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TPU's Core i7 Overclocking and Feedback

Then again the water has more thermal mass already in it because of the pump's heat, so you lose what little you would gain. It might make a difference in a really restrictive loop. Single loop with one block... you'd see no difference.

Although mine's not an i7 setup, there is no difference in temps at all for me between pump/res combo > cpu > rad > pump/res and pump/res > rad > cpu > pump/res.
 
Thanks for confirming. I switched mine around from Res>CPU>Rad>Pump>Res to Res>Pump>Rad>CPU>Res and noticed a small difference but I also think my cable management in the process made a difference allowing more air to travel through the rad. I think I may need stronger fans :-/
 
Thanks for confirming. I switched mine around from Res>CPU>Rad>Pump>Res to Res>Pump>Rad>CPU>Res and noticed a small difference but I also think my cable management in the process made a difference allowing more air to travel through the rad. I think I may need stronger fans :-/

Speaking of stronger fans, I just ordered 6 Yate Loon hi speeds from Petras with a fan controller. The lower speed fans I have on my 2 rads now aren't cutting it for high voltages. Temps aren't bad, but should be better, imo.
 
Hello,

Since yesterday I've a core i7 and I'd like to overclock it but I don't know how.
My system specs:


Processor: Core i7 920
Motherboard: Gigabyte GA-EX58-UD5
Cooling: Scythe Infinity Mugen 2 with MX-2
Memory: OCZ Platinum XTC OCZ3P1600LV3GK CAS 7@ 1.65v
Video Card: XFX GTX280 1GB
Harddisk: Samsung F1 1TB
CD/DVD Drive: Samsung SH-223F
CRT/LCD Model: Samsung T220
Case: Antec Peformance 182 with 4 Case fans
PSU: Cooler Master Silent Pro M700

Idle temps are about 25 degrees celcius..
How do I overclock my core i7? I've enver overclocked a cpu before so I've no experience.
Could you please help me with the BIOS settings?

thank you :toast:
 
Well Mudkip. Glad to have you here but you have a LOT of research ahead of you. I know, you asked your question, but there is a problem all of us with i7 have faced. The problem is that each and every single chip behaves a little differently than the others. For now that is the case, but maybe in a revision or two it'll be more standardized.

eva2000 said:
Note that NOT all Core i7 cpus are created equal!

One thing that is standard with all i7 processors is how the processor works. Vocabulary is key here:

BCLK- Base Clock, the very heart of your CPU. It is the product of your BCLK and multiplier that creates your core clock. A stock i7 920 will be at 133 BCLK x20 or x21. My standard 4.2GHz clock is a BCLK of 200 with a multiplier of x21.

DRAM- Your memory's speed. The DRAM speed is a product of your BCLK and the DRAM multiplier. Ram multipliers are fixed to x6 x8 x10 x12 etc by a factor of 2.

UnCore- The uncore is double your DRAM speed or higher. Always.

QPI- Quick Path Interface. A setting best left on AUTO or 3.6GHz unless you have an i7 965.

Now that you have an idea what can be tweaked to change the speed of your i7 you're left loose into the wild. You have to do the rest. There is about 50 pages of this thread that are all discussion about overclocking, and you would do yourself a service to skim through it until you saw something that matches up with the items I mentioned above. Voltages are a matter also entirely up to discovery. Since every i7 is different the voltages required to achieve a goal vary from chip to chip. These differences are not drastic, but are different enough that with my exact settings you could end up not even POSTing.

Places you should look for information:

  • Motherboard Instruction Manual
  • Manufacturer's Forums
  • Threads in Overclocking forums dedicated to your specific motherboard.
  • This thread's previous posts. Lots of potential gold.

If you have any more specific questions please do not hesitate to ask :D
 
Hello,

Since yesterday I've a core i7 and I'd like to overclock it but I don't know how.
My system specs:


Processor: Core i7 920
Motherboard: Gigabyte GA-EX58-UD5
Cooling: Scythe Infinity Mugen 2 with MX-2
Memory: OCZ Platinum XTC OCZ3P1600LV3GK CAS 7@ 1.65v
Video Card: XFX GTX280 1GB
Harddisk: Samsung F1 1TB
CD/DVD Drive: Samsung SH-223F
CRT/LCD Model: Samsung T220
Case: Antec Peformance 182 with 4 Case fans
PSU: Cooler Master Silent Pro M700

Idle temps are about 25 degrees celcius..
How do I overclock my core i7? I've enver overclocked a cpu before so I've no experience.
Could you please help me with the BIOS settings?

thank you :toast:

I wish I can help, but really I dont have experience with your board at all. There are a few peeps with that board on here, maybe they'd wanna chime in here and help.
 
Well Mudkip. Glad to have you here but you have a LOT of research ahead of you. I know, you asked your question, but there is a problem all of us with i7 have faced. The problem is that each and every single chip behaves a little differently than the others. For now that is the case, but maybe in a revision or two it'll be more standardized.



One thing that is standard with all i7 processors is how the processor works. Vocabulary is key here:

BCLK- Base Clock, the very heart of your CPU. It is the product of your BCLK and multiplier that creates your core clock. A stock i7 920 will be at 133 BCLK x20 or x21. My standard 4.2GHz clock is a BCLK of 200 with a multiplier of x21.

DRAM- Your memory's speed. The DRAM speed is a product of your BCLK and the DRAM multiplier. Ram multipliers are fixed to x6 x8 x10 x12 etc by a factor of 2.

UnCore- The uncore is double your DRAM speed or higher. Always.

QPI- Quick Path Interface. A setting best left on AUTO or 3.6GHz unless you have an i7 965.

Now that you have an idea what can be tweaked to change the speed of your i7 you're left loose into the wild. You have to do the rest. There is about 50 pages of this thread that are all discussion about overclocking, and you would do yourself a service to skim through it until you saw something that matches up with the items I mentioned above. Voltages are a matter also entirely up to discovery. Since every i7 is different the voltages required to achieve a goal vary from chip to chip. These differences are not drastic, but are different enough that with my exact settings you could end up not even POSTing.

Places you should look for information:

  • Motherboard Instruction Manual
  • Manufacturer's Forums
  • Threads in Overclocking forums dedicated to your specific motherboard.
  • This thread's previous posts. Lots of potential gold.

If you have any more specific questions please do not hesitate to ask :D

Ok guys, so far I have this:

I did not overclock with easytune but i just opened it to show you the voltages

29pytlv.jpg
is this good?
 
and I thought you couldn't overclock :laugh:

GOod job!!!!
 
I also have a question about memory and uncore.

My memory multiplier is now 6.0 and the uncore 13 is that good? can I put my mmory multiplier on 8 and uncore on 17? becase i have read somewhere that you must do this : 2xmemory multiplier+1 so in this case I should to set the memory multiplier on 8 and uncore on 17.. or is that not reachable for my memory? In other words: what are the best settings to get the max out of my memory?
 
I also have a question about memory and uncore.

My memory multiplier is now 6.0 and the uncore 13 is that good? can I put my mmory multiplier on 8 and uncore on 17? becase i have read somewhere that you must do this : 2xmemory multiplier+1 so in this case I should to set the memory multiplier on 8 and uncore on 17.. or is that not reachable for my memory?

uncore has to be double than the memory always. You can put memory at 2:8 and uncore at least at 16x
 
I also have a question about memory and uncore.

My memory multiplier is now 6.0 and the uncore 13 is that good? can I put my mmory multiplier on 8 and uncore on 17? becase i have read somewhere that you must do this : 2xmemory multiplier+1 so in this case I should to set the memory multiplier on 8 and uncore on 17.. or is that not reachable for my memory?

Personally I just double the DRAM multiplier. So my DRAM is x8 right now it's x16 on the uncore. :toast:
 
Ok i put memory multiplier on 8 and uncore on 16

here are the screens :


2vajdpe.jpg


I also put the v.core voltage on 1.362v in the bios and 1.33v for QPI/VTT voltage.. is that good? But the memory has timings of 10:9:9:22 ... very high?? My memory should do 7:7:7:24

http://www.ocztechnology.com/products/memory/ocz_ddr3_pc3_12800_platinum_low_voltage_triple_channel

or are the timings higher because it's overclocked? should I set them manually?

Also I disabled in bios the following settings:

Intel (r) turbo boost : disabled
CPU enchanced HALT (CIE) : disabled
C3/C6/C7 support : disabled
CPU thermal monitor : disabled
CPU eist function: disabled
bi-directional prochot : disabled

Things I enabled:

Load calibration

Can this cause any harm?

How do I know if my system is stable enough? prime95 and then wait for BSOD?
 
It's not stable beccause when i test prime95 after 5 minutes BSOD... how can I get my computer stable?
 
I also put the v.core voltage on 1.362v in the bios and 1.33v for QPI/VTT voltage.. is that good? But the memory has timings of 10:9:9:22 ... very high?? My memory should do 7:7:7:24

http://www.ocztechnology.com/products/memory/ocz_ddr3_pc3_12800_platinum_low_voltage_triple_channel

or are the timings higher because it's overclocked? should I set them manually?

Also I disabled in bios the following settings:

Intel (r) turbo boost : disabled
CPU enchanced HALT (CIE) : disabled
C3/C6/C7 support : disabled
CPU thermal monitor : disabled
CPU eist function: disabled
bi-directional prochot : disabled

Things I enabled:

Load calibration

Can this cause any harm?

How do I know if my system is stable enough? prime95 and then wait for BSOD?

You need to set the ram timings yourself. Your bios probably has them set to AUTO.


It's not stable beccause when i test prime95 after 5 minutes BSOD... how can I get my computer stable?

That's what you need to figure out. The answer is really up to how well you can problem solve. Write down your settings, change one variable at a time, and tackle it like a mystery. We can't give you any sure fire answers. If you get a result then we can tell you if the result is good or not. I strongly suggest you begin to do research on your particular motherboard while also tweaking until something works. :toast:
 
Is 10 minutes prime95 stable good enough to find a hoger clock? I'm now @ 3Ghz with v.core 1.23750 and QPI/VTT 1.17500v it's prime95 stable for 10 minutes now...
 
10 minutes is not enough, I had clocks failing on me after 1,5 hours before.

On another notice, I just put together a test loop, but the pump seems to fail on me. PSU starts up and spins back down.
That same PSU starts up fine with nothing attached to it.
 
to be stable to need to run prime about at least 8 hours without crashing. Set the timings manually, and maye you need more vcore to be stable at that clock.
 
Is 10 minutes prime95 stable good enough to find a hoger clock? I'm now @ 3Ghz with v.core 1.23750 and QPI/VTT 1.17500v it's prime95 stable for 10 minutes now...

My board should be similar to yours.

Try these:
Load default optimized setting in bios
Set:
baseclock 190x20 (3.8GHz, turbo disabled)
uncore x16
memory 2:6
qpi/vtt 1.3v
vcore 1.35v (LLC enabled)
memory 1.65v

This should work with your setup.
 
My board should be similar to yours.

Try these:
Load default optimized setting in bios
Set:
baseclock 190x20 (3.8GHz, turbo disabled)
uncore x16
memory 2:6
qpi/vtt 1.3v
vcore 1.35v (LLC enabled)
memory 1.65v

This should work with your setup.
Yeah I found that out already..
I reached 3,6Ghz @ 1.2 v.core and standard qpi/vtt ... for 3,8Ghz I had to raise v.core to 1.36 ... thanks anyway ;)

Now heading for 4Ghz
 
How can you find out what your exact v.core is??
 
That's setting is 100% stable, just want to say so.

Cpu-z should be correct.

You should run your memory at lower speed, to reduce the stress on the memory controller, probably allow stability at higher cpu clock.

EDIT: When I said vcore at 1.35, it's the value in bios, with cpu-z, it should be lower, due the vdroop ( the nature of gigaboard...)
 
That's setting is 100% stable, just want to say so.

Cpu-z should be correct.

You should run your memory at lower speed, to reduce the stress on the memory controller, probably allow stability at higher cpu clock.

Hmm.. currently I have memory multiplier on 8 and te uncore on 16.. I'm trying to reach 4Ghz with 1.41 v in bios t it doesn't seem stable.. do you think this could be due the memory? My memory should be able to handle 1600 Mhz @ 7-7-7-20 ... and now it's 1600 Mhz @ 10-9-9-22
 
It's not because of your memory, when you run your memory at higher speed, you need more voltage for the memory controller that's inside the cpu, and it requires higher uncore speed.

Higher voltage for memory, more stress on it, and higher speed for uncore = less stability.

Just run your memory at 1200MHz first. When you got your system stable at 4GHz with 1200MHz memory, that's when you tweak for higher memory speed.
 
It's not because of your memory, when you run your memory at higher speed, you need more voltage for the memory controller that's inside the cpu, and it requires higher uncore speed.

Higher voltage for memory, more stress on it, and higher speed for uncore = less stability.

Just run your memory at 1200MHz first. When you got your system stable at 4GHz with 1200MHz memory, that's when you tweak for higher memory speed.

Ok thank you,

do you have any settings for 4Ghz?
 
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