What were the two settings you found to provide more stability?
Printable View
What were the two settings you found to provide more stability?
Were they the DDR references? I'm intruiged too, I'm still hovering around 489x9 so I'm definitely interested :)
CPU Skew = 100ps and NB Skew = Normal, nothing else will even run as long if it even posts as these settings as I have tried many times before.
I'm messing with Simp's GTL theory but not sure if its 100% accurate as it seems back to front as the 1 and 3 should be the higher number on our Quads not 0 and 2 and I'm just as stable settings them to CPU 40/40/40/40 - NB 40 or if higher FSB CPU 50/50/50/50 - NB 50.
I am 100% stable at 495% but ain't happy its 1.45v NB and 1.45V VTT (ain't sure if VTT can be lowered but NB cannot), because this does not give me much headroom for a nice 24/7 500FSB if I can reach it.
Yes 333 + 1:1 + Moderate + 10 , for some reason its always more stable then 400 for me.
Yeah, I've noticed the same thing, 333mhz seems to be the most stable setting. Everybody seems to be running with atleast a 100ps difference in NB and CPU skews, but if I don't run the skews at the same delay, I won't POST most of the time, and if it does, it instantly freezes while loading windows. A bit strange. Seems like we really need 50ps, 100ps, 150ps, etc settings for fine tuning. The gigabyte P45 series has it, I'm fairly certain it has atleast _something_ to do with people getting better results with quads on that board.
If wonder how hard it would be to mod the bios to allow for setting the skews with 50ps increments. Maybe it isn't even possible at all, due to the hardware, I'm not sure.
I would guess the Skews are built into the Chipset's so its only the Bios that lack the increments.
I tried lots of variables but 200 (tried them all) + Normal (tried them all) is not stable at this high FSB so wonder if 50 + Normal would be better.
I was wondering pretty much the same thing. The skews have such a drastic effect it would make sense to implement it if possible. I'm gonna drop a post in the ROG thread, maybe someone could listen there....
Ok, here's something to mess with ya heads...
9x435 = CRASH DEATH SHUTDOWN BLUUAGAGARGHH!!!
8x488 = Prime Prime Prime!!!
Apparently either my CPU has stopped playing games or this board has a issue with slow FSB and high clock speed...lol
I'll get some screenies once I get a few hours under my belt.
Yeah right.
This kup kid runs prime95 for hours with PLL=1.72v / VTT=1.58v / NB=1.75v and now he complains that his system is not stable anymore?
Of course you are going to degrade some component with those volts, and your system will become random.
You just ruined your system, this is not asus fault.
http://img707.imageshack.us/img707/6600/520mhz5hour.jpg
I'll be glad when my Gigabyte has arrived. I've just about had enough of this board. Tested for 5 hours at 500x8.5 blend last night, rebooted, and BSOD. I just don't get it anymore, skews might be a big help, but this amount of inconsistency is enough to drive anyone mad with a quad. This time, each time I changed settings I cleared CMOS and entered exactly the same settings with single adjustments and got to the above point. But the reboot followed by BSOD before login just about took the biscuit. It's a huge shame this board has a lot of great features that I'll miss, but it's also wasted a lot of my time and I will probably sell it.
Dude will you get off my back. I've not degraded anything. If anything the board and chip have improved because this wall existed long before I pushed those volts and clock.
I'm not some n00b overclocker, I've been overclocking for 9years now, with everything from extreme air cooling to phase change, peltiers, watercooling and volt mods. I've been running with a Q6600 or higher since just after they came out...I know what I'm doing...
The symptoms I'm experiencing are more than likely exactly as Influence has stated, Asus hardware being haunted by little Asus gremlins.
The gremlins were heat related...whack a fan on the CPU power circuitry area and it's fine, take it off and reboot/hard shutdown after a few seconds. Time to strip the board and reapply everything.
EDIT: Odd though that a naked P5Q Pro (only one heatsink on CPU power area) could run it 24/7 Priming @ the same settings with no fans...
Finished redoing the stock heatsinks and I think I've shaved off about 10*c off the PWM temp. Just giving it a test now but so far no random shutdowns...
BAM...shutdown. It seems to be when the PWM hits 50*c it shuts down. :( But over 1.55v vCore really bumps up the temps on it, 34*c atm with 1.55v, 1.575 sores up to 50*c. :(
If I thought redoing TIM would sort mines I would (did all my other Mobos but they ran hot as NForce's).
My Mobo was not one of early ones with badly fitted Heatpipe, my temps are all low, esp PWM's as them little rubber/silicon type strips are crap IMO.
That's not to say they could not be made better as Intel unlike Nvidia do not like heat but do run cooler.
I've gave up on 495+FSB so dropped back to 475FSB on low voltages (1.25v NB+VTT), simply ain't worth the massive increase in all voltages.
I think a CPU Skew of 50ps would have got 495FSB 100% stable and possibly onto 500FSB.
Ok, random question. What third party cooling can I use on the M2F? I couldn't find anything on the Thermalright site but I've got some parts left over from my Rampage Formula (oh how I miss it...) that I could move over to the M2F to cool it better?
Has anyone modded theirs with extra/after market cooling?
I know where you're coming from kup. During the summer I ran my MIIF with a household fan pointed into the case, this prevented it from crashing as often, but it was still unstable.
There's a lot of choice out there in terms of after market cooling, the route I took was to remove the entire heatsink, and put all my own aftermarket cooling on it. I used a pair of enzotech copper mosfet sinks, waterblocks on the CPU and NB, and just some block from another mobo for the SB. The difference I noticed was that the SB gets a little hotter as a result of not being 'connected' with the rest of the board, but the NB is much much cooler (NB doesn't go over 38°C on 1.5v), and the mosfets showed a small improvement. The whole Asus heatsink is a good concept in terms of spreading the heat around the board, but to get all those areas sitting flush with the crucial components it would have to be better engineered. It has been very hit & miss in terms of effectiveness from what I've read.
After realising I wasn't running the 64-bit version of prime for about a week (clicked the wrong d/l link for an update), and getting pretty near stable with that, I did a run at 490x9 with with 64-bit version last night (after 32-bit prime crashed out and I didn't reboot), and for the first time, I'm also 490x9 stable! It seems lowering the VTT to 1.33v could have been key to getting this far, but the weird display hangs I got with the 32-bit version weren't helping much. PWM temps seem to be lower as a result too.
Here's a shot of it still going - I'm scared to reboot because I've got that horrible feeling it'll not be stable afterwards, but will keep you updated if it has in fact helped :)
http://i194.photobucket.com/albums/z...90x9stable.jpg
What are you cooling that small section to the left of the northbridge with? The long black section of the boards cooling stock cooling. Do you reckon you could link me to somewhere to the cooling you've used?
http://www.xtremesystems.org/forums/...postcount=1298
There's a few pics.
As you can probably see, I'm not cooling to the left of the NB as I don't really think there's a need for it, I think more of the heatsink assembly covering that area is just for show and has made absolutely no difference in terms of stability. There doesn't seems to be any excess heat from any of the components in that area either, and you can probably spot the white, taped up temp sensor, which doesn't report any high temps so I would assume it's safe.
I think your mosfets will definitely need better cooling with those higher CPU volts, my current setup wasn't nearly enough with my old Q6600 at anything over 1.475v so I would assume it would be similar for you. The 45nm CPU obviously uses lower volts and puts less strain on that area of the board, but I'm considering getting a pair of blocks and adding it to the loop just to rule those out. There's some nice, chunky thermalright mosfet sinks available if you fancied going down that route which if mounted well, should improve things a lot more for you.
Yes that area to the left is for show, the chips bellow it do not get/or need cooler.
As usual, I spoke too soon :mad:
Not long after it failed at 4096K (~9 hours), so maybe a little bump in ram or NB voltage could have helped, but after leaving it running for the day, it failed at 96k on the second run whilst only 3 cores were running. As I'm so close to getting stable, I'm giving it another try with a notch in NB to 1.471v, and 1.89 on the RAM. CPU GTLs were set to 10,-45,10,-45.
0,45,0,45 gave a BSOD on login so I think I could actually be getting somewhere with a 50-55mv gap in the CPU GTLs, but with such a long time between tests it gets really finnicky . And this board is probably just playing silly buggers with me again :(
Had a missed delivery though, might be my UD3P from Belgium... I see a silver lining
We have an ANUS support forum at FdL now .. so if you have something to tell .. i will translate it and post it over there ;)
http://www.hardwareluxx.de/community...play.php?f=248
Tell them there Mobos suck cawk, so does their support :P
You see the news the other day, Asus are going fabless with their Mobo's no longer made by their sole contractor.