> There are so many factors at work in a good stable over clocked system, that it's impossible to give a perfect list of settings.
Of course, you're entirely right. But I'm hoping for a good guide line. ;-)
My quad Q6600 G0 runs on water cooling at 3.33 GHz (9 x 366 MHz) and default cpu voltage. I'm a little bit afraid of having higher voltage than default because of the heat dissipation.
> Remember to keep your CPU temperatures at a max of about 65c or a little less if possible.
?? I do remind that Q6600 specifications said about 71°C?! At time I'm running at about 58...60°C depending of room temperature.
> You don't mention the specification of your RAM, or what speed it's running at.
All Mushkin XP specifications I have are:
- latencies 5-5-5-15
- 1066 MHz
- RAM voltage at 2.1V
And at those specs they are running at time excepted frequency being a little bit higher because of the FSB frequency so about 1120 MHz.
You do mean I should try to set latencies manually to 4-4-4-12 according to actual overclocking settings?
![[gb]](/mwf/v12/flags/gb.png "United Kingdom")
You will need move Vcore to go higher... There's no way to avoid it. As an indication, I ran a Q6600 G0 at 1.475v for 8 months without even a hint of a problem, so as long as you keep an eye on your temperatures, going to 1.45v certainly won't cause any other problems. Heat is always the issue in overclocking, so always have coretemp running in the background while changing the settings to avoid over heating anything.
Try going to 1.4v Vcore and lowering the RAM divider to 1:1, this eliminates RAM as an issue while you push the FSB. Then raise the FSB gradually. I suspect you will get to around 380/390 at that voltage, but your own results may vary. Once you have the CPU stable, you can adjust the RAM ratio to suit it.
Have you set your DDR voltage to 2.1v or is that the specification you have? Default DDR2 voltage is 1.8v, and unless you change it in the BIOS, thats what the motherboard supplies. If you haven't changed it yet, your RAM will struggle to keep up. If you are at 2.1v already, it usually doesn't do any harm to raise it a little when trying for lower latencies, so go to 2.2v.
I suggest using Memset to try running at lower latencies first, if it proves stable you can transfer the settings into the BIOS.
The 65c I recommended is a safe day to day working temperature.
Try going to 1.4v Vcore and lowering the RAM divider to 1:1, this eliminates RAM as an issue while you push the FSB. Then raise the FSB gradually. I suspect you will get to around 380/390 at that voltage, but your own results may vary. Once you have the CPU stable, you can adjust the RAM ratio to suit it.
Have you set your DDR voltage to 2.1v or is that the specification you have? Default DDR2 voltage is 1.8v, and unless you change it in the BIOS, thats what the motherboard supplies. If you haven't changed it yet, your RAM will struggle to keep up. If you are at 2.1v already, it usually doesn't do any harm to raise it a little when trying for lower latencies, so go to 2.2v.
I suggest using Memset to try running at lower latencies first, if it proves stable you can transfer the settings into the BIOS.
The 65c I recommended is a safe day to day working temperature.
Phil, thank you until here!
Okay, but just as last try. Before I'd wish to clear up all other stuff...
What is the correct naming of RAM divider in BIOS?
So returning from ratio 1:1 to an individual one again?
Set individually already. Ok, here is what I have set at time:
> You will need move Vcore to go higher... There's no way to avoid it.
Okay, but just as last try. Before I'd wish to clear up all other stuff...
> Try going to 1.4v Vcore and lowering the RAM divider to 1:1
What is the correct naming of RAM divider in BIOS?
> Once you have the CPU stable, you can adjust the RAM ratio to suit it.
So returning from ratio 1:1 to an individual one again?
> Have you set your DDR voltage to 2.1v or is that the specification you have?
Set individually already. Ok, here is what I have set at time:
Your RAM is doing great at the moment, the BIOS has adjusted the ratio to get the RAM frequency as close as it can to the SPD figure.
This is fine if you want to stop there, but it's not good for over clocking more because your RAM is already 4% over clocked. I'm sure it will get more, but the problem you have now is that any increase in FSB will push up the RAM speed, probably causing it to blue screen your computer.
Two things to do, 1st go back into the BIOS and find the system memory multiplier on the MIT page. Set that to 2:0. This has the effect of setting your RAM to work at the speed of the FSB, remember it's DDR2, so for an FSB of 380, the RAM will run at 760mHz. This is well below it's design speed, and will allow you to try anything with the CPU speed and know that the memory is not causing crashes. Later you will tune the RAM to match the over clocked FSB.
Then set your Vcore to 1.425v, add 0.15v to the FSB and 0.10v to the Gmch.
You should then be able to raise the FSB to somewhere between 370 and 390. I suggest doing this from windows with Easytune. Check temps carefully under load each time you raise the FSB, if the temp exceeds 70c, stop and go back 5 on the FSB.
This is fine if you want to stop there, but it's not good for over clocking more because your RAM is already 4% over clocked. I'm sure it will get more, but the problem you have now is that any increase in FSB will push up the RAM speed, probably causing it to blue screen your computer.
Two things to do, 1st go back into the BIOS and find the system memory multiplier on the MIT page. Set that to 2:0. This has the effect of setting your RAM to work at the speed of the FSB, remember it's DDR2, so for an FSB of 380, the RAM will run at 760mHz. This is well below it's design speed, and will allow you to try anything with the CPU speed and know that the memory is not causing crashes. Later you will tune the RAM to match the over clocked FSB.
Then set your Vcore to 1.425v, add 0.15v to the FSB and 0.10v to the Gmch.
You should then be able to raise the FSB to somewhere between 370 and 390. I suggest doing this from windows with Easytune. Check temps carefully under load each time you raise the FSB, if the temp exceeds 70c, stop and go back 5 on the FSB.
> Try going to 1.4v Vcore and lowering the RAM divider to 1:1
What is the correct naming of RAM divider in BIOS?
> Your RAM is doing great at the moment,
... through all parameters? :-o
>... the BIOS has adjusted the ratio to get the RAM frequency as close as it can to the SPD figure.
No, I did set it through MemSet just trying out so only set via Windows start up not through BIOS.
> Two things to do, 1st go back into the BIOS and find the system memory multiplier on the MIT page.
We should have the same BIOS menu. Please, what's the naming of this multiplier?
> Then set your Vcore to 1.425v, add 0.15v to the FSB and 0.10v to the Gmch.
What is "Gmch"?
I think it will take me some time but my understanding was getting better with your patient-friendly support! :-)
It's called the System Memory Multiplier. By setting that to 2.0 you get 1:1 ratio for RAM to FSB.
Yes, those RAM settings are ok. It may be possible to get lower timings, but there is no point doing that until you have a final FSB speed.
Gmch is the Northbridge voltage. A small boost there helps keep things stable.
Yes, those RAM settings are ok. It may be possible to get lower timings, but there is no point doing that until you have a final FSB speed.
Gmch is the Northbridge voltage. A small boost there helps keep things stable.
... bud, thank you so much! :-)
![[ca]](/mwf/v12/flags/ca.png "Canada")
Looking that that DDR2-533, my DDR2-800 has better timing than that factory fresh.
Not helpful. Better to declare the specific settings in BIOS... :-/
Phil:
This is the first I've heard of Memset. I downloaded v. 3.5. Can I used it with X38 board to automatically tweak my Memory settings, which may be the bottleneck stopping me from going over 370 FSB?
This is the first I've heard of Memset. I downloaded v. 3.5. Can I used it with X38 board to automatically tweak my Memory settings, which may be the bottleneck stopping me from going over 370 FSB?
It works fine with the X38 board. Making the most of it can be tricky as lots of the settings available will be pure gibberish to all but about 5 people on the planet.
Memory is only ever a bottle neck to over clocking when it is near it's limits. To find out if thats the case, try lowering the divider to 1:1 (confusingly called 2.0 under system memory multiplier) and seeing how far the FSB is happy to go. Do remember that the Vcore required ramps up quite dramatically on quads as you push them.
Memory is only ever a bottle neck to over clocking when it is near it's limits. To find out if thats the case, try lowering the divider to 1:1 (confusingly called 2.0 under system memory multiplier) and seeing how far the FSB is happy to go. Do remember that the Vcore required ramps up quite dramatically on quads as you push them.
>Making the most of it can be tricky as lots of the settings available will be pure gibberish to all but about 5 people on the planet.
Hi Phil,
I think it is 6 actually lol :)
Regards
Phil,
What do you mean by the divider. I have SPD (System Memory Multiplier) at 2.66D, which shows a Memory Frequency of 667/984 for my OCZ 1150 MHz DDR2 memory. There is a note in the BIOS: "(G)MCH strapping for x.xxA = 266 MHz; x.xxB = 333 MHz; x.xxC = 200 MHz; x.xxD = 400 MHz.
So I have no idea what my "divider" is or how to set it.
Note that in Memset I see "fsb/dram": 3:4
What do you mean by the divider. I have SPD (System Memory Multiplier) at 2.66D, which shows a Memory Frequency of 667/984 for my OCZ 1150 MHz DDR2 memory. There is a note in the BIOS: "(G)MCH strapping for x.xxA = 266 MHz; x.xxB = 333 MHz; x.xxC = 200 MHz; x.xxD = 400 MHz.
So I have no idea what my "divider" is or how to set it.
Note that in Memset I see "fsb/dram": 3:4
2.66D means you RAM is set to run at 2.66 times your FSB speed. So 2.66x370 = 984.
Thats the divider, or system memory multiplier which basically sets the ratio of FSB to RAM speed. So ((4x370)/3) x2 (for the DDR2 bit) is roughly what speed your RAM is running at, thats the 3:4 ratio.
Basically, your RAM is well within it's design spec, so it shouldn't be the cause of any over clocking problems.
I don't remember what options are available in systems memory multiplier for your motherboard, but you can gather from the above that 3.00 would equate to 1110 mHz at an FSB of 370, still within spec, and should be a noticeable performance improvement over 984mHz. To hit the mark specified by Ocz you could run your FSB at 383 and the multiplier at 3.0, for a RAM speed of 1149.
The A,B,C,D refers to the approximate FSB you will be using, and this goes towards setting the Trd I believe. So you pick the one thats closest to your chosen FSB, so 3.00D would be correct.
Thats the divider, or system memory multiplier which basically sets the ratio of FSB to RAM speed. So ((4x370)/3) x2 (for the DDR2 bit) is roughly what speed your RAM is running at, thats the 3:4 ratio.
Basically, your RAM is well within it's design spec, so it shouldn't be the cause of any over clocking problems.
I don't remember what options are available in systems memory multiplier for your motherboard, but you can gather from the above that 3.00 would equate to 1110 mHz at an FSB of 370, still within spec, and should be a noticeable performance improvement over 984mHz. To hit the mark specified by Ocz you could run your FSB at 383 and the multiplier at 3.0, for a RAM speed of 1149.
The A,B,C,D refers to the approximate FSB you will be using, and this goes towards setting the Trd I believe. So you pick the one thats closest to your chosen FSB, so 3.00D would be correct.
![[eu]](/mwf/v12/flags/eu.png "Europe")
hahaha yes imagine Rybka on it ..... watch Rybka go bananas :)
probably declares a draw after 1.d4 :)
probably declares a draw after 1.d4 :)
![[si]](/mwf/v12/flags/si.png "Slovenia")
A question for all you folks, I overclocked my P4 to 2,9ghz and the sound stops working, why?!(the comp is 100% stable and the temps are good)
ps: I still havent updated my comp and am dying with this junk.. :(
ps: I still havent updated my comp and am dying with this junk.. :(
The most likely cause is some sort of PCI frequency issue with your sound card. I have heard of that causing problems before. Check what settings your motherboard has for PCI frequency and if it is on auto, maybe try lowering it a little manually.
![[us]](/mwf/v12/flags/us.png "United States")
I'm looking for some suggestions on the best software to overclock from Vista 64. I have an HP a6460t with a Q9300 and 4 gb ram and like most OEM computers, I am not allowed to overclock from the Bios. I'm just wanting to raise it from 2.5 to 3 ghz which is minor and shouldn't require any new type of cooling system.
![[fi]](/mwf/v12/flags/fi.png "Finland")
RMClock is the only one I ever found (you have to disable driver signature enforcement to get it to work).
Not that I've been able to overclock my laptop with it, but others have used it successfully.
Not that I've been able to overclock my laptop with it, but others have used it successfully.
Actually I doubt you will be able to overclock that much with standard cooling. The Intel standard coolers will just about cope with a 100% load at stock speeds, in hot weather they even struggle with that. The volume of airflow through your case is also critical to the results you will get. If you have an off the shelf computer it's unlikely to have particularly good airflow.
Software over clocking doesn't allow for increasing voltages to the CPU or RAM. This means that at the first sign of instability you have no choice but to back off the FSB.
Basically your results will depend entirely on the CPU. Like all CPUs, some Q9300's will do great things at stock volts, others need increases for quite small FSB steps. There is no way to tell which you have without trying it.
Software over clocking doesn't allow for increasing voltages to the CPU or RAM. This means that at the first sign of instability you have no choice but to back off the FSB.
Basically your results will depend entirely on the CPU. Like all CPUs, some Q9300's will do great things at stock volts, others need increases for quite small FSB steps. There is no way to tell which you have without trying it.
Has anyone experimented with ClockGen? I do recall reading an article last year where they were able to overclock an Q9300 to 3 ghz with no voltage increase---albeit anything beyond that did require one ( I believe they reached 3.6).
What are my options if no software will get the job done? Would it just be a matter of a new mobo and possibly better cooling to reach 3-3.5 ghz?
What are my options if no software will get the job done? Would it just be a matter of a new mobo and possibly better cooling to reach 3-3.5 ghz?
I used ClockGen with my Q6600 to go from 2.4 to 2.8 GHz without any trouble at all. Temps went from mid 70s to high 70s under full load. I didn't try to go any higher, though.
![[in]](/mwf/v12/flags/in.png "India")
http://www.go2convert.com/processed/1245594294683.jpeg
how to oc this can any one explain me thanks in advance
how to oc this can any one explain me thanks in advance
You could also try ClockGen, which worked fine with my Q6600 and Vista64.
http://files.extremeoverclocking.com/file.php?f=189
http://files.extremeoverclocking.com/file.php?f=189
![[de]](/mwf/v12/flags/de.png "Germany")
You could try SetFSB: http://www13.plala.or.jp/setfsb/
I think, that's the best tool for overclocking by software atm.
Regards,
Lukas
I think, that's the best tool for overclocking by software atm.
Regards,
Lukas
Lukas,
thanks for the reply. I am having an issue. My desktop doesn't have internet access. So, what I am doing is downloading SETFSB into my laptop and extracting it there and then transferring it via my USB stick to my desktop, but when I try to open it I am getting the message: #Error 38. Any help would be appreciated.
I'm wondering if the issue is the PLL. Mine is Asus IPIBL-LB (Benicia). The closest one they have is Asus IPIBL-LA (Berkeley). Do I maybe need to wait for an update?
thanks for the reply. I am having an issue. My desktop doesn't have internet access. So, what I am doing is downloading SETFSB into my laptop and extracting it there and then transferring it via my USB stick to my desktop, but when I try to open it I am getting the message: #Error 38. Any help would be appreciated.
I'm wondering if the issue is the PLL. Mine is Asus IPIBL-LB (Benicia). The closest one they have is Asus IPIBL-LA (Berkeley). Do I maybe need to wait for an update?
Update: finally I was successful in transferring SETFSB into my desktop without the error message. However, it just isn't working. Out of 5 attempts, it has frozen the computer 4 times and the one time it didn't freeze the computer, everything was superslow. On one of the attempts I raised the FSB from 333 to 344---a very small increase and yet it still froze. I'm really wanting to increase it to 400. Is it possible that the issue is the PLL as I indicated in my previous message?
Yes - it can either be the PLL or the mainboard is locked to prevent overclocking. E.g. all Supermicro boards are locked.
Unfortunately I'm starting to suspect that it it locked. ;( Why would manufacturers like HP lock their PC's? I forgot to mention that the one time that it didn't freeze but was extremely slow that there was a constant clicking sound.
I am now debating whether I should get a new motherboard for my HP as that seems to be my only route to overclock. I'm leaning towards the Gigabyte GA-EP45-UD3P.
I am now debating whether I should get a new motherboard for my HP as that seems to be my only route to overclock. I'm leaning towards the Gigabyte GA-EP45-UD3P.
> Why would manufacturers like HP lock their PC's?
1. Overclocking voids the warranty.
2. It's damn hard to detect.
> I'm leaning towards the Gigabyte GA-EP45-UD3P.
Great board, I own it. Also the EP45-UD3R is a decent choice for less money and performs the same overclocking wise to the UD3P.
What has been your overclocking experience with this board? I have a Q9300 and I would like to reach at least 3.2 ghz, though 3.5 would thrill me.
I have got 500FSB stable with only 1.34 MCH and VTT on my Q9650 chip. The main thing is going to be what FSB you can hit, since this board easily handles 500 FSB that means you could potentially overclock all the way to 3.75ghz(7.5x500) with excellent cooling(probably water at that clock speed). If you have a good aftermarket cooler I would expect 3.5ghz to be within range, on stock air you might be hard pressed for 3.2ghz.
There's no doubt that overclocking stresses the components of a system. Intelligently done, it might not make a significant difference, but be assured that if it was possible, it wouldn't always be done intelligently. Obviously, HP is not charging a premium for this capability, and therefor has a strong incentive to prevent failures which could result in additional warranty work and a tarnishing of HP's reputation for building reliable systems. HP does sell overclocked/overclockable systems under their Voodoo brand, but you pay a large premium for these machines, and the focus is as much on graphics performance, case design, and paint job, as on processor speed.
With overclocking, especially for chess engine usage, its best to build your own systems.
With overclocking, especially for chess engine usage, its best to build your own systems.
A new motherboard is a good idea - but you could encounter more difficulties as the PSU might not be suitable for overclocking. It might even be incompatible with your new board. I guess it's best to sell that HP computer and build a new one.
Regards,
Lukas
Regards,
Lukas
I understand that no two chips are the same and that mine may not overclock as well as yours or vice versa but I don't see why my processor wouldn't be compatible with that motherboard. Please explain.
He said "PSU" not "CPU". He was talking about the power supply.
Ah, right, I misread it. Yea, my powersupply is rated at a low 300 watts, however, I don't game and would never put in a high wattage video card. I should be fine as long as it is compatible.
I am considering selling it---it's just hard finding a buyer.
I am considering selling it---it's just hard finding a buyer.
> 300 watts
That is very low considering your wanting to overclock the Q9300. How many Media Drives/SATA Devices are installed?
Yea it is low; I am going to try to sell it. It has 1 hard drive and 2 dvd drives. It's an energy star desktop and hence the low power supply.
Are Set FSB and Clockgen better tools to use than the laborious and not particularly successful trial-and-error method I used with by Q6600 system in 12/07?
I was able to get it up to 9 X 380 MHz FSB = 3.42 GHz clock speed.
I was able to get it up to 9 X 380 MHz FSB = 3.42 GHz clock speed.
![[es]](/mwf/v12/flags/es.png "Spain")
Hi
I'm sorry if this has been asked before but I can't find it.
I have a Core i7 720QM. I read you can't overclock it and that hyperthreading lowers rybka's power by around 15%.
Since there are no hyperthreading options in my bios I was wondering...
If within Rybka parameters I set maximum cores to 4... will Rybka use 4 cores - 4 threads (hyperthreading OFF)? or will it just take 2 cores - 4 threads (hyperthreading ON).
Thank you
I'm sorry if this has been asked before but I can't find it.
I have a Core i7 720QM. I read you can't overclock it and that hyperthreading lowers rybka's power by around 15%.
Since there are no hyperthreading options in my bios I was wondering...
If within Rybka parameters I set maximum cores to 4... will Rybka use 4 cores - 4 threads (hyperthreading OFF)? or will it just take 2 cores - 4 threads (hyperthreading ON).
Thank you
![[nl]](/mwf/v12/flags/nl.png "Netherlands")
Rybka does not 'see' the difference between real and HT cores, so when selecting 4 cores both real and HT cores will be used --> so no gain in performance
I don't think you can overclock the i7 720QM because it basically overclocks itself. I have one in my Alienware M15x and I have to admit at first I laughed at the thought of a 1.6Ghz quad core but the thing goes toe to toe with my overclocked (2.95Ghz) Q6600 Quad Core I use in my main gaming desktop.
>If within Rybka parameters I set maximum cores to 4... will Rybka use 4 cores - 4 threads (hyperthreading OFF)? or will it just take 2 cores - 4 threads (hyperthreading ON).
This depends on your operating system. XP and Vista will randomly choose real and virtual cores. The result is a really low performance. If you use Linux or Windows 7, 4 tasks are good as these operating systems know about hyperthreading - they try to use physical cores first.
![[do]](/mwf/v12/flags/do.png "Dominican Republic")
so windows 7 64bit is better than vista 64bit for chess purpose in a quad system?
Yes
![[cn]](/mwf/v12/flags/cn.png "China")
well, guys, i got a core duo 8100 2.0Ghz on my lappy, i wanna ask whether or not i can overclock this cpu on my lappy. if i can, wat r the procedures? thnx in advance.
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