how low can vcore get and still be stable (q9550 @ 3.4)

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i have no idea about pcie, i have read that you need to leave it at 100, but i am not sure at all.

p.s. i just OCed to 3.625 with a vcore of 1.368v and CPU FSB at 1.3v, anything lower on vcore and im not stable at all. and I cant take my q9550 higher than that(i.e. like 3.8) i even tried at 1.4v but its still not stable.
 
holy jesus thats crazy good, at 1.125 wow man. thats a special chip you got there. I have no idea why i cant get it stable with a lower vcore. did you up your CPU FSB(vtt?) much?
 
i never touched any voltages except ram 2.1 and vcore, yeah its a very good chip, im running it at 3.4 stable with only 1.1375 vcore, and 3.8 with only 1.250, im sure i could lower vcore even more if i knew how to set those gtl voltages, by the way the chip is C1 revision, it aint even E0
 
is there any chance i could run 533 fsb, memory 1066, multi 6.5 for the 3464 clock?

do u think q9550 and corsair dominator can handle such high fsb?
 
my blend test fails after a few minutes on one of the cores, vcore 1.1475, fsb 400, strap 400, vdimm 2.1, but small fft can go on for hours, i dont see why memory would fail if corsair dominator has been verified to operate at 2.1 , 1066
 
ok guys, whats ur method of searching for "fsb wall", i lowered the multi to 6, raised the fsb to 533 and kept the memory < or = 1066, it just couldnt boot anymore until bios loaded the default values,

then i took a more gradual approach, i raised it slowly to 450, 470 seeing if itll boot into windows, i managed to boot into windows at fsb 493 but not at 494, even at fsb 493 i managed to stay stable only for a coupla minutes, it froze on me like a bitch, i did all this on vcore 1.25, im not sure if i needed more vcore but i tried setting 1.3 to boot on 494 fsb, still no luck, whats ur recipe of learning what the maximum stable fsb is?
 
my temps are fine. so im not worried, and i made another thread asking what ppl thought about the high voltage. I guess its okay to leave it as such, i might pull it back down to 1.275 3.4ghz to be safe. I see no difference in games from the 200mhz.
 
Eh, its not that unusual... I have a q9550 at 3.85 24 hour prime95 stable at 1.25 too

I want some AWESOME CHIP MAN!!!

Love too 🙁

Yeah those 5 fps make a huge difference 😀
 
ROFL !!! HAHAHAHA WHAT ??? 3.85 at 1.25 stable thats INSANE !!!! lol anyone driving that clock at that voltage needs some serious lovin, ill ask my girlfriend if shell come over to ur place and u let ur chip walk over to mine
 
my stupid chip doesnt like anything over 3.4, and when i do make that bitch go over that it wants the max amount of voltage i can give it, lol. you guys are lucky
 
i havent been stable in blend mode (prime95) since i bought this rig almost 3 months ago

there would always be rounding errors only 2 mins into testing

today i changed these two options from auto to disabled and the last option from auto to lighter and voila its priming without errors for 2 and a half hours now

DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
AI Clock Twister: Lighter





this is the current config:


AI Overclock tuner: Manual
CPU Ratio Setting: 8.5
FSB Strap to North Bridge: 400 MHz
FSB Frequency: 400
PCI-E Frequency: 100
DRAM Frequency: DDR2-1066
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: manual

1st Information : 5-5-5-15-3-52-6-3

CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: AUTO
Write Recovery Time: AUTO
Read to Precharge Time: AUTO

2nd Information : 7-3-5-4-5-4-6

READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO

3rd Information : 14-5-1-6-6

WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
MEM. OC Charger: AUTO
AI Clock Twister: Lighter
AI Transaction Booster: Auto
C/P : A1 A2 A3 | B1 B2 B3
LVL : 09 09 09 | 09 09 09


CPU Voltage: 1.14375
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage: AUTO
FSB Termination Voltage: AUTO
DRAM Voltage: 2.10
NB Voltage: AUTO
NB GTL Reference: AUTO
SBridge Voltage: AUTO
PCIE SATA Voltage: AUTO

Load Line Calibration: Enabled
CPU Spread Spectrum: AUTO
PCIE Spread Spectrum: AUTO
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Enhancement: Optimized

Advance CPU Settings
CPU Ratio Setting: 8.5
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Enabled



would any of u guys change anything and why?
 
ok those 3 options i changed in the last post actually made me fail post today, i tried to turn on my machine and no video signal on the tv, i tried reseating everything and when i finally took out one 2 gig dominator stick the post went thru and it said "overclocking failed"

i immediately knew it was those last changes i made that were the culprit

 
ok what i did now was lower the voltages one notch above minimum and enabling LLC and disabling CPU and PCIE spread spectrum, the setup looks like this now:



AI Overclock tuner: Manual
CPU Ratio Setting: 8.5
FSB Strap to North Bridge: Auto
FSB Frequency: 400
PCI-E Frequency: 100
DRAM Frequency: DDR2-1066
DRAM CLK Skew on Channel A1: AUTO
DRAM CLK Skew on Channel A2: AUTO
DRAM CLK Skew on Channel B1: AUTO
DRAM CLK Skew on Channel B2: AUTO
DRAM Timing Control: manual

1st Information : 5-5-5-15-3-52-6-3

CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 15
RAS# to RAS# Delay : AUTO
Row Refresh Cycle Time: AUTO
Write Recovery Time: AUTO
Read to Precharge Time: AUTO

2nd Information : 7-3-5-4-5-4-6

READ to WRITE Delay (S/D): AUTO
Write to Read Delay (S): AUTO
WRITE to READ Delay (D): AUTO
READ to READ Delay (S): AUTO
READ to READ Delay (D): AUTO
WRITE to WRITE Delay (S): AUTO
WRITE to WRITE Delay (D): AUTO

3rd Information : 14-5-1-6-6

WRITE to PRE Delay: AUTO
READ to PRE Delay: AUTO
PRE to PRE Delay: AUTO
ALL PRE to ACT Delay: AUTO
ALL PRE to REF Delay: AUTO
DRAM Static Read Control: Disabled
DRAM Read Training: Disabled
MEM. OC Charger: AUTO
AI Clock Twister: Lighter
AI Transaction Booster: Auto
C/P : A1 A2 A3 | B1 B2 B3
LVL : 09 09 09 | 09 09 09


CPU Voltage: 1.14375
CPU GTL Voltage Reference (0/2): AUTO
CPU GTL Voltage Reference (1/3): AUTO
CPU PLL Voltage: 1.52
FSB Termination Voltage: 1.12
DRAM Voltage: 2.02
NB Voltage: 1.12
NB GTL Reference: AUTO
SBridge Voltage: AUTO
PCIE SATA Voltage: AUTO

Load Line Calibration: Enabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Enhancement: Optimized

Advance CPU Settings
CPU Ratio Setting: 8.5
C1E Suppport: Disabled
Max CPUID Value Limit: Disabled
Intel® Virtualization Tech: Disabled
CPU TM Function: Disabled
Execute Disable Bit: Enabled




i didnt touch gtl voltages or references coz i presume they wont overvolt above safe values or will they, is there anything out of the ordinary with this setup or is it safe for 24/7 use?
 
Wow you must have a really good CPU I can't even get my C1 to go to 3.0 on 1.25vcore but then again im using a ep45ud3r and artic freezer 7
 
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