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**Official ASUS P5Q PRO Turbo/PRO/Turbo Owners Club** (All ASUS P45 Mobo Owners Welcome!) - Page 242

Poll Results: Do you prefer the new OCN?

 
  • 35% (32)
    Yes!
  • 15% (14)
    No!
  • 14% (13)
    Yes and No!
  • 34% (31)
    Don't give a damn about it! (LOL)
90 Total Votes  
post #2411 of 6470
Quote:
Originally Posted by turrican9 View Post
Will run Blend overnight first. Then start Large FFT's again when I'm going to work tomorrow.

I've just recently found the adjustments that seems to work well at my current settings.

Freeze are typical of NB problems. Every board responds different. So you can't really compare your symptoms to the P5Q-E.

Also keep in mind, every CPU is different. As I've said, I already know my Q9400 handles higher FSB in my Gigabyte GA-P35 DS3R VS my Q9650. Also your Q9550 can handle 460FSB P95 Large FFT's stable in your P5Q Pro. My could only handle 450FSB in my Pro Turbo. And even then, it was not infinte Large FFT's stable.

So my guess is that your Q9550 would have gone to 490FSB + in my P5Q-E. I have not tried my Q9400 in this board, but I have the feeling it too would have gone a little further.
Yeah typical NB issue..

I recommend you to use at least 1.4V NB for attempts on 500MHz FSB..

For 506MHz FSB I needed vNB=1.5V to be "stable" in SuperPi/3DMark11/games etc..

And I have ran it for hours doing just everyday work on my comp,web browsing,gaming etc without any issues..

(506 x 8.5 and Vcore=1.40V under LOAD,LLC = ON)

CHEERS..
     
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post #2412 of 6470
Quote:
Originally Posted by KingT View Post
Yeah typical NB issue..

I recommend you to use at least 1.4V NB for attempts on 500MHz FSB..

For 506MHz FSB I needed vNB=1.5V to be "stable" in SuperPi/3DMark11/games etc..

And I have ran it for hours doing just everyday work on my comp,web browsing,gaming etc without any issues..

(506 x 8.5 and Vcore=1.40V under LOAD,LLC = ON)

CHEERS..
I need vNB 1.4 x0.665 NB GTL even for 483FSB. I've tried higher. As I've said, each CPU has different walls. It's not entirely up to the mobo...

Edit: I never came past 500FSB in my P5Q Pro Turbo. You did 520FSB +. I tried everything. So my CPU has a lower wall than yours. Simple as that.
    
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post #2413 of 6470
Quote:
Originally Posted by turrican9 View Post
I need vNB 1.4 x0.665 NB GTL even for 483FSB. I've tried higher. As I've said, each CPU has different walls. It's not entirely up to the mobo...

Edit: I never came past 500FSB in my P5Q Pro Turbo. You did 520FSB +. I tried everything. So my CPU has a lower wall than yours. Simple as that..
Yeah but I highly doubt it that your Q9650 has a 480MHz FSB wall..

It should be good up to 500 - 510MHz FSB P95 Large FFT stable on a good mobo,with a good NB (A3) and precise GTL/Ref settings like UD3P which has CPU Reference voltage setting in mV (not in GTL multies)..

And that chip on Mobo like UD3P would do up to 540MHz FSB validaton easiliy..

Dunno why but UD3P does have that something "extra" when paired with C2Q..

NOTICE: I have achieved 525MHz FSB with a SetFSB and max FSB I was able to boot to OS str8 from the BIOS was 506MHz..

CHEERS..
Edited by KingT - 3/20/11 at 3:33pm
     
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post #2414 of 6470
Quote:
Originally Posted by KingT View Post
Yeah but I highly doubt it that your Q9650 has a 480MHz FSB wall..

It should be good up to 500 - 510MHz FSB P95 Large FFT stable on a good mobo,with a good NB (A3) and precise GTL/Ref settings like UD3P which has CPU Reference voltage setting in mV (not in GTL multies)..

And that chip on Mobo like UD3P would do up to 540MHz FSB validaton easiliy..

Dunno why but UD3P does have that something "extra" when paired with C2Q..

NOTICE: I have achieved 525MHz FSB with a SetFSB and max FSB I was able to boot to OS str8 from the BIOS was 506MHz..

CHEERS..
My P5Q-E is A2 revision. As I've said. Read somewhere that one could excpect 500FSB + (Give) or - (take) 10MHz. So it adds up. So 490 with a C2Q that has a normal FSB wall. As I've said, I think my Q9650 has a somewhat Low wall. It happens.
Edited by turrican9 - 3/20/11 at 3:40pm
    
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post #2415 of 6470
Quote:
Originally Posted by turrican9 View Post
My P5Q-E is A2 revision. As I've said. Read somewhere that one could excpect 500FSB + or - 10MHz. So it adds up. So 490 with a C2Q that has a normal FSB wall. As I've said, I think my Q9650 has a somewhat Low wall. It happens.
Maybe you have missunderstood what I have said...

For me a CPU FSB wall is when you cannot upp it any more regardless on the stability (in this case P95 Large FFT stability)..

It does not have anything to do with a motherboard if the same mobo can do higher FSB with a different CPU (but the same type,in this case a C2Q)..

So to me your Q9650 does not have a FSB wall of 490MHz FSB,it's just a motherboard limitation to get higher FSB stable..

If you use SetFSB and with a little tweaking you could go beyond that 500MHz mark (for example for validation,SuperPi etc)..

Stable FSB limit and max FSB limit (the FSB wall)are not the same thing..

CHEERS..
Edited by KingT - 3/20/11 at 3:49pm
     
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post #2416 of 6470
Quote:
Originally Posted by KingT View Post
Maybe you have missunderstood what I have said...

For me a CPU FSB wall is when you cannot upp it any more regardless on the stability (in this case P95 Large FFT stability)..

It does not have anything to do with a motherboard if the same mobo can do higher FSB with a different CPU (but the same type,in this case a C2Q)..

So to me your Q9650 does not have a FSB wall of 490MHz FSB,it's just a motherboard limitation to get higher FSB stable..

If you use SetFSB and with a little tweaking you could go beyond that 500MHz mark (for example for validation,SuperPi etc)..

Stable FSB limit and max FSB limit (the FSB wall)are not the same thing..

CHEERS..
Different CPU's have different FSB limits in the same mobo. Or FSB Walls. Mine has a wall in my P5Q-E at about 490FSB. Anything past this and I have to go crazy on mobo volts etc... I have seen a Q8xxx go 10MHz higher FSB VS a Q9xxx in the same board.
    
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post #2417 of 6470
Quote:
Originally Posted by turrican9 View Post
Different CPU's have different FSB limits in the same mobo. Or FSB Walls. Mine has a wall in my P5Q-E at about 490FSB. Anything past this and I have to go crazy on mobo volts etc... I have seen a Q8xxx go 10MHz higher FSB VS a Q9xxx in the same board.
We are clearly not on the same page here..

First of all every mobo is different just as CPU's are..

When you say FSB wall do you mean a max FSB that your system is able to boot with or a max Stable FSB (P95 large FFT)..??

And the fact that you need to go crazy on mobo voltages beyond 490MHz FSB is showing you that it's your mobo limitation..

If you had for example a Gigabyte EP45 mobo you would boot @ 500MHz FSB with auto settings easily and with a Gigabyte tune utility you would go waaay beyond that mark..

A Gigabyte EP45 needs only ~1.37V NB for a stable 500MHz FSB and Asus P5Q mobos need at least 1.47 and it's not stable..(stability in P95)

And on Gigabyte EP45 UD3P the same CPU needs less Vcore for a certain OC than it needs on Asus P5Q mobos..

CHEERS..
     
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post #2418 of 6470
Thread Starter 
Quote:
Originally Posted by Improvidus View Post
I also own a P5Q Pro Turbo that I purchased after my abit IP35 Pro board failed. My motherboard and my and video card failed at the same time just 3 months after my old power supply stopped working.

I was running at 3.6 GHz on stock voltage which was fine for the 3 years I've owned my e8400. Recently I decided to go up to 4.0~4.2GHz for a little performance bump until I build a new system at the end of the year.

I'm trying to achieve this overclock with a 8~8.5 multiplier. I seem to have found the following settings for 500 FSB that are Prime95 stable for 11.5 hours.

FSB Frequency: 500.00 MHz
CPU Voltage: 1.22500 V
CPU GTL REF: 0.65x
CPU PLL: 1.560 V
FSB Term. Volt.: 1.320 V
DRAM Voltage: 2.100 V
NB Volt: 1.320 V
SB Volt: 1.100 V
SB PCIE: 1.500 V
Load-Line Calibration: Enabled
CPU Clock Skew: Normal
NB Clock Skew: Normal

These seem to be the minimum voltages I can use to achieve stability at this speed. 1.3v for FSB failed after a couple of hours. I bumped it to 1.32v and so far all my testing shows this as being stable.

RAM is listed below and is using 5-5-5-15 timings. This is DDR2 800 RAM that overclocks extremely well. It is warrantied for 1.8V-2.1V. I'm currently running 2.1v for DDR2 1000 speeds, but it's possible I could bump that down to 2.08v or even 2.06v.

I'll update once I get the processor stable at 4GHz. Might be a couple of days as I'll be working the next few days. I want to make sure the current settings are solid before bringing my multiplier back up. If I recall correctly, my processor requires a bit over 1.35v for 4GHz. This was quite a while ago, but I think the actual voltage in BIOS may have been a tad higher.

Edit: Not sure if OC is 100% stable yet. Firefox is crashing, but it might not be related to the OC. It's possible the crashing may be an issue with one of my addons since it was just updated to RC2. I haven't actually used RC2 much since I've been checking my OC, but I'll go back to stock settings and see if the issue persists.
Welcome to OCN and welcome aboard Improvidus!!!

Looking forward to see your success in overclocking to 4-4.2GHz!

Try installing a stable version of firefox, and if no good with stability. Then, try bump up a bit on voltage like VCore.

Please check out the 1st page of this club and related discussions on overclocking by other club members to enhance your experience overclocking with the -PRO Turbo.

Happy overclocking!
Edited by ocman - 3/20/11 at 4:33pm
     
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post #2419 of 6470
Quote:
Originally Posted by KingT View Post
We are clearly not on the same page here..

First of all every mobo is different just as CPU's are..

When you say FSB wall do you mean a max FSB that your system is able to boot with or a max Stable FSB (P95 large FFT)..??

And the fact that you need to go crazy on mobo voltages beyond 490MHz FSB is showing you that it's your mobo limitation..

If you had for example a Gigabyte EP45 mobo you would boot @ 500MHz FSB with auto settings easily and with a Gigabyte tune utility you would go waaay beyond that mark..

A Gigabyte EP45 needs only ~1.37V NB for a stable 500MHz FSB and Asus P5Q mobos need at least 1.47 and it's not stable..(stability in P95)

And on Gigabyte EP45 UD3P the same CPU needs less Vcore for a certain OC than it needs on Asus P5Q mobos..

CHEERS..
I meant the max operational FSB. Not just what is Large FFT's stable. Each individual CPU will have small differences in FSB limits in the same motherboard. This is a known fact.

Another matter, just to tell you how sensitive the NB GTL is.. On the above settings I ran stable Blend for hours at 1.38vNB x0.665 NB GTL before it froze. I increased NB Voltage to 1.4v and left the GTL NB multi. Blend Froze almost instantly. I then tried 1.36vNB and again left the NB GTL multi. Again, it froze quickly. Then I tried 1.38vNB x0.675. Again, froze quickly in Blend. Then I tried 1.38vNB again and downed the GTL NB multi to x0.655, and now it's humming along... EXTREMELY sensitive! Totally sick! If I go much lower on the multi it will not work for my system on these FSB speeds, tried it

Seeing this, and how psycho sensitive this NB GTL is, it may be I could be lucky and find a vNB and GTL NB combination that will not freeze at 490FSB +.

So it won't help just throwing volts on NB. The NB GTL is also a big key. This is very, very time consuming. The NB GTL's that has worked for me up to 480FSB + is in the x0.65x to 0.665 range. Anything lower, or higher and it will freeze. No matter NB volts. Right now I can probably go lower than vNB 1.38 as long as I'm using the x0.655, which I hope will Blend through the night, seeing as the 0.665 was stable for hours, but anything over that froze quickly. No matter NB volts.
Edited by turrican9 - 3/20/11 at 4:52pm
    
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post #2420 of 6470
I left Prime95 running while I was at work today. I just got back and one thread had failed after just under 8 hours. The other thread was fine running for just under 11 hours before I manually stopped it. I didn't have any failures during my testing yesterday even after running Prime95 longer.

I'll trying bumping FSB to 1.34v and running Prime95 overnight tonight. My setting of 1.30v FSB was only stable for 2 hours in Prime95. Maybe another tiny bump will help get that extra bit of stability.

Quote:
Originally Posted by ocman View Post
Welcome to OCN and welcome aboard Improvidus!!!

Looking forward to see your success in overclocking to 4-4.2GHz!

Try installing a stable version of firefox, and if no good with stability. Then, try bump up a bit on voltage like VCore.

Please check out the 1st page of this club and related discussions on overclocking by other club members to enhance your experience overclocking with the -PRO Turbo.

Happy overclocking!
Thanks for the welcome. I shouldn't need to bump VCore yet since I'm running a multiplier of 6 while I try to get 100% stability with 500MHz FSB.

Another thing I did was run HCI Memtest to check that my RAM was stable running at DDR2 1000 speeds. I ran it and had 244% coverage with 0 errors so I think I'm all set there.

Interesting side note: With a FSB of just 400MHz my Pro Turbo will set CPU PLL to 1.7v if I leave the setting on Auto in BIOS.

Update: I restarted and set FSB to 1.34v, but Firefox crashed again with the crash reason being EXCEPTION_ACCESS_VIOLATION_READ. Went back and bumped NB to 1.34v. I tried playing Borderlands using these settings, but crashed with a c0000005 error and general protection fault.
Edited by Improvidus - 3/20/11 at 8:48pm
     
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