has any body OC'd an asus p8z68 using the tpi switch?

red eye

red eye

red eye

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What clocks did you get?
I get a .1ghz oc that crashes when watching blu ray with power dvd
 
It gave me 3.4ghz out of my 2500k. I will oc manually when I read up a bit more on it. asus say it will find stable settings, I get 100mhz though bios, software and the switch wondering if I got a dud mobo or auto oc is just crap
 
Stay away from it - horrible thing!

Do it manually by just upping the multiplier and let the auto volts do the rest if you're not confident.

As long as you're around the 1.35V vcore mark it's absolutely fine.

Good luck!
 
Hi Red Eye,
My 2500K is manually overclocked to 4.5GHz (45x100 bclk), the TPU switch is on, but I manually set the multiplier AFTER I flicked the switch. I think it helps to regulate voltages, temps etc to some extent.
My system is totally stable at 4.8gig- I backed off again simply because I didn't need that power. At 4.5, I've never had a BSOD or crash of any kind, even when running MilkyWay flat out and playing a game at the same time!
And by the looks of things, Rusty's system is pretty similar...
 
Missed an important point:
When in your BIOS, make sure you enable VCC Overvoltage (mine is set to auto). I suffered lockups in Win7 at a mere 4gig with this disabled- as it was under the default settings. I left everything else untouched, on the auto settings.
My Vcore maxes at 1.384V, and temps at 68C under full load.
Oh, and I'd recommend a good CPU cooler- the stock unit that comes with the processor (if that's what you are using) starts to struggle at these speeds...
 
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Dougal you got 4ghz with vcc disabled I don't know what mine is set at the bit of paper I wrote settings on grew legs.
With a .1ghz oc I'm thinking somethings wrong with my build, the ram gets a good oc
 
I left my ram at stock speed. OCing ram can be counterproductive. What ram are you using?
Your build is most likely fine, as the system works.
Go into your BIOS and set bus speed to 100.0 MHz and multiplier to 42. Leave the TPU switch on. This should give you an easy 4.2GHz OC. Download one of the many apps to keep an eye on your CPU temp.
If the overclock fails, your mobo will restore to the default settings automatically, and reboot at stock 3.3gig- it will stop and start a few times- don't touch the power switch!
Use a benchmark/ burn-in program to test for stability, and creep it up .1gig a time by increasing the CPU multiplier.
 
dougal1331 said:
I left my ram at stock speed. OCing ram can be counterproductive. What ram are you using?
Your build is most likely fine, as the system works.
Go into your BIOS and set bus speed to 100.0 MHz and multiplier to 42. Leave the TPU switch on. This should give you an easy 4.2GHz OC. Download one of the many apps to keep an eye on your CPU temp.
If the overclock fails, your mobo will restore to the default settings automatically, and reboot at stock 3.3gig- it will stop and start a few times- don't touch the power switch!
Use a benchmark/ burn-in program to test for stability, and creep it up .1gig a time by increasing the CPU multiplier.
Click to expand...
im using Kingston genesis gray playing up. is that 4.2ghz @ 1.144v?

I can't see bus speed or multiplyer in bios wonder if bclk @103.0 and by all cores 45 is the same?
 
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red eye said:
im using Kingston genesis gray playing up. is that 4.2ghz @ 1.144v?

I can't see bus speed or multiplyer in bios wonder if bclk @103.0 and by all cores 45 is the same?
Click to expand...

Yes: bclk is the bus speed in MHz. Set it to 100. 'By all cores' is the multiplier- set it to 42.
It's unlikely your vcore will be as low as 1.144V- probably more like 1.30-1.33 at this sort of speed. As long as it stays below 1.42V...
Keep your RAM set at its stock speed and stock voltage for now- OCing memory doesn't make that much difference anyway, and you just run a higher risk of instability.
 
dougal1331 said:
Yes: bclk is the bus speed in MHz. Set it to 100. 'By all cores' is the multiplier- set it to 42.
It's unlikely your vcore will be as low as 1.144V- probably more like 1.30-1.33 at this sort of speed. As long as it stays below 1.42V...
Keep your RAM set at its stock speed and stock voltage for now- OCing memory doesn't make that much difference anyway, and you just run a higher risk of instability.
Click to expand...
1.144v is what bios is showing, will check while running intel burn test.
bclk will not stay at 100mhz I keep changine to 100 but the next time i check bios its back to 103.

the 'by all cores' is set at 45 so all I have to do is increase the cpu voltage untill I hit 4.5ghz, hopefully before I hit 1.39v while performing stablilty tests after each adjustment. After that I can try to get into the ocuk 5ghz club.

Thank you.
 
Odd. You should be running OVER 4.5gig with those settings... Are you definitely hitting F10 in the BIOS, to save changes? It shouldn't keep resetting the bclk to 103.
You should also not have to increase the voltage- the CPU will take as much as it needs for a given speed, and you can then try decreasing it by minimal increments, to reduce temperatures.
I've been OCing for a few months now, and I'm still not really experienced enough to have a go for the 5GHz club! I will do it, but I'm doing plenty of reading and research first to make sure I don't balls anything up.
I think the more upmarket mobos are better for heavy OCs- my LX model is technically a budget board- it'll go to 4.5 happily enough though.
 
Yeah I noticed the f10 to save in the box to the right. Its set to 100 now, I just need to download an app that shows what speed the cpu is running cpuz gives me an error 5 and shows no cpu info
 
red eye said:
Yeah I noticed the f10 to save in the box to the right. Its set to 100 now, I just need to download an app that shows what speed the cpu is running cpuz gives me an error 5 and shows no cpu info
Click to expand...

This give me my correct speed

http://openhardwaremonitor.org/

This is mine..

NlLCv.jpg.png
 
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