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GUYS, how much nbv needs someone with X38-DQ6 @ 450fsb + 1200 8gb ramQuote:
Originally Posted by papatsonis
Ihave a friend with maximus formula X38 and he needs crazy nbvolts to run his system stable @ much lower clocks - something like 1.69-1.73. But the thing is that he runs his system with these crazy volts for over 2 years now.
My guess is that you can safely run with up to 1.70nbv IF you can keep nb cool.
you dreaming if you think to see a x38-dq6 runnin 4 stix @ that speedQuote:
Originally Posted by greg.m
i couldnt get mine past 850:ROTF: with 4 stix of d9 nevermind 2 gb stix
1.7vis fine as long as temps are good
i was thankfull the pos d6q died after a few weeks:)
@ Papatsonis. Your way too lucky you can run vmch-1.625 @ 445/1187 with 8gb:shocked: and your X38-DQ6Quote:
Originally Posted by zsamz_
no man.. its not dreaming... right now i have finished stability tests(9hrs Linx64 - 7200mb) for 445 fsb/1.2vtt , and 8gb gskill 8800pi@ 1187 PL6 with 1.525 VMCH , just the chipset scales heavily non linear.. and for 450 fsb i need 1.625 VMCH (havent test all possible gtlref settings for 450 though)
Quote:
Originally Posted by zsamz_
Right now im running my x48 grunny @ 500x9 @ 1200 and i need 1.77nbv to achieve crysis wars stability:shocked::shocked:
If i remember well 450@4050@1200pl6 needs something like 1.40 but... i cant go back and try it because it goes only up now (my grunny):rofl::rofl:Quote:
Originally Posted by papatsonis
most common gtlref are 0.62(works for me)-0.63 cpu and 0.67 nb for our x38-x48Quote:
Originally Posted by papatsonis
forgot to tell , with Turbo mode, not Extreme (for extreme need ~0.1+ volt additional the x38) , extreme saves about 2.5ms in latency and give a small boost in read , but doesn't worth the heat...
1.65 is alot of juiceQuote:
Originally Posted by greg.m
Nice sticks you have there:) Mine g.skill 1200 pi cant do much higher than 1240:mad:Quote:
Originally Posted by papatsonis
neither mine (pi 8800) can go above 1220-1230 , till there are stable with minimum voltage from dq6 (1.89) but almost dont scale at all, had tried till 2.05 and saw increasing errors after 1.98v
Thats gooood - for you - i paid probably the double for pi 9600 :shakes:Quote:
Originally Posted by papatsonis
Quote:
Originally Posted by Slag
it seems they have identical behavior (at least @4ghz.. 1.216 here ;) )
I haven't tried to find vcore needed for 4GHz, but for 466x9=4.194GHz I need 1.25v, and for 480x9=4.32GHz, 1.3125v is needed. My vid is 1.2v but vcore needed is likely to be very similar judging by the way it scales. I'll have a stab later, just busy getting 4.4GHz stable with just 1.35v :cool:
Guys, today I removed my CPU and I noticed 2 pads on the CPU didn't have any pin marks, is that normal? I was getting some slow downs in prime95 so maybe that's related?
I marked them on this picture, they are the 14th and 15th pads from the right? what does these 2 pads are responsible for?
http://i47.tinypic.com/sgqpea.jpg
Small update :)
wPrime @ 4662 MHz (validation)
http://www.imagesforme.com/thumb/thumb_eb8328ba.jpg
^memory time sucks.
Yes, it really seems they have identical behavior! :DQuote:
Originally Posted by papatsonis
I'm running it now @ 4Ghz with 4GB (2x2) of OCZ PC2 8500 Platinum Edition @ 1:1 (DDR2 891) with:
- timings 4-4-4-12,
- strap 333/667,
- Performance Level 7
with only 1.21VCore, 1.20VTT, 1.40V on MCH and 1.85V on DRAM.
Everest cache and memory benchmark average marks in these values:
- Read: 9045 MB/s
- Write: 9465 MB/s
- Copy: 8520 MB/s
- Latency: 55.0 ns
I've done accurate fine tuning on GTL+ and memory timings to gain stability with these low voltages and i think that i'll be able to handle this overclock even on summer... :up:
DFI boards are so tricky to be fine tuned but when you have time and persistence it's a satisfactory goal! :yepp:
Bye
nice!! awesome vMCH , ONLY 1.41!!!, either my X38 chipset , or the DQ6, cant do these speeds at such low voltage , or i miss some magical setting :/ , my stable are 445/1187 PL6 with 1.525 vMCH :/ , ive done extensive testing on all possible GTL adjustments (in fact only GTLRef 1 , cause the oher GTL except normal, refuses to boot)with no practical gain :( . Relaxing PL, didnt bring any substancial gain (perhaps, 0.025 vmch less - so no point) , tried to relax the x38, testing with 4gb ram only, neither that worked..
my q9650 is at 4.095Ghz - 455*9 @ 1.25v - ive got an asus p5q deluxe and 2*2gb corsair dominator 1066 ram - my cpu is 20 loops minx stable and 6hours p95 stable with cpu at 4.095 and ram at 1092mhz - all voltages have obviosly been increased...
for some reason when i got over 455 even by 1mhz it becomes unstable in games BSOD's on me an restarts my pc when running linx!!!! what u recon i need to increase to get it stable at 460mhz???
vcore - 1.256v gtl refs 0.660 + 0.660
cpu pll - 1.56v
vtt - 1.26v
vram - 2.14v
vNb - 1.24v
any help guys??
cheers
Since a lot of you are pushing your Q9650's for quite awhile now, what's the voltage you guys have been able to use consistently without getting overclock degradation? (on air).
Has anyone used something like 1.45v over long periods of time?
me...almost a year at 1,392 cpuz...benched for months on 1,56 high VTT and PLL...still passes same tests...Quote:
Originally Posted by Falkentyne
cheers
Sergio
Quote:
Originally Posted by Falkentyne
Low temps (everywhere - cpu, nb, mosfets etc.) is the key.
+1 for that :up:Quote:
Originally Posted by greg.m
I would trying raising the NB some first, but you may need some more vcore also. Are those gtls listed cpu and nb or just cpu, at those speeds I ran mine at 0.635 for both cpu gtls and auto for nb gtl.Quote:
Originally Posted by grishenko45