some but not much... according to zalman, the q6600 isnt even supported as it is a core2 quad not a core2 duo. if u are going with air do what everyone else did and get a thermalright... personally i prefer liquid.:up:
Printable View
Wussup guys any answers to the problem it keeps failing the 3dmark test i get a blue screen and crashes and fails occt test after 5 minutes i need some help cant seem to get it stable trying for a week
bios 907
Extreme Tweaker
Ai Overclock Tuner : Manual
OC From CPU Level Up : AUTO
CPU Ratio Control : Manual
- Ratio CMOS Setting : 9
FSB Frequency : 400
FSB Strap to North Bridge : 400
PCI-E Frequency: 110
DRAM Frequency: DDR2-800mhz
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 : AUTO
Row Refresh Cycle Time : AUTO
Write Recovery Time : AUTO
Read to Precharge Time : AUTO
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
DRAM Static Read Control: Enabled
Ai Clock Twister : light
Transaction Booster : disabled
Relax level: 0
CPU Voltage : 1.4000
CPU PLL Voltage : 1.60
North Bridge Voltage : 1.35
DRAM Voltage : 1.90
FSB Termination Voltage : 1.40
South Bridge Voltage : 1.075
Loadline Calibration : Enabled
CPU GTL Reference : Auto
North Bridge GTL Reference : Auto
DDR2 Channel A REF Voltage auto
DDR2 Channel B REF Voltage : auto
DDR2 Controller REF Voltage : DDR2-Ref
SB 1.5V Voltage : 1.5
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
i find it funny i tried to clock my quad @ 3.2ghz 1.35v and it wasnt stable so i went back to 3.6ghz 1.4v and it was fully stable again
Probably because most G0s are capable of 3.2ghz on stock voltage, so why would you have 1.35v? You probably had to much voltage for a low clock lol. 1.4v is about normal for 3.6ghz. I'm prime stable at 3.6ghz with 1.35v under full load, 1.42 in BIOS (HUGE vdroop)
Same thoughts, the only viable option from Zalman is the 9700, but it will be noisy and limited shortly. A Thermalright Extreme would be a better deal for air cooling
:confused: :confused:
I never heard that underclocking would cause a failure if you keep the vcore high too. Please, don't state what you don't know about...
He's not talking about 1.6v and 4GHz, he's talking about a 3.2GHz at 1.35v. If there's a problem, it is suerely a low vcore not a too high one causing hang ups
Remember, not all CPUs are the same. You're stable 3.6GHz at 1.35v, I'am at 1.33v, I was at 1.44v on my previous G0, and others are stable at only 1.5v...
If you can do 3.6ghz on 1.4v, then you certainly do NOT need 1.35 for 3.2ghz, voltage is NOT linear correlation to frequency. Therfore my point was that he would be using unnecessary volts, and unnecessary wear to his CPU, and if it were stable it would require closer to stock voltage for 3.2ghz.
So what exactly is it your baiting over?
Mines pretty new batch, and I have ~1.43v set in BIOS which is only 1.35v real.
So 1.4v just seems normal for 3.6ghz, mine needs a lot more voltage to go over 3.7ghz stable so I dont bother. 3.6ghz stable and lower volts than my E6600 is good enough for me.
Ok I couldn't wait so I purchased myself a G0 and put it in my Formula..
I'm using the following settings in the bios for 3.6GHz
BIOS 907
Extreme Tweaker
Ai Overclock Tuner : Manual
OC From CPU Level Up : AUTO
CPU Ratio Control : Manual
- Ratio CMOS Setting : 9
FSB Frequency : 400
FSB Strap to North Bridge : 333
PCI-E Frequency: 120
DRAM Frequency: DDR2-961
DRAM Command Rate : 2T
DRAM Timing Control: Manual
CAS# Latency : 4
RAS# to CAS# Delay : 4
RAS# Precharge : 4
RAS# ActivateTime : 12
RAS# to RAS# Delay : 6
Row Refresh Cycle Time : 42
Write Recovery Time : 7
Read to Precharge Time : 7
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
DRAM Static Read Control: Disabled
Ai Clock Twister : light
Transaction Booster : disabled
Relax level: 0
CPU Voltage : 1.4000
CPU PLL Voltage : 1.70
North Bridge Voltage : 1.71
DRAM Voltage : 2.20
FSB Termination Voltage : 1.50
South Bridge Voltage : 1.200
Loadline Calibration : Enabled
CPU GTL Reference : 0.63x
North Bridge GTL Reference : 0.67x
DDR2 Channel A REF Voltage auto
DDR2 Channel B REF Voltage : auto
DDR2 Controller REF Voltage : DDR2-Ref
SB 1.5V Voltage : Auto
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
I ran SPI 32M and 2 hrs prime and it seemed to be stable. Then tonight I noticed my temps at core 0/1 (especially at core 0) were bigger than core 2/3 and after a SPI32m it produced an error.. Generally core 0 can reach 10-12Celcius higher than core 2/3. Core 1 is 5-6Celcious higher than core 2/3, but low enough not to cause a problem with stability in torture tests.. The fact is that cpu0 which depicts by far the higher idle/load temp is the only one that causes the instability even at 1.4vcore. It reaches at 75C-78C sometimes and of course causes instability, while the other cores don't have problems whatsoever. Cpu1 reaches max 70-71 cpu2/3 max 68-69..
I tried to up the vcore to 1.425 and 1.45 but it only made cpu0 reach 75-78C quicker.. So the problem seems not to be the vcore but the hight temp that only this core depicts under load..
So what do you think is the case here? Do I need to test something else in the settings? Or are we talking about a uneven cpu surface? It could also be my Ultra 120 extreme that has the problem..
What do you suggest me to do ? It's really weird.. Cores 1,2,3 seems to have no problems with temps whatsoever.. 1.4v seems to be ok.. 1.45 certainly does not help all it does is raise more the temp in the cpu0, which is already high @1.4
Any ideas? Thnx in advance
Orbitech, I would lap it.
I had the exact same thing happen with one of my Q6600s. loaded temps were 68-59-54-54. I lapped it and now temps are 52 across all the cores.
Yes thank you DragonOrta..That's what I believe myself.. I was thinking of taking the cpu back to the store and request a change due to abnormally high temps in one core..
But then again I'm not so sure if I can find easily a cpu that does 3.6 @1.4v "stable" (well I can't really call a cpu stable when sometimes the same core fails with torture tests, but technically with a lapped cpu , it might have good O/C potential..
Am I right here or do you think that I should take it back?
If anyone is thinking something else that it might help then by all means plz say it..
If you can take it back and if the store has a 737B batch Q6600, I would get that one.
The Q6600 in my sig that's at 4.15ghz is a 737B.
I was gonna say earlier that I was unlucky needing 1.35v load for 3.6ghz lol.
I don't think I am lucky at all though, because I need over 1.5v for 3.7ghz stable so its not really worth it.
I am also a bit sus on my PWM heat sinks getting wicked hot on my X38 DS4, I am using setting I know work regardless of how hot it is, but sometimes not toally stable unless PWM heatsinks have active cooling.
I just replaced my old Q 6600 B3 stepping with a new G0 stepping with batch #L737B075. I had been struggling to get beyond 3200 MHz with my old processor, and was using over 1.400 volts to do so. My temperatures were always at or near 70 C when running Prime 95.
I have just started playing with this processor, but the results are quite encouraging. I had planned on going with a new E8500, but the reports of sudden CPU death put me off a bit. Then I did a lot of research about Q6600 G0 performance from this thread and a couple of others to create a list of desirable batch numbers and went shopping.
I spent two days going to the various computer stores in my area, and it came down to a choice between this L737B075 and an L738B023. Both CPU's looked good, but the L737 series has had some great results so I went with it. This is what I have achieved so far:
http://img441.imageshack.us/img441/4...ewq6fv0.th.jpg
Note the low core voltage, and VID is just 1.2125in Core temp 0.96 with all CPU features off (ony have multiple cores enabled).
Max temperatures with my new CPU during 10 hrs of Prime 95 at 3432.96 MHz were 56, 52, 52, 55. This was with an out of box CPU with new thermal paste.
Compare this with my B3, which was lapped to a 2000 grit finish, and temperatures of 67, 63, 63, 66 at 3207.88 MHz. It was a good processor, and I got 458 FSB out of it, but I know the new CPU is a LOT better:yepp:
470Mhz is to easy :D
Testing 480Mhz...
http://img136.imageshack.us/img136/1...0470fsboi6.jpg
My Overclock isn't that extreme.. yet. If you guys could help me out that would be awesome :)
Q6600 G0 (not lapped)
ABIT IP35 Pro
OCZ Platinum Revision 2 2GB
Thermaltake V1 w/ AS5 (not lapped)
Vista 64 Bit
vCore: 1.4125
Mem: 5-5-5-15 @ 2.1
http://img137.imageshack.us/img137/2996/idle2008bt2.jpg
http://img223.imageshack.us/img223/4...ess2008ea8.jpg
http://img238.imageshack.us/img238/8969/q6600hx4.jpg
What a man can learn from not setting up his cpu cooler appropriately.. :rolleyes:
I can also do SPI 32M @ 1.3V (haven't tested yet if it's stable there, and you wanna know the fun part? 1.26V did SPI 1M.. Haven't tested more there I saw some inconsistencies in the O/S and stopped.. :rofl:
My temps now are very low not only due to the very low vcore but also due to making my cpu cooler "sit" properly in its place.. :)
I'm stable for 3 hrs prime95 now with this clocks with very good temps for aircooling and rediculously high room temps.. :up:
LOL
It will only go down as the thermal paste wears in also.
what cooler do you have for your C2Q? I used a left over thermtake retention bracket for hardmounting my FuZioN because I didn't like to just have screws hrough the motherboard without backing.
When I saw SPI running @3.6 (1.26v) I couldn't stop laughing with my friend..
My E6600 needs 1.525 to run @ 3.6GHz.. :rofl: Yes I know incomparable things in many aspects but still way to funny to see a quad being so efficient..
As for the cooler ,TR Ultra 120 extreme.. For 24/7 3.6GHz is a piece of cake for air now with low temps most importantly... Yes it can only go lower with the Ceramique the next 2-3 days .. :up:
Haven't tested higher than that with air, I think I'll wait for my new w/c setup and then I'll see what it can do further.. Very promising though for now..
L733B (vid 1.2250) of course..
i reconfigured to a slower 3.6 Stable...
and its actually making me re-think my previous settings for 3.94...
http://i48.photobucket.com/albums/f2...2976/36ghz.jpg
:up:
Hi, there is some test FSB with my DFi DK P35 :D
http://img185.imageshack.us/img185/7...35q6600mq7.jpg
ZenEffect we posted at the same time :rofl:
I keep seeing high FSB clocks with low multi's on the quads with the DK board. Let's see an 8 hour run of prime of at least 3.6ghz on a quad.
Would I really get any noticable performance gains using 450x8 than I am with 400x9?
I spent the last two or three months struggling with a hot and not very speedy B3 Q6600 CPU. I was eventually able to get to 3200 MHz with it, but it took 1.4 volts in BIOS and an hr of lapping IHS to 2000 grit finish to do so. My Prime95 temps at this speed were between 68 and 72 C. At one point, I thought my Patriot Pc-8500 memory sticks with Micron D9 GKX IC's were the problem, so I spent $400+ to get high end Corsair memory with Micron D9 GMH IC's (P35 chipset based motherboards seem to like the GMH Ic's better).
Late last week, I replaced it with a new Q6600 G0 stepping processor. I had planned on getting a new E8500 processor, but it was on back order. This gave me an opportunity to do a comparison between my old B3 processor and the new G0 stepping in the same system, so I set my new CPU to 3200 MHz and worked with it to obtain its minimum Prime95 stable settings.
Here is what I found: My old CPU needed 1.400 vCore to get to 3200 MHz, while my new one needed only 1.2175 volts. My old CPU had load temps of 72, 70, 70, 72 C, while my new CPU had load temps of 43, 39,39,43 C. Note that the old CPU's IHS had to be lapped to try to equalize core temps, so its mating surface with the lapped Thermalright Ultra 120 Extreme HSF was definitely an advantage for heat transfer.
My new G0 stepping CPU has a 8hr Prime95 stable OC of 3752 with 1.3750 vCore in BIOS, but I have my everyday setting at 3600 MHz (9 x 400 MHz FSB) with a vCore of 1.2875 in BIOS (1.296 as shown in CPU-Z). Under Prime95 with these everyday settings, my load temps never exceed 56 C and are usually between 51 and 54 C.
In the end, the difference between a B3 and a G0 processor for me was this: -.1825v (for G0 at max OC speed of B3 compared to B3), -.0250v (for G0 at max 8hr Prime 95 stable OC compared to B3 at its maximum 8hr Prime 95 stable OC), -29-31 C (for G0 temperatures at max OC speed point of B3 compared to B3), and +552 MHz (the current difference between the 8 hr Prime95 stable OC points of my G0 and B3 CPU's).
Those affirmations are what made me :confused: :confused:
The words "always", "never", "certainly" shouldn't be used by any real overclocker, as every chip is different. It is well known, and even was lastly published with nice curves at anandtech, that there's a linear relation between vcore and frequency for most CPUs. But, this stops till a point where the curve becomes exponential. That is, a minimal frequency increase will need much more volts than before. The more you claimb in frequency, even higher will be the vcore needs. For most G0 Q6600 chips, that limit is between 3.6-3.7 GHz (it is also your case). For many it is near 3.4 GHz, and for a few of us it is between 3-3.2 GHz. Just read through the forums (XS is not the only one, heh...) and you'll realize it.
I didn't mean in anyway to be rude, but if someone has an unstable OC on small FFT, suerely it is not due to a high vcore, unless it is too hot. And yes, that's at least something for sure. So, yes, he can be stable at 1.4v for 3.6GHz and unstable at 3.2GHz with 1.35v. Lowering his vcore while he's unstable is not a good answer from you, right?
My two cents, take it or leave it and no need to comment on this thingy for longer.
Well I think you better look up an exponenial graph then. Exponention can start almost running dead flat, and end up at a complete right angle, but the change becomes more promenant at higher frequency. Obviously. There's nothing linear about it, just that notice it more because the curve becomes more promonant.
I would put money that to get 3.7ghz for example you would need alot more than 1.4v, thats called an exponential graph.
Talking about 3.7Ghz .. while for 3.6Ghz i need 1.4V with my Q6600, when i run 1.425V and 3.7Ghz, prime runs for few minutes, then black screen, BSOD and restart, where could be the problem? NB and SB cooling?
My CPU similarly needs 1.4v for 3.6ghz but need 1.5v for 3.7ghz.
Exponential curve. What I was trying to explain above.
So I would say, simply not enough CPU voltage.
What are your max FSB on air/water?
You can tell where my chip just wont get any higher no matter how many volts I give it.
Core Voltage - 1.4275
Memory - 5-5-5-15 1:1
Frequency - 378.00 X 9.0 (3402.00)
Load Temp – Under 60
Stress Test: PASS
Core Voltage - 1.4275
Memory - 5-5-5-15 1:1
Frequency - 380.00 X 9.0 (3420.00)
Load Temp – Under 65
Stress Test: PASS
Core Voltage - 1.4275
Memory - 5-5-5-15 1:1
Frequency - 382.00 X 9.0 (3438.00)
Load Temp – Under 65
Stress Test: PASS
Core Voltage - 1.4275
Memory - 5-5-5-15 1:1
Frequency - 384.00 X 9.0 (3456.00)
Load Temp – Under 65
Stress Test: FAIL
Core Voltage - 1.4375 (bump .01 since I failed)
Memory - 5-5-5-15 1:1
Frequency - 384.00 X 9.0 (3456.00)
Load Temp – Under 65
Stress Test: PASS
Core Voltage - 1.4375
Memory - 5-5-5-15 1:1
Frequency - 386.00 X 9.0 (3474.00)
Load Temp – Under 65
Stress Test: FAIL
Core Voltage - 1.4475 (bump .01 since I failed)
Memory - 5-5-5-15 1:1
Frequency - 386.00 X 9.0 (3474.00)
Load Temp – Under 65
Stress Test: FAIL
Core Voltage - 1.4575 (bump .01 since I failed)
Memory - 5-5-5-15 1:1
Frequency - 386.00 X 9.0 (3474.00)
Load Temp – Under 70
Stress Test: PASS
Not a lot of information to assertain if its your CPU reaching it max capability or not. Whats your setup and BIOS setting.
Lol they should continue to increase in speed as you increase the voltage. You only need to look through previous results. Who is to say something else like NB voltage is not limiting you? Or other temps. Nor was your last increase very much as they need more voltage for each increase in frequency after a certain point from stock.
There is hardly any information, not to mention your last run was a pass, so increase speed again and voltage untill it fails. Though of coarse not many people want to flog their hardware. Of course I can't say anything for certain because I tend to get flamed.
having problems with my quad. it seems that i'm using only 2 cores. as u can see, even in idle temps are realy strage what should i do?
configuration:
CPU RATION CONTROL- [manual]
RATION CMOS SETTINGS- [9]
C1E SUPPORT- [disabled]
MAX CPUID VALUE LIMIT- [Disabled]
VANDERPOOL TECHNOLOGY- [Disabled]
CPU TM FUNCTION - [Enabled]
EXECUTE DISABLE BIT - [ Enabled]
Ai OVERCLOKING - [manual]
CPU RATIO CONTRO - [manual]
RATIO CMOS SETTINGS - [9]
FSB STRAP TO NORTH BRIDGE- [auto]
FSB FREQUENCY- [333]
PCI-E FREQUENCY- [auto]
DRAM FREQUENCY- [auto]
DRAM COMMAND RATE- [2T]
DRAM TIMING CONTROL- [auto]
DRAM STATIC READ CONTROL- [auto]
TRANSACTION BOOSTER- [auto]
CLOCK OVER CHARGING MODE- [auto]
CPU SPREAD SPECTRUM- [disable]
PCI-E SPREAD SPECTRUM- [disable]
CPU VOLTAGE- 1.28
CPU VOLTAGE REFERENCE- [auto]
CPU VOLTAGE DAMPER - [Enabled]
CPU PLL VOLTAGE-[auto]
DRAM VOLTAGE-[auto]
FSB TERMINATION VOLTAGE- [auto]
NORTH BRIDGE VOLTAGE- [auto]
NORTH BRIDGE VOLTAGE REFERENCE- [auto]
SOUTH BRIDGE VOLTAGE - [auto]
http://img514.imageshack.us/img514/1354/wdfyc3.jpg
http://img514.imageshack.us/img514/1...9576869638.jpg
http://img514.imageshack.us/img514/3892/wdfhs3.jpg
http://img514.imageshack.us/img514/3...5dfae8fe03.jpg
Try Prime v25.5 or 25.6.
When you start it, it will automatically launch the 4 cores.
I posted this over in the support area, but given this is the Q6600 G0 thread I thought I would ask here.
The original bad axe does not have 'official' support for ANY quad cores. However, people have indicated the Q6600 B3 stepping worked on the board perfectly. Does anyone here know if the Q6600 G0 stepping works on the original Bad Axe? If so, any reason to be worried without official support?
Thank you,
Chris
Well;
Bench means nothing for 24/7 -> Kentys run hot.
I can fully bench 3.8G 1.3V all loads, maybe less, never tried.
3.6G needs 1.264V to complete all benches.
BUT
It requires 1.264V idle real for 3.4G stable -> normal air cooling though.
3.6G @ 1.32V idle real will only fail P95 small FFT/large FFT on core 3. Passes blend, which is easier and less core stress.
3.6G @ 1.332V fails again on core 3.
Haven't tried more P95 but Linpack 10mins failed 1.352V idle/1.344V load real too. Failed in the calculation outputs. What does that mean? It means while the system runs at max loads perfectly fine, to the naked eye apparently, the actual computations are all mostly corrupted and slower than 3.6G should give. So you get less than 3.4G performance. :shakes:
Currently
400 x 8 (3200Mhz) @ 1.296V Loaded
Mobo asus P5E
Temps 55C loaded on True 120EX
Vid 1.3150
Want 450x8 for 3600Mhz what volt would be max recomended?
Psycho_eddie have you tested your CPU can do 450FSB at low multi and the volts needed? That's your starting base.
2 Days ago i decided to "refurbish my PC" so i bought an Q6600, funny part was it's G0 (5) revision and from 19.1.2008 factory date. Put it on 333 FSB so its 3.00 GHz now and im happy with that but i pu GeminiII with Noctia P12 on it [ one] and the temps are 34 - 38 idle and load 51 - 53. Isn't that too high with 1.15 V ?
Would have thought it would be lower with your settings at idle. I get 33-35c. Check the HS seating - what paste u using and how thick was it put on. Try a non conductive like Mx-2 or equivalant and apply nice and thin. Also check the CPU - IHS and your HS with a razor to see if they are flat - if not consider lapping whatevers not flat.
yup there is nothing wrong w/ sticking with 333mhz @ 3ghzQuote:
Originally Posted by Kondik
2 Days ago i decided to "refurbish my PC" so i bought an Q6600, funny part was it's G0 (5) revision and from 19.1.2008 factory date. Put it on 333 FSB so its 3.00 GHz now and im happy with that but i pu GeminiII with Noctia P12 on it [ one] and the temps are 34 - 38 idle and load 51 - 53. Isn't that too high with 1.15 V ?
you just got a QX9650 for 1/4th the cost. and only a SMALL performance loss. one that you will never see.
and that is something very few people think about.
you spend 250-270 on a Q6600, set the FSB to 333 and you just got a QX9650 that has a miniscule performance difference, and only runs slightly warmer, slightly. you just saved 800 bucks.
Sesdave is right check the IHS on your cpu. use a razor, and check it again with a 2nd razor to see if the 1st razor was flat.
most Q6600's that i have seen have a very small pocket, not like alot of the E6600's but a small one but with the gemini II (i have one) you need all the cooling help you can get.
thos eheatsinks are only 20 bucks or less and are a the best cooler in that price range. but you suffer for it because of its enormous size.
i had to remove the 120mm fan brackets to get it to fit in my V1000 case, and i have a single 120mm fan sitting on it.
adding a 2nd fan might help if you have the fan brackets on it but i dont think it will help alot.
i am real leary about these new larger heatsinks, so many of them wont even allow you to use them in your case because they actually hit the divider metal between the mobo and psu, BUT you may want to look into a scythe heatsink or an U120 Extreme.
check PetrastechShop.com he is member here and usually has the best price on the U120 Extreme. you can even ask him if he has any open box returned ones, last i talked to him he did have a couple. save you maybe 10 bucks..
my G0 sits @ 3.9ghz 1.45v 24/7
its an L737B
Been trying lower multi @ 450FSB as advised..
Cant get stable with even 6 multi run prime freezes instantly crapy Q6600?
400FSB works fine have (3200) 24/7 but wanted 3.6 seems golden speed people get with these!
To get 400x9 (3600) needs 1.5V
Gives me 72C all 4 cores loaded in prime.. not even sure if thats stable as only been running 15 mins!! but temp wise HOT :shocked:
Holdling 1 hour 30 mins Prime 95
400x9 (3600) @ 1.5V
FSB 1600MHZ
Temps 75C loaded :shocked: :shocked: :shocked:
Hey Guys!
I'm having some issue stabilizing my Q6600 G0, or so I'm thinking!
I've already run Orthos on the four cores, both FFTs and Blend tests, for two hours each without any errors. I've already also run a quad super-pi 32M, and 3D mark 2001 without any errors.
However, when I tried to run 3D Mark 05 and 06, both test failed, just when the second test was beginning. I got the same BSOD, with an error nv4_disp.dll. I've tried two different sets of drivers and even at stock speeds I can't pass those 3D Marks.
Any ideas?
Cheers
http://lites.no.sapo.pt/screenspd.jpg
Not all q6600 go's are the same.
I had a batch 738B that would not even post 450fsbx8 but did 400fsbx9 at 1.55Vcore. Not very good.
I now have a batch 727B that does 450fsbx8 at 1.325Vcore, 475fsb at 1.45Vcore and will get into windows at 490fsb 1.575Vcore but not stable, same rig. Much better cpu, very happy.
I dont see any better scores in benches 450fsb v 400fsb so you are still fine with 400fsb.
anyone know how these chips are doing?
http://img521.imageshack.us/img521/4426/quadsb8.jpg
While the L737 batch has been known to produce excellent overlockers (amongst the best in the G0 stepping,) higher number L737s, such as your L737B6, are much more hit or miss. Only way to find out how well your chip will do is to put it in your rig and test. Be sure to check the VID of the chip in Core Temp. If it's 1.325 (as many higher number 737s are,) you might be in for a bit of a challenge.
Just a head up for those that are planning to get a Q6600 in a near future, I got a Q6600 for my GF's family and the batch code is L745A with a VID of 1,2250V which seems to be quite good... I didn't test it much but I just raised it to 3GHz and lowered the voltage to 1,2V which resulted in P95 stability.
The CPU is running on a P5K Premium along with some G.Skill 4GB PC2-8000 ;)
I did took down that Geminy .. even if my case is huge ... Gigabyte 3D Aurora 570S .. i simply can't put it there in a way it would stick correctly and won't block something ... when I mount it sideways ... it blocks Memory modules with Thermaltake Cooling ... 90 degrees more ... VGA card , another 90 Degrees .... back of the case .. in the time of testing the front side was pointing at the PSU Fan .. [ 2 Thermalright towers on South Bridge and North Bridge ... they block anything in their way .. ] .. I think i'll put the Geminy back in the BOX and order an tower like Thermalright 120 .. i tried to put as many passive coolers as i could in the case to minimalise the noise ... and i have just 5 12 CM Nosctuas 2x S12 800 exhaust 2x P12 1000 Intake and one P12 1300 on the Gemini thing ... but still 38 with that massive cooler .. maybe it was because of that mounting ... it was mounted completley wrong .. BTW im using MX-2 as a "cooler lubricant" (:
Previous post with complete info: http://www.xtremesystems.org/forums/...postcount=1936
Update:
Mine won't do 3600MHz 100% stable on air, well it will but the volts/temps are too high, which means for every day use = no. It needs wc, simple as that. At 22-28C ambients like I'm usually at, they're way too high, and that will jump to 30C-36C ambient very soon.
For the run below I dropped the ambient case to 18C, not because of stability testing or getting a result, but because I was testing Orthos/OCCT/Prime95/Linpack/TAT at 3.6G for another thread and needed it fully TAT/Linpack stable (which requires much higher volts) with temp. headroom since TAT really makes the temps fly out of bounds and 82C software core temp readings would reboot my system.
Fact is on air, with typical cooling voltage kills and boosts heat output insanely so these are the temps you'll expect, only a few degrees lower with the best possible air. TT120 holds my system at 65/65/59/58C, not much lower to Zalman 9700 with a good base and contact.
Also, I'm seeing many unstable cores around. Don't game/use system if you stability test like some of you seem to be doing, leave Prime95 as the main highlghted window or your results will be errorful. Any core which is unstable shows stability in a few simple ways:
a) error output
b) system reboots
c) error/reboot on stopping prime test
d) runs through the calculations slower than is supposed to
e) core slows down compared to the rest. If P95 is left as the window in focus with nothing else taking up main CPU cycles then the core that is not working on the similar (close by) iteration/FFT length as others is faulty and unstable.
As a guide, by 9hours P95 small FFT @ 3600MHz 400FSB 1000-1066 RAM, all cores should be passed 28k and very near to passing 32k.
1.378V BIOS -> 1.376V Idle (1.362V DMM) -> 1.328V load (1.316V DMM) - fail on core 3 and passed on all othersQuote:
Originally Posted by KTE on 22/01/08
Since MB is already taken on a deal I can't mod it for vdrop and vdroop.
So I jumped the gap between 1.378V BIOS to 1.4V, mainly for time.
1.40V BIOS -> 1.392V Idle (1.386V DMM) -> 1.360V all loads/1.344V TAT load (1.354-358V/1.336-1.338V DMM)
MCH - +0.05V
FSB - +0.1V
9hrs Small FFT stable + high temps when using one total system fan
Linpack/TAT 1hr stable too
Idle - Load
http://img352.imageshack.us/img352/9...idlejl0.th.png - http://img208.imageshack.us/img208/3...elowrl4.th.png
At current 28C ambient the 3hr+ smallFFT load temps are 75/75/71/72C. :(
I suspect it will be Linpack stable with less voltage too, somewhere in between 1.376V to 1.392V but no time to try yet. P95 small/large FFT stability is much less, near 1.32V load IMO. You can game or run anything at 1.29V idle without problems though since it's only core 3 which'll error if under max continuous load for over 3 hours at that voltage. 1.392V should also get 3.7G stable IMO, I'll test it soon. Temps will be a major problem though.
EDIT 13th Feb:
450x8=3600 1.376V/1.344V fully stable with P95 smallFFT (65/65/60/60 C)... unstable with SuperPrime/Linpack.
450x8=3600 1.392V/1.376V fully stable with P95 SF/SuperPrime/Linpack (high temps though)
3.74GHz unstable at 1.392 idle/1.376V load
Same all the way up to 1.452V idle.
Thus, the stable limit for this chip on air seems to be near 1.376-1.392V 36xxMHz.
Good move - if you want room in the case have a look at the Thermalright Ultima-90 I am using. Baby brother of the 120 extreme with good performance and a lot smaller footprint in the case.http://www.anandtech.com/casecooling...oc.aspx?i=3068 Stick a quality high CFM fan on it for best performance - 120 or 92mm. For air the 120 x is the best but this is pretty damn good!
i got a L737A721, package date 10/18/07. It failed prime after 2 hours at 9*400 1.46v. Stock was 1.26. Need to get this thing stable. I want at least 3.6. any ideas.
Yes I would say that...my Q6600 @ 3.6ghz 1.288 vcore hits 50c @ prime and I found that already abit high.
Has anyone come to a conclusion on the best batches to look for... so far I looked around a little in this thread ands saw that the lower 737's seem good, how about some other good batches... what about 727?
I saw some week 40A / 45A /34B were pretty good, 3.6ghz with 1.30-1.33v. But u cant be sure before u test it and confirm it. I think the theory about the L737B with low number is true, altho mine was on the limiet, with 242 at the end....I took the bet and it was a beast of a cpu:up:
n00b question, so dont flame me
Intel Quad Core Q6600 ES (Engineering Sample) with Unlocked Multiplier
Is there such a thing and is it worth buying?
And if so what would be a max price tag?
http://i237.photobucket.com/albums/f...ger/fbb7_1.jpg
Some one will probably delete your post. So delete it first before you do get flamed. It is illegal to sell ES chips. So there's no point asking anyone around here for a price.
I'm going to try a G0 this weekend. It's a L739A596 and this batch seems pretty good from KTE's reply on this page. I couldn't find any more info on this batch so I hope it's good.
I wonder if my Seasonic can hold a quad. Should I get a new PSU? :D
Easy... if you keep the 3870 at low MHz. ;) It's the cards that really draw massive power even idling when oc'd a little.
I ran a 330W Seasonic S12 II with the Q6600 G0 I had :D
With a low end card though (HD 2600 XT) at stock (70W DC full card draw). Mainly because my 550W was taken up elsewhere but max load I had on mine was still sub 330W DC. Only at around 4GHz 1.46V Prime95 smallFFT (unstable), it reached 330W DC draw from the PSU which was 392W AC.
I am currently small FFT testing 1.376V idle/1.344V load, +0.05 vFSB, +0.05V vMCH, 450x8 (3600MHz) now and heat=power so as heat will rise, so will the power draw, and it's currently after 1hr 63/63/60/60C 22C ambient, one total system fan (Zalman 9700), topping out at 218W DC power draw. PSU is an Antec Earthwatts 430W (same internals as the Seasonic you have). Still 210W from the rated max.
If you go on water, the power draw will be less as the current leakage and electron resistence is far lower so less voltage will be needed for the same MHz. That's why water oc is not comparable to air, same as subzero isn't to water and so o.
Water is not an option now, I'll stick with air cooling. It's cold where I live, I have like -3C during day time so if I open the window, turn off the heat I get 5-6 degrees C ambient. :D I managed a suicide shot with my E6750 at 4400Mhz with this temps on air, not Pi 1MBstable, 3932Mhz actually stable :D
I'm keeping low Mhz for 24/7, but for benching at 985/1350 with my 3870 and an overclocked quad at 3800/4000Mhz, might be a problem I think. :(
For a 430W, I don't think it will unless you pump insane volts into it. ;)
It seems you meant 3932MHz instead of 4932MHz there. :p:
Oh, typo ,edited :D
If your G0 needs 1.37v for 4Ghz, and I'll get the same batch (L739A) as you, you're saying that 430W should be enough for benching? Taking in consideration also that my 3870 will be overclocked.
Wait right there... let me bench 2k6 at 4GHz and see what power/volts it requires.
Thanks, I apreciate.
Well, to tell you the truth as of now, chip = degraded. :(
Did not boot 4GHz at even 1.45V now! That's so bad compared to before, previously I benched Pi 32M at 4.050GHz with 1.392V idle many times, at least 12/13 runs of it and other stress benches.
Anway, now, to small bench 4.00GHz it needs (i.e. Pi):
http://img144.imageshack.us/img144/8...4ghzwo3.th.jpg
But this for more stressful benches (i.e. 2k6):
http://img521.imageshack.us/img521/8...4ghzrp4.th.jpg
Max watts drawn with the last ss setup during 2k6 were 292W DC during Deep Freeze. That's with a Sapphire HD 2600 XT on P35 (800/700 @ 843/963 stock v). Will your GPU draw 200W DC under 2k6 load?
That's what it needs to draw to top 430W DC. ;)
I don't think my GPU will draw 200W DC under load. :D
I was reading here, there is a graph at the bottom with power consumption compared.
The test system was made up of a quad at 3.5Ghz, Asus Blitz Extreme, 4GB DDR3, HDD, DVD-RW and 5 Yate Loons. With a 3870x2 max power draw of the system was 418, with a 3870 was 309 in COH 1600x1200 4xAA.
I think I can bench just fine with this PSU. Thanks again for the info. :)
True that. :)
guys is it safe? my cpu now runs at 3,6 ghz vcore 1.58 (vid 1.3250) with temps as full load 70/74 °C? it's not 27/7 but its open 3 max 10 hours x day
Woah man! 1.57 is way to much! You can kill your chip with those volts faster - I'd say within 3-5 months or less.
Just put the voltage on "auto" - that way the CPU will take the voltage it needs instead of being flooded by power and dying faster.
Personally I need to boot with 1.6v to get to 4Ghz for 3dmark06 to run, but thats only for benching - and that's it.
BTW, those temps are kinda iffy. What are you using to monitor them?
I have Q6600 3.6Ghz @ 1.475V (Vid 1.3150) full load in prime 95 i get 70C all cores yes thats very hot but games i wont see north of 50C and i dont run prime 95 for fun so if you same as me in that regards you will be fine but 1.58V side of things im little sceptical cant do any lower?... perhaps fork out to buy a new one hoping for better VID and flog old one on ebay shouldnt cost much difference!
:up:
After a little tweaking on air. Not bad I'd say. It seems it has potential. I needed 1.5625v for that. I can bench on air @4050 with 1.5v approximately.
And I need to prepare my w/c asap. LN2 can wait for now.. :)
http://img222.imageshack.us/img222/9997/33875541ey9.jpg
May be useful for reference - Core duo/quad temperature guide http://www.tomshardware.co.uk/forum/...perature-guide
After a few months of a) losing two mobo's (one 680i that I destroyed trying to modify the NB & SB cooling, flimsy PCB or maybe my heavy hand, but my old DFI Ultra-d I put through hell and it kept on ticking & still is in a buddy's rig) and one P5K Premium which was RMAed; b) going through 3 2x1g OCZ kits of memory, yes 6gigs of it, 4g the first time and 2g the second, both times when I changed O/C's in the O/C save thingy in the bios; I have come up with a decent overclock I'm happy with.
I have a Q6600 G0 Stepping - L724A760 vid=1.2750
It will go to 3.2g before I have to raise the Vcore.
3.4g @ 1.3375 Vcore
3.6g @ 1.4125 Vcore
3.7g @ 1.4875 Vcore
3.75 @ 1.5125 Vcore This is where I stopped. I have to pour on the voltage to get it clock faster. But she will do 4.0 but is not stable.
Pics are worth a a thousand words or so I heard. This is with a 21-22c room temp.
Idle temps
http://i107.photobucket.com/albums/m...intn/PCWiz.jpg
Small FFT's temps run for 10 minutes
http://i107.photobucket.com/albums/m...empsresize.jpg
As you can see there is no idle to load Vcore drop.
Since this is a gaming rig here's some 3DMark stuff
Notice how poor Vista Ultimate 64-bit does compared to XP Pro 32-bit
Still I use Vista to game with mostly cause it gives my games more graphics options. Still I can't overclock the 8800GTX as much in Vista as I can in XP.
http://i107.photobucket.com/albums/m...tn/3DMarks.jpg
I'm cooling the rig with a real redneck water loop. You know like back in the old days, with a 5 gallon aquarium and a 20ft of head pond pump. BTW, I like the noise, the only quiet rig I've ever built was the DFI with a Opty 146 and a Zalman flower. I had a hard time sleeping with that rig, I'm use to the white noise, or whatever color noise it is.
All my voltages are set to their lowest settings in the bios except for Vcore and Vdimm which is 2.15v.
In the coming weeks I'm going to play with memset and see if I can tighten the timings a bit, but I don't think I'll see much performance from it with a gaming rig, I might be wrong but I think that mhz beats timings in gaming.
If any one knows how I can lower the Vcore with some of the bios settings in this P5K Premium, give out a shout.
Thnx m8. It is a L733B with vid 1.225..Exceptional vcore for 3.6GHz you got there.. I need 1.35 in order to be prime stable@ this frequency though I can boot and work with 1.26 but of course it's not prime stable..
I may need lower vcore even for that "max" cpu-z on air. I realized that many times b4 with lower clocks.
You can't be sure on air sometimes the cpu gets hot and you can't make safe assumptions about the actual vcore needed.
As I said though I need to fix my W/C asap in order to see how further can I go.
IF my cpu is prime stable @4GHz with 1.5v as it is now for benching, I may have a shot for 24/7 use with my new W/C loop..
Right now of course with air it is out of the question I won't even bother..
Someone near me is selling a used go with batch number L728A838 , anyone have any guess about this batch to oc potential?
Many noted it, me too. My previous L734B chip did 3.6GHz, at 1.43vcore and 55°C small FFT on water. My new L740B does 3.6GHz at 1.33v, and 60°C :confused: I lapped it a first time, 0°C change, gave it a second tour lap: -5°C :ROTF:
Hi, I noted you rig, really nice watercooling rig you have on the XS gallery
What are your temperatures with setup on your sig?
My Q6600 G0 is at 3.8GHz (8x475) with 1.432v on my P5K premium (66°C on small FFT :confused: ). I'll post you some screens once its fully benched
Thanks man :)
I'm using my Q6600 at 475x8, 1.39v. Temps are about 50-56ºC loaded, ambients change a lot here (tropical country :D )
Rbs.
:wave:
EDIT:
Here's a Screenshot with 18ºC ambients:
4000Mhz prime95 smallFFTs:
http://img254.imageshack.us/img254/6...737b2hrvh7.jpg
:wave:
L723B509....complete volt pig. Does 3.6 at 1.35v, the next 225mhz require no less than 1.53v.
As posted on the other thread, mine's a L733B batch, VID at 1.25v. Easily does 3.6Ghz with just 1.45v but requires quite lotsa juice to run at 4.25Ghz. Here's a screenie at 4.2Ghz. Mobo used was an old skool Asus commando. This is a gaming rig which runs approx 7hrs daily. Cascade cooled, able to hold at temps at -61C load and -57C Full load.
http://i191.photobucket.com/albums/z...600_4_2ghz.jpg