[Assassin48]

Originally Posted by 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.

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
i followed your tutorial and this is the progress, i think the last one is the highest with those timmings

7-7-7-21 11.312.jpg

7-7-7-21 10.546.jpg

7-7-7-21 9.312.jpg

7-7-7-21 8.375.jpg

7-7-7-21 8.234.jpg

[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]

Originally Posted by Assassin48

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 on the ram here is my results so far

8-8-7-21 11.125.jpg

8-8-7-21 10.468.jpg

9-8-8-24 9.687.jpg

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