TPU's Core i7 Overclocking and Feedback

[dcf-joe]

Alright, I will post my BIOS settings when I get the chance. However, here is a quick rundown.

1. CPU Voltage: 1.440 V
2. CPU PLL Voltage: 2.0 V
3. QPI Voltage: 1.43V
4. DRAM Voltage: 1.64 V
5. Clock: 200 * 20 (Turbo Disabled)
6. CPU Differential Amplitude: 1000 mV
7. CPU Spread Spectrum: Disabled
8. Assume everything else is set to auto

This setup will not even pass 70% on the 1024m test option of wPrime.

 

[Chicken Patty]

Alright, I will post my BIOS settings when I get the chance. However, here is a quick rundown.

1. CPU Voltage: 1.440 V
2. CPU PLL Voltage: 2.0 V
3. QPI Voltage: 1.43V
4. DRAM Voltage: 1.64 V
5. Clock: 200 * 20 (Turbo Disabled)
6. CPU Differential Amplitude: 1000 mV
7. CPU Spread Spectrum: Disabled
8. Assume everything else is set to auto

This setup will not even pass 70% on the 1024m test option of wPrime.

PLL should be good at 1.8v, try lowering it. Use between 1.8v and 1.9v. I have mine at 1.8v all the way up to 4.3 GHz.

QPI mine at 4ghz is also much lower at 1.3v. Try lowering it. More voltage is not always better.

Maybe your RAM needs more voltage. Try higher dram, keep it within .5v of the QPI though.

 

[Fitseries3]

leave pll on auto/stock

dram is too low no matter what anyone else tells you. try 1.7+

leave "cpu differential amplitude" on auto fi possible

 

[Fitseries3]

PLL should be good at 1.8v, try lowering it. Use between 1.8v and 1.8v. I have mine at 1.8v all the way up to 4.3 GHz.

QPI mine at 4ghz is also much lower at 1.3v. Try lowering it. More voltage is not always better.

Maybe your RAM needs more voltage. Try higher dram, keep it within .5v of the QPI though.

i figured out though....

vtt should be close to the vcore for MAXIMUM stability.

i get ABSOLUTLY NO BSODs when i do this.

 

[Chicken Patty]

i figured out though....

vtt should be close to the vcore for MAXIMUM stability.

i get ABSOLUTLY NO BSODs when i do this.

how close for example? If you run 1.7v DRAM, how close do you run the vtt?

 

[Fitseries3]

i run 1.7-1.8v on mem no matter what.

vcore seems to need around 1.53v above 4.2ghz(for me) in order to keep HT on.

i keep vtt at 1.52-1.53 at those settings.

1.25v- 1.27v is all you need on the IOH(NB) no matter what.

 

[Chicken Patty]

i run 1.7-1.8v on mem no matter what.

vcore seems to need around 1.53v above 4.2ghz(for me) in order to keep HT on.

i keep vtt at 1.52-1.53 at those settings.

1.25v- 1.27v is all you need on the IOH(NB) no matter what.

dang, how safe is that much vtt Thanks

 

[Fitseries3]

its not that much really. it goes red in most bios's around 1.8v vtt or so.

the way pll works though...

no need to ever run it over 1.8 or whatever stock is.

 

[dcf-joe]

Are you sure to put my ram at 1.7 +? I manufacture says that it is rated to run at 1600 mhz at 1.65 volts.

 

[Fitseries3]

pfffffffffffffffffffffft

thats total BS.

i've ran ddr3 from 1.5 all the way to 2.3v no problem. no need on I7 but 1.5 - 1.9v is no problem in the VTT range we are in.

what is labled on the stick/box is just the recommended voltage for that stick to run at stock.

 

[Chicken Patty]

its not that much really. it goes red in most bios's around 1.8v vtt or so.

the way pll works though...

no need to ever run it over 1.8 or whatever stock is.

gotcha. Maybe i'll expiriment a bit later. If I get some good results, Ill post back Thanks fit!!

 

[dcf-joe]

Alright, wish me luck. I am off on a mini adventure to make my clock stable!

 

[Fitseries3]

for what its worth...


here's what i paid for my setup....

ECS x58 - $150
3x2gb crucial ram - $81
i7 920 - $229
2x gtx295s - $1145
enermax 1250watt psu - $289
xigy DK - $45
2x ocz vertex 30gb ssds - $225
samy dvdrw - $21

and what have i shown?

cheap ram runs 100% OCed with little effort and has same chips as top $ ram,
cheap mobo OCs as well as top $ ones,
and what we all know already...

i7 920 is best cpu for the money hands down.

EDIT: rofl! my video cards cost more than everything else added together.

 

[dcf-joe]

No luck I set my PLL on auto, QPI down to 1.4V, and my DRAM up to 1.72V. The wPrime test failed at about 78%. What do I do?

 

[Fitseries3]

STOP RUNNING PRIME

why does everyone do that?

try more vcore.

 

[dcf-joe]

Alright, I will do that later. Right now at 3.8 GHz (which is completely stable), I am idling at around 40 C. That is with a two fan radiator on an Apogee GTZ. I have tried 1.5 V, but I was pushing about 180 F. I don't know if that is good or not.

 

[trt740]

STOP RUNNING PRIME

why does everyone do that?

try more vcore.

Because it is how true stability is found, that and Intel burn in, occt etc. Heck even AMD and Intel use stress testing tools to set clock speeds on their chips and to determine stability.If it's good enough for them it's good enough for me.

 

[Tatty_Two]

how close for example? If you run 1.7v DRAM, how close do you run the vtt?

Where possible, either the next increment above or below VCore, I say that because my VCore and VTT voltage increments are not in sync. So at 4.1gig (non HT) my VCore is on 1.28v my vtt is on the closest increment to that which is 1.275. My option above it is 1.29v.

 

[Tatty_Two]

STOP RUNNING PRIME

why does everyone do that?

try more vcore.

Because purists dont post overclocks if a fart would make them unstable It's a bit like overclocking thru clockgen in windows, it's just not a gentlemans endevour and pretty meaningless IMO..... Dont get me wrong, I dont get hung up on Prime/OCCT, I just see it as a safety valve, if I can run just a few minutes in prime it makes me feel safer that the board aint gonna go "bang"

 

[Fitseries3]

Because purists dont post overclocks if a fart would make them unstable It's a bit like overclocking thru clockgen in windows, it's just not a gentlemans endevour and pretty meaningless IMO..... Dont get me wrong, I dont get hung up on Prime/OCCT, I just see it as a safety valve, if I can run just a few minutes in prime it makes me feel safer that the board aint gonna go "bang"

my point exactly....

a few mins... fine. an hour or so.... fine.


but a few days? WTF... come on. stop wasting your time.

at least join our WCG team and crunch to save a life if you're that obsessive about it.

use the computer for something that makes you enjoy it. not waste power for nothing other than math calculations that help no one other than yourself

 

[trt740]

my point exactly....

a few mins... fine. an hour or so.... fine.


but a few days? WTF... come on. stop wasting your time.

at least join our WCG team and crunch to save a life if you're that obsessive about it.

use the computer for something that makes you enjoy it. not waste power for nothing other than math calculations that help no one other than yourself

most true overclockers use 3 hours.

 

[Fitseries3]

im a true OCer and i use 24/7 WCG crunching. it helps me, it helps others and its just as good as and priming prog you use.

link is in my sig if you care to give it a try.... unless of course you dont count me as a true OCer.

 

[trt740]

im a true OCer and i use 24/7 WCG crunching. it helps me, it helps others and its just as good as and priming prog you use.

link is in my sig if you care to give it a try.... unless of course you dont count me as a true OCer.

thanks but folding home is fine for me

 

[Fitseries3]

fold on your gpu. crunching makes better use of the cpu than F@H.... even the F@H big dawgs have joined in.

 

[trt740]

fold on your gpu. crunching makes better use of the cpu than F@H.... even the F@H big dawgs have joined in.

I'm sure but I fold on my cpu aswell to each his own. It is all for a good cause.