hey guys jay here....

jayfunk

jayfunk

jayfunk

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3 Jul 2009
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hey everyone jay here in canada!! sure hope someone will help me out here...
im looking for someone else with a ex58-ud5 AND an i7 965 and im trying to find some 4.2 settings with hyperthreading ON. ive tried and tried but can't seem to get it Prime stable. from what ive seen it looks like the vcore has to be 1.5 at least but i think im wrong and that something else is missing that ive overlooked. im able to get 4.0 with HT on and 4.35 with HT off.
you have no idea how much id appreciate some help here thanks so much.

ps. im the process of moving and dont have my notes with me so i cant really give you any old stable settings. cheers
 
What cooling system, and what temperatures?

The standard advice for owners of these cpus is to try higher bsck with a lower multiplier, but you've not really given us anything to go on here
 
Hi And welcome.

I would say most people on here with x58 are UD5 users, if you use the serach you will find loads and loads of info them. If your chip is D0 1.5 vcore seems to much for 4.2. Whats your load temps at clock? what cooler you using?
 
hey guys!!! thanks sooo much!!!
i have a Coolit boreas cooler temps are ok in the 70's.
it is a c0 i7 and i was hoping to get some bios at 4.2 HT from other 965 users...
191 bclk is the highest i can go cuz qpi speed gets over 7 and is unstable.
i have 1600 corsair ram
ive tried EVERYTHING and it seems like vcore and qpivtt need to be at least 1.475
ive tried upping iohcore but that doesnt really help
ive tried upping pcie but that doesnt really help
1.64 dram seems like the sweetspot for all settings
load line enabled, uncore = 2x ram no more
seems to work with most things on auto
around 40 minutes PRime is the best ive gotten but thats with a vcore of 1.5
i think theres something im missing
ive tried upping tras and the other ram settings but that doesnt do much

what else would yall like to know
THANKS SOOO MUCH!!!!!!!!
 
Explain this:
191 bclk is the highest i can go cuz qpi speed gets over 7 and is unstable.
please

Other peoples stable settings will not be stable for you, copy and paste does not work here. How does 150 bsck and higher multiplier go?

It would be appreciated if you STOP SHOUTING as well
 
thanks for the reply and sorry about the "shouting" ive never heard that before
my lowest qpi link multi is x36 ........so 200 x 36 = 7.2 and ive read that anything over 7 gets unstable.
i just wanted to see if i was on the right track and to see what other people have done or if there was anything ive missed.
as for higher bclks they are better with slightly lower vcore and temps as opposed to higher cpu multis which seem to want more vcore
my max bclk with HT on is 175 at 4.0
im trying ioh core of 1.32 now and here are my specs
thanks so much for your help

i7 965 c0
gigabyte ex58-ud5
gtx280 sli
3 gig corsair 1600 ram
windows xp home
coolit boreas cooler with antec 1200 case
silverstone 1000watt psu
 
Remember to much voltage can cause instability to mate, have you tried just using 1.160v IOH?

1.32v seems a little high tbh..

I don't think there are many 965 users on this forum, I personally think that the 965EE is a complete waste of money, if I were you, I would sell that chip on and go buy the D0 stepping 920, or 950..
 
heres what ive got...

cpu enhanced halt state.... enabled
c3/c6/c7 state support ..... enabled
cpu thermal monitor.......... enabled
cpu eist function............. disabled
virtualization.................... disabled
bidirectional.................... enabled

just ran 7:30 minutes
21x200 = 4.2
qpi = x36 = 7.2
ht on turbo off
mem = x8 = 1600
uncore = x16

vcore = 1.4625
qpivtt = 1.455
ioh = 1.32 on auto it said 1.30
dram = 1.64
all else set manual to auto settings

going to try
vcore = 1.46875
qpivtt = 1.455
ioh = 1.34

any other suggestions would be greatly appreciated
and say hi to my buddy james in wales for me if you see him :D
 
hahahahha awesome!!
hey bud.... based on those settings is there anything that you would change?
maybe for those power saving functions or maybe voltages?
cheers yall
sure wish i could buy you all a pint or two to say thanks :D
 
DavyBoy said:
I would disable this.
Click to expand...

yeah disable that. All voltages seem excessive to me. If you cant get a 965 to 4.2Ghz I'd sell it and get a D0 920. Disable all the power saving stuff. Also change the CPU PLL to 1.3v, might make it more stable (thanks DavyBoy). Make sure that your memory isnt what is making it unstable. underclock and loosen the timings on your ram before you overclock the cpu. you can tighten it all up after you get the cpu stable
 
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on auto the cpupll wants to be 1.8 so you want me to try 1.3? that sounds strange but ok ill give it a try and ill disable the c3/c6/c7 support.
 
I use 1.300v for CPU PLL, I read on evga forums that lowering this can help with stability.

CPU PLL VCore (default: 1.800V, spec range: 1.65V-1.89V)
What it does:

Keeps CPU clock in-sync with bclk.

When to raise CPU PLL VCore:

* May help with stability while increasing the bclk or CPU multiplier.(or may make it worse)
* May help with stability past 210 bclk if you observe that during runtime the QPI Link (found in E-Leet) bounces too much.
* Not a commonly raised. May actually cause instability. Test this variable alone.

You know CPU PLL VCore s too high when:

* Its possible you could actually gain stability by lowering this.

http://www.evga.com/forums/tm.asp?m=100494809&mpage=1&key

Worth having a read of that voltage guide, it's directed more towards EVGA X58 users, but it still has some useful tips.
 
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I have never played with CPU clock skew, I don't even know what they do!!!

As for needing 1.495v for 4.2GHz, I really don't know, I've never had a C0 chip, they do require more voltage though, so this could very well be the case.

I wouldn't like to use those kind of voltages for 24/7 use personally..
 
played with the cpu skew on my Q9550 mm QTL voltage i think, didn't help me but a lot of higher clocks were got using it!

i would hope you could get 4.2 stable with a 965, if your temps are only in the 70's bump up Vcore a bit, to us DO owners 1.495 seems like an insane voltage thats only because most of us don't run over 1.3 for our 24/7 clock.

you have an unlocked multi? try different blk settings and rations against the multi.
try lowering the multi and increasing blk i would expect that board to be able to go to 210...
without actually having played with the board theres not much else i can suggest :(

i have mine set at 200 x 21 and it seems to be a sweet spot for me.
 
jayfunk said:
i was wondering if anyone tweaks the cpu and ioh skews??
Click to expand...

CPU skew set to 100ps can help with stability and one of my engineers has just shouted over that it could also enable you to use a lower vcore.(i'm gonna try it.)

its got something to do with the internal clocks and how they sequence with each other.
 
Gaidin109 said:
CPU skew set to 100ps can help with stability and one of my engineers has just shouted over that it could also enable you to use a lower vcore.(i'm gonna try it.)

its got something to do with the internal clocks and how they sequence with each other.
Click to expand...



Interesting stuff Gaidin, I was suggested by a user of another forum to set CPU Clock Skew to 100ps, but I never tried because I had no idea what it did.

I guess it can't harm to try it out.

If it might help get lower Vcore then it is definitely worth trying.

Let me know how you get on mate.
 
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