I just wanted to post a follow up, on my successfully getting 3.8GHz back and more!
My key, was getting new RAM. I baught one if these kits:
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1000 (PC2 8000) Dual Channel Kit Desktop Memory
http://www.newegg.com/Product/Produc...82E16820231145
I plan on getting a second!
Fixed me right up...
System was stuck at:
Q6600 is at 3.47GHz, and GX2 SSC is running at stock speed.
(That would be Core=675, Shader=1674, and Memory=1050.)
Corsair XMS2 2GB(1 x 2GB) SDRAM DDR2 800 (PC2 6400) operating in Single Channel mode. (One Stick)
Memory was rated at 5-5-5-18, and was running at stock settings.
System was testing at:
3DMarkVantage Score = P 10,317 3DMarks.
CPU Score = 11,938
Graphics Score = 9,870
3Dmark06 Score was 17,730.
Vista's Performance Information Tool:
Processor - 5.9
Memory - 5.7
Graphics - 5.9
Gaming graphics - 5.9
Primary hard disk - 5.9
Everest Memory benchmark:
Memory Read - 5,985 MB/s
Memory Write - 6,039 MB/s
Memory Copy - 5,045 MB/s
Memory Latency - 72.1ns
Both new sticks tested good, and my Vista Ultimate is now enjoying 4GB of RAM -vs- the 2GB's I was running on. I did also verify that I am now officially operating in Dual Channel Mode, using CPU-Z.
I wanted to try a test:
With my Q6600 set in the BIOS to 3.47GHz, to match the exact same speed I was stuck at, I reran some tests with my new RAM installed...
My old ram was 5-5-5-18, and this new G.SKILL's is rated at 5-5-5-15.
3DMarkVantage Score = P 10,427 3DMarks. (+ 110)
CPU Score = 12,212 (+ 274)
I couldn’t get the rest due to the Vantage web page not displaying my info correctly at the time.
3Dmark06 Score 18,091. (+ 361)
SM2.0 = 7,066
SM3.0 = 8,745
CPU = 4,890
Vista's Performance Information Tool:
Processor - 5.9
Memory - 5.9 (Was 5.7 !!)
Graphics - 5.9
Gaming graphics - 5.9
Primary hard disk - 5.9
Everest Memory benchmark:
Memory Read - 8,547 MB/s (+ 2,562 MB/s)
Memory Write - 7,776 MB/s (+ 1,737 MB/s)
Memory Copy - 7,831 MB/s (+ 2,786 MB/s)
Memory Latency - 58.6ns (13.5ns lower latency)
I am using the following BIOS settings, and only changing FSB Frequency, and the lowest possible voltage I can to Prime error free two hours. My system has a nasty habit of getting an error 1Hr 10min into prime, if the CPU is a wee bit low on voltage for stability. That is why I only record data after 2 hours of error free run time.
My GX2 being the issue turned out to be false. Funky memory was, and am getting a refund.
Here is my 1004 Bios settings, and were used for generating all chart data below.
Under Extreme Tweaker
Ai Overclock Tuner : Manual
OC From CPU Level Up : Auto
CPU Ratio Setting : 9
FSB Frequency : XXX (Select from listing below)
FSB Strap to North Bridge : 400
PCI-E Frequency: 100
DRAM Frequency: DDR2-XXXMHz (Changes based on FSB selected)
DRAM Command Rate : 2T
DRAM Timing Control: Manual
CAS# Latency : 5
RAS# to CAS# Delay : 5
RAS# Precharge : 5
RAS# ActivateTime : 15
RAS# to RAS# Delay : 3
Row Refresh Cycle Time : 50
Write Recovery Time : 6
Read to Precharge Time : 3
Read to Write Delay (S/D) : 8
Write to Read Delay (S) : 3
Write to Read Delay (D) : 5
Read to Read Delay (S) : 4
Read to Read Delay (D) : 6
Write to Write Delay (S) : 4
Write to Write Delay (D) : 6
DRAM Static Read Control: Enabled
Ai Clock Twister : Strong
Transaction Booster : Auto
CPU Voltage : X.XXXXv (See listing)
CPU PLL Voltage : Auto
North Bridge Voltage : 1.61v (BIOS) (Everest is reporting 1.65v's.)
DRAM Voltage : 1.96v (BIOS) (Everest is reporting 2.10v's.)
FSB Termination Voltage : 1.48v (BIOS) (Everest is reporting 1.55v's.)
South Bridge Voltage : 1.050v (BIOS) (Everest is reporting 1.09v's.)
Loadline Calibration : Enabled
CPU GTL Reference : 0.63x
North Bridge GTL Reference : 0.67x
DDR2 Channel A REF Voltage : DDR2_REF
DDR2 Channel B REF Voltage : DDR2_REF
DDR2 Controller REF Voltage : DDR2_REF
SB 1.5V Voltage : 1.50v (BIOS) (Everest is reporting 1.57v's.)
NB LED Selection : NB Volt
SB LED Selection : SB Volt
CPU LED Selection : CPU Volt
Voltiminder LED : Enabled
CPU Spread Spectrum : Disabled
PCIE Spread Spectrum : Disabled
Under Advanced
And CPU Configuration:
CPU Ratio Setting : 9
C1E Suppport : Disabled
CPU TM Function : Enabled
Vanderpool Technology : Disabled
Execute Disable Bit : Disabled
Max CPUID Value Limit : Disabled
Under Advanced
And USB Configuration :
USB Functions: Enabled
USB 2.0 Controller : Enabled
USB 2.0 Controller Mode: HiSpeed
BIOS EHCI Hand-off : Enabled
Port 64/60 Emulation : Disabled
Legacy USB Support : Enabled
Note: The only thing OC'ed on my GX2 SSC is the fan!
FSB -- DDR2 ----- BIOs ----- CPU-Z ------ BIOS ---- Everest - CPU-Z -- 3DMark06 - SM2.0 -- SM3.0 --- CPU ---- Vantage --- CPU -- Graphics
420 -- 840MHz -- 3.79GHz -- 3.7801GHz -- x.xxxxxv -- x.xxv --- x.xxxv --- 19,296 -- 7,661 --- 9,062 --- 5,375 --- P10,553 -- 13,167 -- 9,898
421 -- 842MHz -- 3.80GHz -- 3.7895GHz -- 1.51875v -- 1.50v -- 1.496v -- 19,305 -- 7,647 --- 9,078 --- 5,385 --- P10,553 -- 13,164 -- 9,899
422 -- 844MHz -- 3.81GHz -- 3.7979GHz -- 1.51875v -- 1.50v -- 1.496v -- 19,364 -- 7,690 --- 9,113 --- 5,369 --- P10,583 -- 13,281 -- 9,912
423 -- 846MHz -- 3.82GHz -- 3.8074GHz -- 1.53125v -- 1.51v -- 1.512v -- 19,164 -- 7,550 --- 9,042 --- 5,358 --- P10,595 -- 13,441 -- 9,896
424 -- 848MHz -- 3.83GHz -- 3.8164GHz -- 1.53125v -- 1.51v -- 1.512v -- 19,226 -- 7,570 --- 9,047 --- 5,419 --- P10,574 -- 13,254 -- 9,906
425 -- 850MHz -- 3.84GHz -- 3.8252GHz -- 1.53125v -- 1.51v -- 1.512v -- 19,503 -- 7,766 --- 9,141 --- 5,428 --- P10,574 -- 13,262 -- 9,905
426 -- 852MHz -- 3.85GHz -- 3.8346GHz -- 1.53750v -- 1.53v -- 1.528v -- 19,499 -- 7,762 --- 9,123 --- 5,447 --- P10,564 -- 13,232 -- 9,899
427 -- 854MHz -- 3.86GHz -- 3.8430GHz -- 1.xxxxxv --- 1.5xv -- 1.5xxv --- xx,xxx -- xx,xx ---- x,xxx --- x,xxx ---- P10,xxx --- xx,xxx -- x,xxx
Still working on it...
For each FSB test, I rebooted and waited for all disk activity to stop. I ran Vantage first, then 3DMark06 second. Each program only received 1 run, and data was recorded.
Chart data recorded:
FSB selected - What DDR2 Frequency will be required - How fast the BIOS reports when booting - How fast CPU-Z reports from Vista - Lowest voltage required to Prime 2hrs (BIOS setting) - Everest reported Core voltage - CPU-Z reported core voltage - 3DMark06 score using default settings - 3DMark Vantage using default settings.
Between the memory being faster, and me being able to OC from 3.4GHz, to 3.8GHz on my CPU, I added 1,800 to 1,900 points onto my 3DMark06 score.
Not too bad for some cheep ram!
FYI - I am just starting to get a grip on a lower core voltage at stock settings, can be an indication of a good chip. The lower the better.
Over in the 'Official Q6600 Overclocking' thread, it was posted that the L7 series Q6600's were the last of the 'real good' over-clockers.
My chip is L726B397, and the first time I ever powered my Maximus on at stock settings, CPU-Z reported my core voltage at only a skinny 1.224v's.
Ref link with picture: http://www.xtremesystems.org/forums/...=160606&page=5 (Near the bottom)
This chip might actually have been a pretty good catch?
Now that I am paying attention to it, not too many guy's have been reporting theirs that low by default.
Currently with just my CPU and NB in my loop, my max temp's don't cross 60C two hours into Prime! Usually around 55C most of the time on all 4 cores. It only spikes to about 59C for a few seconds, even when I'm hitting my chip with 1.5v's.
I will say that BIOS 1004 takes a wee bit more core voltage than 907 did, for me to be able to Prime 3.81GHz error free.
My CPU voltage was 1.51250v (BIOS) under 907, and Primed four hours error free, -vs- 1.53125v (BIOS) under 1004, Primed two hours error free.
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