I know that, that's why i'm asking, which one should i trust, because i can't the CPU working ot 465x8.5 with 1.4VTT. I just keep freezing and freezing in idle, no matter what i do! Please, help me.
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I know that, that's why i'm asking, which one should i trust, because i can't the CPU working ot 465x8.5 with 1.4VTT. I just keep freezing and freezing in idle, no matter what i do! Please, help me.
It should, but it does not. Actually, it's Prime-stable for more than 3 hours, at this time i'm running it at 1.4065, BIOS says it's 1.352, OCCT says 1.36. If i lower it or increase it, it just affect the stability in Prime(actually, 1.4125 is the max, what i was trying). And again, which value is real - 1.4VTT BIOS set, or BIOS Hardware Monitoring and Everest - 1.34. And can i lower VTT and set 67x for GTLREF or it's too much?
Being a Q6600, a GTL Ref of around 0.65x should give you optimal results. So reduce the 0.667x and increase the 0.635x.
Yep thats fine. I have given some other alternative settings like +10/-30/+10/-30 and others in a previous post so try some other combos too. When I use Vtt ~1.20v my e8400 likes +50/+10/+50/+10 for the GTL's.
Perhaps setting the appropriate vcore and Vtt, (probably around 1.4vcore & 1.3 - 1.4v Vtt for 4GHz) and using around 1.3 - 1.4 vNB (vMCH) then setting GTL's to around 0.75 - 0.85v should work. Leave your NB (MCH) GTL Ref around the 0.64x Vtt mark.
This depends on your Vtt, have a read through the thread and get an understanding of the relationship between the GTL's and Vtt (vFSB).
neither can really be trusted 100%, but either setting is below the absolute max intel spec. You can always check with a DMM look for the measure points or ask in your mobo thread for someone to show you where to measure it.
Sounds like you have one or more voltage settings too low, or your GTL's arent set up. However crashing/locking up on idle is usually only affecting people using LLC and from your vdrop it appears you are not using it. Make sure your vNB (vMCH) is set high enough to keep it stable, and make sure your ram is stable also.
If you cant find what setting is responsible for the instability, drop the speed until it is stable and work up from there again.
Also running 0.67x GTL ref with ~1.34 Vtt is fine you just need to keep your Vref under ~1.0v as the max. that setting would give you 0.897v which is fine.
First of all, i'm extremly thankfull, that you are trying to help!
So, here is what i've done so far:
vNB is set to 1.51 with GTLREF Auto. Increasing it to 1.53 don't solve the problem.
CPU voltage is set to 1.4065 as i sayd, but i figured out, that i just affect prime stability.
I've tried CPU PLL values from 1.52 to 1.66, no change at all, may be with lower setting it freezes "slower".
FSB Termination (or VTT) - from 1.20 to 1.42(right now), with 1.42 it's still working, but even with lower value sometimes it works for days before lockup.
This is all i have for the CPU.
My memory is PC8800 (1100Mhz) and while testing the cpu i'm using it at 1:1 - so no problem here.
The one think, that i noticed - 450x8.5 with vCPU 1.3725 1.5 CPU PLL and 1.2VTT i have now lockups. With same voltages 455x8.5 it freezes, so i need to increase VTT. So i think this is the critical voltage, but i'm still no much into it, safe range and etc. GTLREF set from 59x to 65x doesn't help too.
Sorry for my english.
:edit: Just froze at 1.42VTT too :confused: Trying 1.36VTT with 0.67x GTLREF
Hmm ok. Try using 1.3725 vcore, 1.22 Vtt, 0.67x GTL Ref, 1.55 vNB at 455 FSB. Also try advancing you ram skews to around 250 - 300ps if you have them.
Also, can you raise GTL Ref above 0.67x? I have seen some guys with C0 stepping 9550's needing around the 0.68x - 0.73x mark for 4GHz, but some also need around 1.42v load for stability at 4GHz.
Just to add my :2cents:. Looking at what he said about the whole days before locking up.. Mine does this if I have my NBv set to high. I can run it fine and then wam it will do something stupid like never boot to where I have to reset it to get it to boot. If I have my voltage on my nb set just right it never happens. My example I am refering to is in better detail,,, If I set my NBV to 1.34 this issue will happen.. If I leave it set to what I have it set to right now, 1.3v it never does this.. My :2cents:.
I'll try this too, it isn't impomssible. What about GTLREF on NB? Is there something to be aware of? I'm using it now with vNB 1.51 and 57x GTLREF.
For the NB GTL Ref, this is how it works out for me up to about 486fsb with my chip and board:
VTT X CPU GTL Ref = TREF divided by my NB Voltage = NB GTL.
So:
1.30vtt x 0.675 CPU/GTL = 0.8775 TREF Divided by 1.36 NB Voltage = 0.64522 = NB GTL of .645 to .650.
This has worked all the way up to 486fsb for me, testing 488fsb closer now but it seems it is doing OK there as well. Just thought I'd throw that in the mix.
Larry
With a quad and 4x2gb of memory you'll need lots of NB. I've been told that 1.6v is "safe" as long as you control the temps.
I'm testing 1.53 right now trying to stabilize 442x9 and I only have 2x2GB of memory.
(Luckily, this MB has an awesome heatsink on the NB and PWM chips.)
I had the DFI X48 LP LT DDR2 board, I ran 1.56v on the NB daily, I think even 1.6v is fine on that chipset as long as temps are ok.
Larry
with the x48 as long as u keep nb temps sane ( < 50c ) you can push all the voltage into it u want, but 1.6-1.65v and it becomes pretty frivolous since it just makes more heat and little gain. i ran 1.59v on mine air cooled for ages. I run 1.49v now cause tight Performance Level on top of highish FSB freq isn't very healthy for day to day use, generally ends up with memory errors or random software faults (ie windows search randomly couldnt find files on my system). I use PL 7 with 466MHz fsb and 1.49v vNB and 0.63x NB GTLREF and thats what mine likes at this freq.
um my vtt should be 1.38v in bios which gives an output voltage of 1.41v atthe sensor.
Make sure you do a cmos clear after flashing the bios. With my asus boards if i flash and dont clear cmos afterwards the real voltages change even when you use the same setting in bios as before. If you clear cmos, the voltage goes back to what it used to be for that setting.
Yeah the board is quarky that is for sure. It doesn weird things with latencies to if you don't really clear the cmos good after flashing.
I was wondering, is GTLref still playing as large a roll in i7 as it sometimes does in core 2? Haven't come across much info on that yet myself.
I thought that LLC was only for VCC and not for Vtt or other voltages? It makes no difference to voltages other than VCC on my board.
Asus boards do seem all over the place these days though, I think their QC has all but disappeared. I have seen many times now people setting the same voltages in bios and getting very different real voltage readings. Every time I flashed my P5Q-Deluxe I would get different real voltages when I set the same voltages in bios as I had before the flash.
I think they are cutting so many corners during manufacture there is no consistency anymore.