My runs 920 w/UD5

[Assassin48]

Still trying to figure out this i7 setup, so ill post more runs with different benchmarks
Setup:
I7 902 D0 A batch on a small 120 rad
UD5
3gb PI Blacks
5770
750tx Corsair PSU

my runs so far
4.66ghz @ 1.5v in bios but 1.47 in CPU-Z with LLC enabled
974

a little better
975

and this one so far for some hwbot points :)
976

3DMark 03
977
will continue some more runs, i have a dice pot but it wont work with i7 at holding temps.

[DrNip]

Nice 920 you have there.

[Neuromancer]

Wow. 223 out of the box eh... im jealous :)

[Kal-EL]

What sticks yah running?

[Witchdoctor]

Is that the new version ???? I think 1.6

my EX-58 hit the wall at 222 .........

Nice prime runs ......

[punx223]

Is that the new version ???? I think 1.6

my EX-58 hit the wall at 222 .........

Nice prime runs ......

theres a pcie SMD mod that will net you over 230 if you need it

[Witchdoctor]

Thanks for the tip bro...

but I got rid of it already....

3x SLI EvGA on the way .... couldn't afford the Classy ..........:shock:

But the last owner said 235 to 240 is doable on it so i am hoping for the latter ....

Hoping to be up and running by months end......

[Assassin48]

I kind of cheated on the BCLK, i booted @ 222 and just bumped it to 223 with SetFSB so i could run 4.7

how can i tell what sticks i have ?
I'm slowly learning how to overclock ram so its not the best.

[Neuromancer]

Thanks for the tip bro...

but I got rid of it already....

3x SLI EvGA on the way .... couldn't afford the Classy ..........:shock:

But the last owner said 235 to 240 is doable on it so i am hoping for the latter ....

Hoping to be up and running by months end......


WOW If you figure out how let me know. I am stuck at 222. 223 is insta-freeze.


I kind of cheated on the BCLK, i booted @ 222 and just bumped it to 223 with SetFSB so i could run 4.7

how can i tell what sticks i have ?
I'm slowly learning how to overclock ram so its not the best.

It should say right on the side of the sticks :) You can google the model to find out the ICs on them, if you are scared to remove the heatspreaders. I bought cheap ram, took the heatspreader off found the IC on them and from there was able to google and find out what types of latencies and voltages it needs to blow past 2000 MHZ :)

[Assassin48]

Upping the PCI-E always helps for 222 i need PCIE @ 102

this is the only info i could find but its 6gb instead of 3gb
http://www.xtremesystems.org/forums/showthread.php?t=212624

[Neuromancer]

1600 or 2000 MHZ?

[Assassin48]

mine are rated for 1600 8-8-8-21 1T

[Neuromancer]

CAn't find anything exact. But based on the binning/specs I would assume
Micron D9JNM

The PCB does not appear to be as robust on the Pi series, so not sure how high voltage will effect them. But it is the same ICs I have on my patriot ELK kit, I have run up to almost 1800 7-7-7 with 1.85 volts and I just juiced it to 1.9 to get 2100+ at 9-9-9 Probably did not need that much though :)

I overvolt since they stay real cool anyway and I have not had enough time on this rig to really work out the ideal voltages for every setting. I do know that I have crashed on more than one occasion because of not enough Vdimm so I just set it a little high to start with.

Also if your board lets you set MCH strap, these things just LOVE tight timings :)

[Assassin48]

how high can i push voltage on ram with the i7 ?

I read something about .5 from some voltage

EDIT*
.5 from QPI/VTT voltage

so i have my api @ 1.34 i can push it to 1.8v right ?

[DrNip]

Keep your RAM voltage within .5 of your VTT. Yours I believe is like you posted, QPI/VTT Voltage. Keep it within .5 of that. Some mobos won't allow for you to go outside this safe range, I don't think yours will so be careful. I have pushed my RAM upwards of 1.85v. I have some Hyper Elpida's. All depends on the RAM and cooling. Mine was on air with a 120mmx38mm San Ace fan blowing across them.

http://i269.photobucket.com/albums/jj55/travisjcottrell/th_IMG_4500.jpg (http://i269.photobucket.com/albums/jj55/travisjcottrell/IMG_4500.jpg)

So if you are at 1.85v RAM your VTT needs to be 1.35v or higher foe example.

[Assassin48]

i bumped the Ram voltage to 1.7 in bios
i went from 10-12-12 to 9-10-10-31 1t going to keep pushing it

983

[Neuromancer]

At those speeds 7-7-7-21- (50-70 TRFC cant remember off hand) - 1T I run about 1.825 through mine I have a 120x38mm also laying across the dimms to help cool the whole area of motherboard :) . I need high VTT for stability though on my setup. If you can run that BCLK with less than 1.35 volts SWEET!!!

Not sure how your board sets it up For me 1.35 VTT is +250mv I run nothing less than +300 lol but I am a juice pig ;)

[Assassin48]

I have no idea what some of options in the bios do, ill keep pushing to see if i can get some better scores

[Assassin48]

Well i made up my mind that i need to get some new ram, and maybe a new cpu while i'm at it.
Any suggestions ?

Also does anyone know the voltage Points for the UD5 ?

[DrNip]

What's wrong with your CPU? If you are looking for RAM your best bet is to pay a lil more. I would look for some DD3 2000 cas 8 RAM if I were you. Preferably 6 GB's.

[Assassin48]

What's wrong with your CPU? If you are looking for RAM your best bet is to pay a lil more. I would look for some DD3 2000 cas 8 RAM if I were you. Preferably 6 GB's.

Nothing wrong but i have had this cpu for a long time and i want a change, looking at the w3570 or w3580

as for ram i seen some Kingston HyperX ram 2000 cas 9 on sale on xs

[Neuromancer]

There a reason you need new memory? X58 has limited memory options due to the uncore ratio.


Best bet for OCing is to sit down and just ruin your OS install a couple of times playing with the memory. Don't worry about your CPU OC for now, play with your ram. Find your bootable 7-7-7 frequency. I use the standard 7-7-7-21 (add first three to get 4th) you can get more performance by lowering the TRAS (the 4th number) I learned back on DDR to do it my way, and have not played around much with lowering it on newer platforms.

If your BIOS has a profile saver good time to use it. Unstable memory clocks have always led to CMOS reset for me.

Drop CPU multi down to x15
So start at stock with 1066 drop uncore to twice mem speed. (16x if using 1066 mem divider)
Set it to 1.7 volts Vdimm +150mv VTT (1.25v). and set 7-7-7-21 and see if it boots. If it does, up the QPI BUS +10 MHz, see if it boots rinse and repeat.

When it no longer boots. (Im not talking load windows... see if it posts) up the vdimm and VTT the same amount (one bump which ever is higher match it with the other)

+10 MHz again and again till it will not Post.


Now, find your max voltage you want to use, when it no longer post, back down 10 MHz. See if it boots windows. (it probably wont) so back it down 5 more repeat till windows loads, than 5 more for good measure :). You can then stress the memory subsystem with prime Blend. IT will probably fail, so drop it in 5 mhz increments till you get stable. If 7-7-7 leaves your mem too slow for something... try 8-8-8.

Thats how you find max at whatever timings you want. at 9CAS you should be pumping past 2000 MHz.

When finding max OC on items you have to remove other components from the equation.

Nothing wrong with getting a new chip, god forbid I tell someone not to flip new hardware LOL but use the 920 to learn on at least spend a couple of weeks getting to know the platform :)



Really looking at all the reviews I can find (none on your sticks exactly) thye all seem to stop around 1800 MHz... does not mean they have to though ;) They said my ram stops at 1800 too lol


If you are looking for a 24/7 stable all around system, by all means spend more money on ram with something you KNOW, can do XXXX MHz at X-X-X timings and X,XX volts :) But for 24/7 you dont need high speed memory, the triple channel alone adds 50% to the bandwidth of DDR3 meaning slower tighter ram is more effective than faster looser :)

[Assassin48]

Thanks Neuromancer (http://www.overclockaholics.com/forums/member.php?u=87)
i followed your tutorial and this is the progress, i think the last one is the highest with those timmings

985

986

987

988

989

[Neuromancer]

Much better :) try running Prime95 on BLEND, to make sure the entire memory subsystem is "bench stable" 15-30 minutes is all I ever use. Usually less. (only has to stable long enough for a wprime 1024, or spi32M :) If you are looking for total system stability thn run prime95 for 8-12 hours. (keep an eye on temps of course, CPU, VRM and chipset :) )

You are approaching 200 BCLK, so if you are still unstable you have 2 options, give it a little more QPI PLL voltage or drop your BCLK and try a higher MEM multi :) (remember though that uncore is going to raise its multi as well, so a little extra VTT might be needed if you find yourself getting unstable).

Take note of the voltages and speed you have set (specifically VTT, Vdimm and multis.) this way when you start concentrating on just BCLK or just CPU speed (pretty closely tied on a 920 with good cooling) you will already know the limits of your memory.

Make sure to run mem tests at 8-8-8 and 9-9-9 timings too, so you can find your max mem speeds for other component clocking you will do later....

Like Max uncore :) Use your multipliers to clock this up as much as you can, then fine tune with BCLK



Next work on BCLK and then work on CPU.

Once you know what everything can do on its own, you can figure out how to put it all together :)

Just don't get frustrated and sell off something until you are sure it is the limit. If you have clocked AMD at all over the last few years, i7 is just like it. Getting memory and IMC stable is paramount if you do not have a high CPU multi to take advantage of :)

(Personally I would rather have a lower multi, cheaper chip than a higher multi 2-4 times as expensive chip to start with anyday. It is much more satisfying to get a 75% OC on a $200 dollar chip than it is to get higher speeds, but a smaller percentage on a chip that costs 2-6 times more :) You also get a better understanding of the architecture knowing that every component is going to be pushed to its limits :) ) JMHO

[Assassin48]

ok will try that an update this post with the results

[DrNip]

Nothing wrong but i have had this cpu for a long time and i want a change, looking at the w3570 or w3580

as for ram i seen some Kingston HyperX ram 2000 cas 9 on sale on xs

Muah but there cas 9. That won't get you where you need to go.

[Assassin48]

After listening to Neuromancer (http://www.overclockaholics.com/forums/member.php?u=87) on the ram here is my results so far

990

991

992

So to get this right 996 x 2 = 1992mhz is what its running at right ?.

I really appreciate all the help so far :)

[Kal-EL]

Yes

[Assassin48]

i need some help understanding some of these settings in the bios for the UD5 F9 Bios

CPU Clock Drive-
PCI Express Clock Drive-
CPU Clock Skew-
IOH Clock Skew-

Need some help with these voltages
IOH Core-
ICH I/O -
ICH Core-

[Neuromancer]

clock skew is used to help fix clocktimings that are out of whack due to overclocking. Sometimes helps to delay CPU skew a bump or to to get stability at bleeding edge clocks.


IOH Core and ICH I/O Core really help when running 3D benchmarks. Many say it helps with crossfire/SLI, I found it to be really helpful pushing my 4890 past 1000 MHz Core IOH core also helps with high overclocks (chipset voltage)

ICH I/O not really sure what it is, but it helps boosting it. Mine is called IOH ICH I/O vcore. Technically ICH is 'I/O controller hub'. So probably something to do with QPI.

ICH core is southbridge on my board, I usually bump it up a bit but not too much 1.175 to 1.2 again the acronym does not fit the purpose, but if you have been delving into BIOS for any period of time, its really obvious that most mobo manufacturers have their own ideas on what to call stuff :)


Google can help you with clock drive, apparently lowering the settings can help stability. Judging from what I read it smells reminiscent of GTL REF

[Chicken Patty]

Good job on the benches Juan, I'm right behind ya on Wprime, still gotta figure out what the setup wants to be stable at 223. I can do 222 perfectly fine. I just have to tweak it a bit more thats all :)

[Assassin48]

thanks guys for the help but i just cant seem to put everything together for some reason.

[Chicken Patty]

thanks guys for the help but i just cant seem to put everything together for some reason.
Have you farted on the CPU? Please tell me you have!:taunt:

[Neuromancer]

thanks guys for the help but i just cant seem to put everything together for some reason.:taunt:

High mem speed = high uncore = high QPI speed = lower CPU top speed on a multi limited CPU which is why most setups have serious BCLK limitations

Same with tighter timings. It puts more stress on an already limited uncore top speed.


For 220 Benchable on my rig 20 multi (21x with turbo), 1066 Mem divider (8x) 16X uncore 4.8GT/s QPI (18x) and 4890 OCed to snot and beyond

(this holds the mem*2=uncore uncore 8:9 ratio to QPI) I noticed my uncore falls down around 4300 MHz so going to start working with the 6X mem multi dropping the uncore to 12X to hopefully pass 222 BCLK

vcore 1.5+
Vdimm 1.85 (~ 1780 MHZ 7-7-7-1T)
CPU PLL 1.65 or 1.85 either seems to work better than 1.8, needs more testing
VTT + 400 (1.5-1.55)
QPI PLL 1.4v
IOH Core (1.1v stocks) 1.35-1.4
IOH ICH I/O core (1.5v stock) 1.625-1.7 (More is not always better)
ICH core (1.05 stock) 1.2


The offest settings, you should try..
Clock drive both at 700 mv
CPU Skew IF NEEDED -100ps

All CPUs are different. So what works for one does not work for another. All these voltages are way out of spec, but necessary to make the big jump to 4.6+ GHz for me

If you have an MCH strap on your board, you can try adjusting it too, it controls the timings for the memory subsystem. Lower strap tighter timing, higher strap more OCing.

Important things to remember about i7.

Memory is not just sticks of RAM. Treat it as one entity from the sticks to the CPU to the chipset. A fail point does not necessarily mean your RAM sucks. High clocks can be uncore or QPI limited. Uncore/QPI voltage is supplied by the chipset NOT the CPU. ( A little trick intel pulled to get the i7 arch under a certain power rating. Estimates are as high as 40-50W of power for an OCed i7 being supplied by the chipset)

QPI/Unore is most peoples limiting factor. P55 has a weaker/looser memory subsystem, they can drive mem speeds WAY up. DO NOT look at p55 mem clocks for X58, big difference in capability. P55 faster and looser, also MUCH less effective ;)


A synchronized system will perform more efficiently and throw less heat than one out on the bleeding edge in one or two areas.

200 BCLK is the max stable for most people as it pushes the QPI past 8 GT/s. It requires lots of volts and cool temps to get it past that with much stability. Anything past that is bonus

If you want to swap out anything, get a new CPU, but look at max top speed you want and get a multi accordingly. 25X multi I think is a good place to start if you intend to go DIce in the future or chill water.

Guys with more expensive chips have a higher "easy OC" they will struggle with the upper limits of their chips just as much as you :ohcrap: Upgrading just moves the point of frustration to a higher level (and not always a higher level, I do not see much difference around the forums between a 920/950 :ohcrap:)

If you are getting frustrated, walk away.

Drop down to 200 BCLK and enjoy the CPU for a while playing some video games or something :) :morpheus:

Don't think there is much else I can help yah with. Hope this at least gets you somewhere :)

[Chicken Patty]

I got some reading to do :( :laugh: