CPU Overclock List & Discussion Thread

[asingh]

re: CPU Overclock List & Discussion Thread

^^
The aim of any OC (not idiotic benching) should be:

1. Highest possible speed.
2. Lowest possible temperature.
3. Stable system after various stress tests.

Would advice you to use the Intel Burn Test (with RealTemp/CoreTemp for temperatures) to truly test the integrity of your OC. Also once you hit the speed you desire, try to keep lowering the vCore till the system is unstable. Remember it has to be lowest vCore+highest speed.

High heat and increase vCore kill the CPU, with the latter coming first....!

Best.

 

[topgear]

re: CPU Overclock List & Discussion Thread

You should better keep the cpu temp under 70C to be safe. Try lowering your CPU vcore manually and keep it reducing untill you find the most stable vcore @ 3.7 Ghz.

Download OCCT and Run the CPU load test for at-least an hour and this will give you all the infos you need and post the results in here. Keep a close eye on the temps while running OCCT with 3.7 GHz speed using Real Temp.

 

[amogh]

re: CPU Overclock List & Discussion Thread

I have a phenom ii x2 550be processor and gigabyte GA-MA785GM-US2H board and 2gb ddr2 ram
i have a query when i go into my BIOS to overclock my cpu i only see multiplier maximum till 15.5 but in the thread above in sum screen shots i have seen multiplier as 19 etc.. so tell me how can i overclock. My CPU BUS speed is 200MHz so wat should i do please help me i am new to overclocking and tell me till wat speed i can overclock i am using stock cooler .
Thanks in advance

 

[ithehappy]

re: CPU Overclock List & Discussion Thread

You should better keep the cpu temp under 70C to be safe. Try lowering your CPU vcore manually and keep it reducing untill you find the most stable vcore @ 3.7 Ghz.

Download OCCT and Run the CPU load test for at-least an hour and this will give you all the infos you need and post the results in here. Keep a close eye on the temps while running OCCT with 3.7 GHz speed using Real Temp.

Thanks, I downloaded OCCT and Ran it for just 10 minutes as I had sort time, will run for an hour laetr. @3.7 GHz the max temp reached 78-77-76-72 (by Real temp) when in OCCT it was set to- Large Data Set and High priority.
So the max temps are not under 70°C, so I think it's not safe, right? Can you tell me the reason, is it my cooler?
and one more thing, I changed the VCore to 1.1V in my BIOS settings before OC'ing, but then when I press the power button the PC is not turning on. I had to re-open the Processor and then re inserted again. So it's kinda weird. Can you tell me what to do to turn my PC on without opening the Processor?

Thanks and Regards.

 

[topgear]

re: CPU Overclock List & Discussion Thread

The vcore is shown as 1.2V is when your cpu was in idle state with just 0.7% load. So it's clearly not the load vcore which I've asked for.

When you are setting vcore values in bios it's for cpu load voltage not idle.

You set you cpu load voltage way too low and thats why your PC refused to boot but in such case you usually have to just clear the CMOS setting by jumper ( read mobo manual ) or removing and reinserting the big cmos battery on mobo and some mobos has dedicated switch to clear incorrect CMOS setting.

While running OCCT/Prime 95 keep cpu-z/real temp open to know about the load voltage while your cpu is being stressed by those app fully and that's how you will get know about the actual cpu load voltage.

BTW, what was the vcore in bios @ 3.7 Ghz before you changed it ?

Disable all power saving option in bios and reduce the vcore in small stages ( say - 0.001 or - 0.025 ) not by huge margins until you find the minimum stable vcore for your cpu.

 

[asingh]

re: CPU Overclock List & Discussion Thread

Thanks, I downloaded OCCT and Ran it for just 10 minutes as I had sort time, will run for an hour laetr. @3.7 GHz the max temp reached 78-77-76-72 (by Real temp) when in OCCT it was set to- Large Data Set and High priority.
So the max temps are not under 70°C, so I think it's not safe, right? Can you tell me the reason, is it my cooler?
and one more thing, I changed the VCore to 1.1V in my BIOS settings before OC'ing, but then when I press the power button the PC is not turning on. I had to re-open the Processor and then re inserted again. So it's kinda weird. Can you tell me what to do to turn my PC on without opening the Processor?

Thanks and Regards.

You know what is going to happen one day to you. You will weep when you break your system yourself. What the heck are you doing..? Since the day you got your system you have been doing stuff so haphazardly. Sorry to say this -- but try to be patient. Please.

Do the following generic things:

1. Read up about OC. This and this might help you.
2. When your system locks up due to incorrect OC just reset the CMOS. Am sure your motherboard has a button on the back panel which can be used for reset.
3. Disable all power saving features from the BIOS.
4. Change Windows power mode to performance.
5. Try OC changes in small increments. Be careful here.
6. Use RealTEMP+Prime95 for initial stability test later on use OCCT+IBT. The last two are really harsh -- so try these when RealTemp Passes.
7. Post RealTEMP logs of temperatures if in doubt.

 

[sjoardar]

re: CPU Overclock List & Discussion Thread

You know what is going to happen one day to you. You will weep when you break your system yourself. What the heck are you doing..? Since the day you got your system you have been doing stuff so haphazardly. Sorry to say this -- but try to be patient. Please.

Do the following generic things:

1. Read up about OC. This and this might help you.
2. When your system locks up due to incorrect OC just reset the CMOS. Am sure your motherboard has a button on the back panel which can be used for reset.
3. Disable all power saving features from the BIOS.
4. Change Windows power mode to performance.
5. Try OC changes in small increments. Be careful here.
6. Use RealTEMP+Prime95 for initial stability test later on use OCCT+IBT. The last two are really harsh -- so try these when RealTemp Passes.
7. Post RealTEMP logs of temperatures if in doubt.

Loads of thanks to you, asingh, particularly for the two references. I will be working with those guidelines, but may seek advice from you if I am stuck. If you have any special tips for my CPU-mobo combo, I shall immensely appreciate your inputs. Thanks again!

 

[asingh]

re: CPU Overclock List & Discussion Thread

^^
Anytime. We are always here...!

 

[Cilus]

re: CPU Overclock List & Discussion Thread

Guys, now 3.6 GHz overclock is stable. Just done it using Overdrive and created profile. Only using them at the time of gaming. It is perfectly stable now as the temperature is low now. Know you guys are not gonna like OCeing
In full CPU load (using performance mode in Win 7, using Handbrake to encode a 15000 Kbps 1080P Mpeg2 to AVC format) max temp was 64 degree centigrade.
In Battle field Bad company 2 getting almost 15 FPS (now 65 to 68 fps) after CPU and small GPU (Core clock 20 MHz increase, Shader clock 20 MHz) Oceangoing with everything set to highest and 16X anisotropic filtering and 16X MSAA.

Now some more help regarding NB and Ram tweaking. I'm using 2 Kingston 2 GB 1333 MHz C9 modules. Could u guys guide me or provide some good link for Memory overclocking.

 

[ithehappy]

re: CPU Overclock List & Discussion Thread

The vcore is shown as 1.2V is when your cpu was in idle state with just 0.7% load. So it's clearly not the load vcore which I've asked for.

When you are setting vcore values in bios it's for cpu load voltage not idle.

You set you cpu load voltage way too low and thats why your PC refused to boot but in such case you usually have to just clear the CMOS setting by jumper ( read mobo manual ) or removing and reinserting the big cmos battery on mobo and some mobos has dedicated switch to clear incorrect CMOS setting.

While running OCCT/Prime 95 keep cpu-z/real temp open to know about the load voltage while your cpu is being stressed by those app fully and that's how you will get know about the actual cpu load voltage.

BTW, what was the vcore in bios @ 3.7 Ghz before you changed it ?

Disable all power saving option in bios and reduce the vcore in small stages ( say - 0.001 or - 0.025 ) not by huge margins until you find the minimum stable vcore for your cpu.

I re-checked BIOS settings and if I select 3.7 GHz then the CPU Voltage is - 'Auto' and QPI/DRAM Core Voltage is- 1.43750 V (in RED). So will there be any problem if I continue testing while the CPU Voltage is at 'Auto'? When previously I ran the load test @ 3.7 the Core Voltage was- 1.3 to 1.35V as I checked by CPU ID and I also stated the temperatures when I ran the stress test by Prime95+ Real Temp in my previous post.

You know what is going to happen one day to you. You will weep when you break your system yourself. What the heck are you doing..? Since the day you got your system you have been doing stuff so haphazardly. Sorry to say this -- but try to be patient. Please.

Do the following generic things:

1. Read up about OC. This and this might help you.
2. When your system locks up due to incorrect OC just reset the CMOS. Am sure your motherboard has a button on the back panel which can be used for reset.
3. Disable all power saving features from the BIOS.
4. Change Windows power mode to performance.
5. Try OC changes in small increments. Be careful here.
6. Use RealTEMP+Prime95 for initial stability test later on use OCCT+IBT. The last two are really harsh -- so try these when RealTemp Passes.
7. Post RealTEMP logs of temperatures if in doubt.

Thanks for your info. will give a look at those articles later. and I don't think I am doing anything haphazardly since the day I got my system, anyway I need to be patient regarding OC'ing. Thanks for saying that again.

 

[sukesh1090]

re: CPU Overclock List & Discussion Thread

guys i got a tool,asrock oc tuner for overclocking from my motherboard website.when i run this application i can overclock my processor,pci-e etc.,it will be overclocked untill the application is running.
so guys can i use this tool for oc whenever i want?
Is there any effect to the mobo and proccy if i oc and downclock it again and again?
and i don't have any option in bios for changing vcore.BTW my idle vcore is 1.024 and on load 1.184.

 

[topgear]

re: CPU Overclock List & Discussion Thread

^^never heard to that tool but if it gets the job done for you then you should use it though don't OC pci-e.

As long as you keep an eye on temps and don't let the cpu temp cross 68C you are good to go.

The vcore value you posted is just perfect - there's nothing wrong with it.

BTW, how much you have OCed your cpu using that app ?

I re-checked BIOS settings and if I select 3.7 GHz then the CPU Voltage is - 'Auto' and QPI/DRAM Core Voltage is- 1.43750 V (in RED). So will there be any problem if I continue testing while the CPU Voltage is at 'Auto'? When previously I ran the load test @ 3.7 the Core Voltage was- 1.3 to 1.35V as I checked by CPU ID and I also stated the temperatures when I ran the stress test by Prime95+ Real Temp in my previous post.

Thanks for your info. will give a look at those articles later. and I don't think I am doing anything haphazardly since the day I got my system, anyway I need to be patient regarding OC'ing. Thanks for saying that again.

you need to disable AI OC and manually OC your cpu to change vcore setting. Follow the links provided by asigh to manually oc your cpu.

1.43750V vcore is way too high - to hit 3.7 GHz you need to set vcore around 1.265v-1.3v - ( may be you need to decrease the multiplier a little bit too ) it's just for an example - you have to find the proper volt by using trial and error method - always keep an eye on the temp - keep it under 70c under load and you will be fine.

If you set a vcore say 1.3v in bios and cpu-z is showing you a vcore of 1.285V or some less value under 100% cpu load it's just an proper example of vdrop. Vdrop is when your CPU voltage drops down than the set value in bios and it's normal.

 

[amogh]

re: CPU Overclock List & Discussion Thread

I have a phenom ii x2 550be processor and gigabyte GA-MA785GM-US2H board and 2gb ddr2 ram
i have a query when i go into my BIOS to overclock my cpu i only see multiplier maximum till 15.5 but in the thread above in sum screen shots i have seen multiplier as 19 etc.. so tell me how can i overclock. My CPU BUS speed is 200MHz so wat should i do please help me i am new to overclocking and tell me till wat speed i can overclock i am using stock cooler .
Thanks in advance

 

[topgear]

re: CPU Overclock List & Discussion Thread

550BE can be oced using two ways -

1. by increasing the multiplier
2. by increasing the FSB/CPU Bus Speed

When Ocing you should keep the cpu temp in check and don't let it cross over 65C.

With increased cpu speed your cpu my need additional voltage or you may have to manually tune the cpu voltage while ocing.

stock cooler really sucks when you OC - so if you want to hit some decent speed get some decent cooler first like CM Hyper 212+ at-least.

Read all the posts psted in here, read your mobo manuall carefully and get a decent cpu cooler first.

 

[vishalg]

re: CPU Overclock List & Discussion Thread

i am new at ocing so plz help me out on this guys

first my config
amd phenom II x4 955 be
asus m4a87td evo
corsair vs2gb1333d3
corsair vx550w

i want to mild oc my cpu from 3.2 to 3.4 ghz

now my question is how should i go about it

in th bios there is any option CPU level Up which has following options
auto, 965(3.4ghz) and 3.6ghz
will selecting the 965 option automatically oc my 955 to 965 clk speed??

secondly about OC Tuner Utility
should i enable the automatic ocing with it
as it says it will also oc the ram and since i am using a value series corsair maybe its not such a good idea

lastly what are CPU load line and cpu/NB loadline calibration options
they are turned to auto by default
is it something to do with ocing and should i enable/disable them??

 

[topgear]

re: CPU Overclock List & Discussion Thread

go through the thread pages, read them carefully and keep cpu temps in check.

Disable all auto OC option - manually crack up the CPU FSB or something like that from 200 Mhz to 216 Mhz - keep every other settings at their default values.

Post a cpu-z screen shot of cpu and mem tab.

 

[ithehappy]

re: CPU Overclock List & Discussion Thread

you need to disable AI OC and manually OC your cpu to change vcore setting. Follow the links provided by asigh to manually oc your cpu.

1.43750V vcore is way too high - to hit 3.7 GHz you need to set vcore around 1.265v-1.3v - ( may be you need to decrease the multiplier a little bit too ) it's just for an example - you have to find the proper volt by using trial and error method - always keep an eye on the temp - keep it under 70c under load and you will be fine.

If you set a vcore say 1.3v in bios and cpu-z is showing you a vcore of 1.285V or some less value under 100% cpu load it's just an proper example of vdrop. Vdrop is when your CPU voltage drops down than the set value in bios and it's normal.

Well, I re checked BIOS and set CPU Voltage to 1.2625V, then ran Stress Test by Prime95+Real Temp, it completed the test with Max temperatures at- 68-66-65-63. Then ran OCCT for 15 minutes, Max temp reached, 70-70-68-66°C.
So do you think the temperature and the CPU Voltage is OK now? The QPI/DRAM Voltage was 1.43750V while doing all this. May I know what this QPI/DRAM Voltage is? Should I try to decrease it too?

Attaching some screen shots while was doing the tests. Please have a look. I have also did a test @ 1.28V to see the difference.

Thanks in advance and Regards.
Merry X-MAS to you ALL.:C_xmas:

PS- My room temperature was 23°C.

 

[topgear]

re: CPU Overclock List & Discussion Thread

Those temps are really nice - now try to decrease the cpu vcore even more untill yu find the lowest possible stable voltage. Decrease cpu voltage in by 0.0050 - 0.0025 volt each time - check the stability and decrease it again.

QPI/DRAM Voltage is memory controller voltage but in case of core i7 cpus it's built within cpu - so a higher qpi volt means increased cpu volts - intel recommends to keep it upto 1.35V but many mobos tends to run with higher qpi voltage than this.

QPI voltage usually increases with the speed of ram. Say with 1333Mhz you would get 1.2V and with 1600 Mhz you would get around 1.32 or may be even higher though there's no perfect rule to this - most of the time mobo automatically provide proper qpi voltage and when you OC your cpu mobo tends to automatically adjust qpi voltage by increasing it which most of the time is more than needed.

So to know about proper qpi voltage you should first two things :

1. What's your Ram speed with the Oced cpu ?
2. What's your RAM ( Memory Module ) Voltage Under bios ?

A simple safe limit rule is you should always keep your qpi voltage 0.25-0.5V lower than memory module voltage.

In your case the qpi voltage is 1.43750V ( voltages upto 1.45V considered to be safe by the experienced users ) - though it's not anything alarming by you may try lowering it a bit - say 1.385V or 1.4V until you find the minimum stable voltage.

 

[ithehappy]

re: CPU Overclock List & Discussion Thread

Those temps are really nice - now try to decrease the cpu vcore even more untill yu find the lowest possible stable voltage. Decrease cpu voltage in by 0.0050 - 0.0025 volt each time - check the stability and decrease it again.

QPI/DRAM Voltage is memory controller voltage but in case of core i7 cpus it's built within cpu - so a higher qpi volt means increased cpu volts - intel recommends to keep it upto 1.35V but many mobos tends to run with higher qpi voltage than this.

QPI voltage usually increases with the speed of ram. Say with 1333Mhz you would get 1.2V and with 1600 Mhz you would get around 1.32 or may be even higher though there's no perfect rule to this - most of the time mobo automatically provide proper qpi voltage and when you OC your cpu mobo tends to automatically adjust qpi voltage by increasing it which most of the time is more than needed.

So to know about proper qpi voltage you should first two things :

1. What's your Ram speed with the Oced cpu ?
2. What's your RAM ( Memory Module ) Voltage Under bios ?

A simple safe limit rule is you should always keep your qpi voltage 0.25-0.5V lower than memory module voltage.

In your case the qpi voltage is 1.43750V ( voltages upto 1.45V considered to be safe by the experienced users ) - though it's not anything alarming by you may try lowering it a bit - say 1.385V or 1.4V until you find the minimum stable voltage.

I will try to decrease the QPI/DRAM Voltage then. My RAM speed is 1600MHz, but I didn't understand what did you mean by Ram speed with Oced cpu? Should the RAM speed change with CPU speed as well?
As I said before, I did the OC'ing from my BIOS, so under 1.2625V the option was 1.256V and when I checked that the system was okay, but the system froze/hang when I ran Prime95 Stress Test.
BTW- I have a query, How will I save a OC profile in BIOS? I clicked 'Start O.C Profile Utility', then the blue screen moves to a save page, but where and how will I save a profile? I don't wanna run my proccy @ 3.7 GHz all time besides gaming.

As always, thank you very much for your valuable reply and in advance.
Regards.

 

[topgear]

re: CPU Overclock List & Discussion Thread

in some mobos when you oc cpu using auto settings Ram automatically also gets oced - so I asked about that - post a screen shot of cpu-z memory tab and it will make everything clear.

Read the mobo manual carefully to know about how you can save OC profile in Bios - I've no idea about your mobo.

Prime95 hanged during load test coz your cpu was not getting enough juice while steers testing so you can't say it a very stable OC - Set the cpu vcore 1.28V and test again - run OCCT 1 hour cpu test to know if your OC is stable enough or not.

BTW, if you can remount the Hyper 212+ with some good TIM and see if you can get lower temps under load.