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**Official ASUS P5Q PRO Turbo/PRO/Turbo Owners Club** (All ASUS P45 Mobo Owners Welcome!) - Page 541

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 #5401 of 6462
Hey guys!
After a month off I'm back!
Had to wait 1 whole month so I can my money back from the ****ty Cooler Master Silent Pro M850W and now I've got Corsair HX750W.
It's some serious thing biggrin.gif
post #5402 of 6462
Welcome back smile.gif

Mhh I've got my FSB and memory stable now, but as soon as I proceed with upping the multiplier on my Q9450 I cannot get it stable anywhere. 3.3Ghz hangs at prime95, 3.5Ghz unstable at 1.168v even at 1.20v and higher. That particular setting was most stable before this high FSB.

Almost seems like it needs different skew adjustment now in combination with the higher FSB. Anyone got experience with this behavior? I was 100% sure 3.5±Ghz was rockstable with Intel Burn Test and prime95 at 1.168v. Must have something to do with the FSB/CPU communication.


Edit: Oh wait, I think its false alarm. For some reason my FSB term voltage went back to 1.20v. No wonder things are unstable. TurboV must have done this, programs works kinda weird sometimes and often totally reads to wrong values. But surprised it even booted into Windows without problems. I think I'm going to decrease the VTT voltage and reconfigure my GTL's for the lowered VTT and see it I can keep it stable biggrin.gif
Edited by Marctraider - 3/9/12 at 1:10pm
post #5403 of 6462
Thread Starter 

Welcome to OCN and Welcome aboard Marctraider!!! wave2.gif

 

Thanks for sharing your BIOS settings! specool.gif

 

Glad you are getting help from club members! thumbsupsmiley.png

 

Hope you can make use of the info found in the 1st page! wink.gif

 

You might want to use RigBuilder to fill in your system specs, so you don't have to restate the list when you post for help! thumb.gif

 

P.S.: Hi guys, I've got back from work and had dinner... typer.gif

     
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post #5404 of 6462
Quote:
Originally Posted by Marctraider View Post

Well I have a big fan at the side of my case which blows cooler air towards the NB heatsink and the mainboard itself so thats pretty sufficient. NB temperatures are 60-65c idle and increases to 70± under load (Blend prime95 test/memtest)
Well it seems I've got it running pretty stable at 480FSB/576Mhz Mem (DDR1152) at 6-6-6-15 timings. I suppose thats still better than DDR2-1066 which (I believe) generally runs at 6-6-6 anyway. I could drop the Performance Level from 10 to 9 with the different Ratio. Running some preliminary tests to see how it goes.
Memory voltage at this speed is a surprising 1.9v at the moment which seems pretty stable. That would almost make me believe the memory can run even higher then 1152 but the first next FSB/ram ratio puts it to 1400+ so thats a tad too high hehe. I will leave it at this for a bit and do some memtest passes.
The one and only timing I really had to change (besides 5-5-5 to 6-6-6) was the READ to READ Delay (S) from 4 to 5 (or possibly 6). Any other timing had no effect at all, so those might even be decreased without stability loss. Upping the voltage had no effect at all, even 2.25v which would probably even make the memory more unstable didn't help, only that specific timing. Took a while to figure out but the results are pretty encouraging.
Sure. But I think the specific GTL Ref voltages are totally dependent on the CPU and are probably totally different with every CPU, even when having the exact same model. But here are my current GTL voltages anyway based on my current VTT of 1.35v;
GTLREF0: +50
GTLREF1: -10
GTLREF2: -50
GTLREF3: -10
A note on the GTLREF2: This was really a very sensitive adjustment and unless it was close to -50 the system kept freezing. GTLREF3 at the other hand was not that sensitive at all, and it could boot and keep itself stable for a big while from -75mV to +75mv± so for that adjustment i just took something in the middle like -10mV. It could be because Cores 2/3 are less important then Core 0/1 since core 0 is probably most utilized anyway when booting up the machine and all that.
Its nice to see how both Die's (0/1 and 2/3) both need different values. +50 and -50 for the first Die (0/1) and -10 and -10 for the second die (2/3) since the processor is virtually just two E8400's or something, not exactly sure.
I could perhaps give you a easy and fast way to get a nice starting point for your GTL ref values though, not sure if its really accurate but it seemed to work well for me;
First find out a near-stable setting at a desired FSB speed, lets say 475MHz FSB and then pump up the FSB voltage to something decent like 1.35v. Then you could do the following method for getting a start on the values;
Put all the GTL's on Auto and first start with the ADDRESS values (should be GTLREF 2 and 3) and tune them one by one and start at +155mv (or the upper limit) and go all the way down to -160mv and see where it boots and where it doesn't. Write the values down and then take the sweet spot in the middle of the upper and lower boot limit.
So an example with adjusting the GTLREF 2 or 3 for instance (Both ADDRESS, I start with these values because these values seems to freeze the system the most instead of actually giving out errors in prime95 for instance);
+125mV (The upper limit for the system to boot and keeping it stable while going throuhg the bios setting.)
-45mV (The lower limit for the system to boot and keeping it stable while you can move through the bios selections)
Now I just took the sweetspot value between these values so I had an average value which +should be a stable starting point to further tweaking it. 125 minus 45 = 80, then we devide that in 2 so the result = +40mV.
I hope that make any sense.
Sorry I didn't have much time posting this so if it's not entirely clear I can elaborate.
So just start with the two ADDR values which are shown here, so you know what GTL's are which (Just in case wink.gif

And afterwards begin to tweak the DATA values as I've described above. At least you have a starting point now. The ADDR value are much more sensitive here and at least here its easy to find out if where and when the whole system freezes because of it. The DATA values seem to reflect more errors in prime95 rather then freezing the whole system. I use the ultimate boot cd to quickly start up prime95 and return to the bios after a successful test.

So the NB can take a bit of heat thrashing? Mine idles at about 35c and loads at about 60c.. tongue.gif
 
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post #5405 of 6462
Tried going further on my E8400.
I managed to achieve a 5-IBT-run-stable result at 4.25GHz... But those measly 100MHz needed a bump from 1.4 to 1.44v thumbsdownsmileyanim.gif By also playing around with the other voltages, I almost managed to get 5 stable passes at 4.3GHz as well, but since those settings drew 1.448v and would have needed even more, I decided not to go further. IMO 100-150MHz isn't worth such an increase in voltage, especially when it's past the recommended limit.
A shame, though. I was dreaming about 9x500, heh redface.gif
     
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post #5406 of 6462
My NB is 60 idle and 78c load! @ 1.40v which is stable at 480Mhz and with 2 crossfire cards frown.gif

Ive got a stable 480/1160 memory now but the heat of my system is killing my overclock really. My processor gets 85c with IntelBurnTest a bit too high for my taste.

Although the vcore is only 1.175v± fully stable at 3.6Ghz, I can easily go 3.8Ghz but its just too much for my small mATX casing and my Cooler Master N520 frown.gif

I've dropped my FSB to 444Mhz (3.56GHz Core clock) because it has no real use for me staying at 480Mhz FSB. The memory benchmarks give me about the same performance with 444Mhz FSB and stricter timings frown.gif

Oh well, At least I know the limit of my CPU/FSB now smile.gif Someday I might do some nice watercooling and see how it goes then. I'll drop a template later for other people if its of any help.
post #5407 of 6462
whoa. that is way too much vNB. dial that down to 1.28V and I bet it remains just as stable but with a lot less heat.

@Hyoketsu: 1.45V is chump change for that CPU. Don't be afraid to crank up the vCore until you hit the ceiling with temps. I've been giving my Wolfdale 1.6V for so long now I can't even remember when I started, and it's never been unstable nor has there been any sort of degradation. Intel specs apply to situations with dinky stock coolers!
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post #5408 of 6462
Quote:
Originally Posted by Marctraider View Post

My NB is 60 idle and 78c load! @ 1.40v which is stable at 480Mhz and with 2 crossfire cards frown.gif
Ive got a stable 480/1160 memory now but the heat of my system is killing my overclock really. My processor gets 85c with IntelBurnTest a bit too high for my taste.
Although the vcore is only 1.175v± fully stable at 3.6Ghz, I can easily go 3.8Ghz but its just too much for my small mATX casing and my Cooler Master N520 frown.gif
I've dropped my FSB to 444Mhz (3.56GHz Core clock) because it has no real use for me staying at 480Mhz FSB. The memory benchmarks give me about the same performance with 444Mhz FSB and stricter timings frown.gif
Oh well, At least I know the limit of my CPU/FSB now smile.gif Someday I might do some nice watercooling and see how it goes then. I'll drop a template later for other people if its of any help.

Wow that's too much both temp and voltage for a P45 dude :O I'm almost certain you'd get it stable with 1.30-1.36v max, depending on the amount of RAM you've got.
The P45 can easily hit high FSB with very low voltage, but needs a bit more when using more than 4GB RAM.
post #5409 of 6462
Woooo! Got my first flame!! biggrin.gifbiggrin.gifbiggrin.gif

Only 9 more rep to go before I can legally post in the for sale... w00t!
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post #5410 of 6462
Yeh I think it was stable with 1.32v or so but still the temps are way too high at that FSB. The ambient air in my room is often 23±C and with my very small case its hard to keep things cool. I dont understand why my CPU gets so hot though. At only 1.18v with 3.8GHz the first 2 cores idle at 55c and with prime it reaches and with IBT it reaches 85c. Thats still 20c below maximum tjunction but its just too much.

I use a N520 coolermaster which isnt the best but its definately not a bad cooler. I'm 100% positive its mounted properly with exactly the right amount of cooling paste. Its also very tightly mounted. I've demounted the cooler a few times with different amount of cooling paste, it has no effect at all. The temp are still the same somehow.

I did hear of certain early 45nm cpu's have unreliable temperature sensors, I'm not sure if this Q9450 is one of them. Even with stock voltages and clock speeds the cpu should be idle at 30-40c or something with all powersaving functions enabled but it still rises to 50±c with full fan speed and keeps stable at that.

One thing I'm absolutely certain about;

- The heatsink is perfectly mounted against the cpu with the proper cooling paste applied to it (No air bubbles and not too much paste here.
- The fan runs at high speeds without a problem and it doesn't really matter whether I open or close my casing. I've got a good airflow with 2 fans at the front, one at the side and 1 at the back, and my big coolermaster psu with a big fan.
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