...........Normal..........Current
-----------------------------------------------
>>>>>> CPU
Load-Line Calibration.................: disabled
CPU Vcore..............1.275000v......: 1.3
CPU Termination........1.200v.........: 1.3
CPU PLL................1.500v.........: 1.5
CPU Reference..........0.780v.........:

>>>>>> MCH/ICH
MCH Core...............1.100v.........: 1.3
MCH Reference..........0.800v.........:
MCH/DRAM Ref...........0.900v.........:
ICH I/O................1.500v.........:
ICH Core...............1.100v.........:

>>>>>> DRAM
DRAM Voltage...........1.800v.........: 2.1
DRAM Termination.......0.900v.........:
Channel A Reference....0.900v.........:
Channel B Reference....0.900v.........:

This is what I would suggest for 3.4ghz. You can likely hit 3.6Ghz with these settings as well by simply moving FSB from 400 to 425. Ram with this setup is only going to run at 800, but it will scale as FSB is increased. Once you decide on a stable overclock we can address timing and speed of memory if needed. Are you using the stock cooler or aftermarket cooling?
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post #8 of 28
Thread Starter 
Thank you very much for your help ...

It was stable for 3 hours with this settings , i tried 3.6 with same settings but wasnt stable ...
I tried 1.32500v vcore ... same , wasnt stable either ..
i tested the memory for 7 hours with memtest and passed without any errors ... so the problem must be with the cpu settings ...
the memory settings 5-5-5-15 1020mhz ....

Is there any other voltages that i have to push alittle up along with the vcore ?

Thanks

EDIT: I dont know if i told you before , but i have the C1 stepping cpu ... not E0..
post #9 of 28
Cpu Term is another important voltage that needs to be scaled with increases in FSB. It supplies voltage to the FSB. I always ran mine higher than what I had vcore set at. You should be fine up to 1.4-1.45 on cpu term with proper cooling, but I didn't need that much till around 470+ FSB. For a 425-450 FSB a 1.35v-1.4v cpu Term should be sufficient.

Even though yours is a C1, you should still be able to hit 3.6 fairly easy. I don't think 3.8 is out of the question either, but I don't have any experience with the C1, just what I have read on various sites regarding the difference between C1 and E0.
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post #10 of 28
Thread Starter 
Quote:
Originally Posted by Valafar View Post
Cpu Term is another important voltage that needs to be scaled with increases in FSB. It supplies voltage to the FSB. I always ran mine higher than what I had vcore set at. You should be fine up to 1.4-1.45 on cpu term with proper cooling, but I didn't need that much till around 470+ FSB. For a 425-450 FSB a 1.35v-1.4v cpu Term should be sufficient.

Even though yours is a C1, you should still be able to hit 3.6 fairly easy. I don't think 3.8 is out of the question either, but I don't have any experience with the C1, just what I have read on various sites regarding the difference between C1 and E0.
Im testing 3.6ghz with 1.325000v
and 1.3v Cpu Term
I got the ram speed back to 800 from 1020 , what do you think ? keep it at 1020 since its passed in memtest for 7 hours ? and adjust the cpu only ?

Thanks again for your support .... cheers
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