Overclock.net › Forums › Components › Memory › Samsung Miracle Memory Club
New Posts  All Forums:Forum Nav:

Samsung Miracle Memory Club - Page 20

post #191 of 1055
Quote:
Originally Posted by kevindd992002 View Post

Did you read this though?

VCCIO: more commonly known at QPI/VTT voltage, this is the VTT voltage. Formally known as Processor Power for I/O it is the voltage for the integrated memory controller as well as the PCI-E controller. While Intel’s Maximum is 1.05 +/- 3% = 1.08v, you can go higher, much higher. I would recommend staying below 1.2v for 24/7 use, but depending on the quality of the IMC on your chip, I have seen 2133 MHz done on as little at 1.1v. I used 1.12v for overclocking my Dominator 1600 MHz to 1866 MHz, and it did it without any problems. Do realize that this voltage contributes heat as well to the whole thermal package.
Oh ok. So 1.7 is good for 24/7?

My kits are good, yes, but are they still good if 2 kits are combined to make 4x2GB and populate all 4 DIMM slots? Populating all slots is more taxing to the IMC, right?

But the XMP profile is 1600MHz? How about the 4th timing and the 5th timing, what are their relation to the first three?

Two kits of the same ram? Full populated ram slots will be harder for the imc, if you need 8gb use it as is and settle with 1866mhz with awesome timings, or whatever you can get at 2133mhz.
1.65v is quite common rating for those sticks, so 1.7v is nothing for them really.
Also, CL3P2O is a really well known bencher, he knows his stuff wink.gif Check his hwbot.org profile out before arguing with him lol
I mean, I know a few things, but I have like 28pts and he has over 400 lol...
The secondary and tertiary timings will be complicated to tweak. Just use the numbers to the left of the AUTO value and set those manually. Loosen them a few notches each time...I'd use auto first though.
post #192 of 1055
Quote:
Originally Posted by ivanlabrie View Post

Two kits of the same ram? Full populated ram slots will be harder for the imc, if you need 8gb use it as is and settle with 1866mhz with awesome timings, or whatever you can get at 2133mhz.
1.65v is quite common rating for those sticks, so 1.7v is nothing for them really.
Also, CL3P2O is a really well known bencher, he knows his stuff wink.gif Check his hwbot.org profile out before arguing with him lol
I mean, I know a few things, but I have like 28pts and he has over 400 lol...
The secondary and tertiary timings will be complicated to tweak. Just use the numbers to the left of the AUTO value and set those manually. Loosen them a few notches each time...I'd use auto first though.

Yes, because when I was buying RAM modules there wasn't a single 2x4GB kit that was CAS6. I was recommended these kits because they are known to be very good overclockers as you have mentioned also. Are we referring to the same kit from the very start of our conversation? The 2x2GB kit?

Oh, I didn't know about CL3P2O but now I know smile.gif I wasn't actually arguing with him. I'm just asking why the link above says that VCCIO is the IMC voltage? At what frequencies should the IMC voltage increased up to its max of 1.2V anyway?
Quote:
Originally Posted by ivanlabrie View Post

The secondary and tertiary timings will be complicated to tweak. Just use the numbers to the left of the AUTO value and set those manually. Loosen them a few notches each time...I'd use auto first though.

Secondary and tertiary timings? I wasn't asking about those actually smile.gif I thought those timings should be left default? Is there an advantage on manually inputting the number to the left of AUTO?

We are only concerned with the 5 primary timings, right? You said the 1st and 3rd timings should be equal. The 2nd timing should be plus 4 to the 1st/3rd. Now I was asking what is the 4th (usually 20+) and 5th timing (command rate), what is their relation to the firs three?
post #193 of 1055
Well, poop. I think they already degraded on me or my IMC degraded. 1866 8-9-9-21 works fine but even 2133 11-11-11-28 is not booting. I can only test em on my backup AMD rig but I don't even think they'll go passed 1600 on an Athlon II X4 620 mad.gif
post #194 of 1055
Quote:
Originally Posted by kevindd992002 View Post

Yes, because when I was buying RAM modules there wasn't a single 2x4GB kit that was CAS6. I was recommended these kits because they are known to be very good overclockers as you have mentioned also. Are we referring to the same kit from the very start of our conversation? The 2x2GB kit?

Oh, I didn't know about CL3P2O but now I know smile.gif I wasn't actually arguing with him. I'm just asking why the link above says that VCCIO is the IMC voltage? At what frequencies should the IMC voltage increased up to its max of 1.2V anyway?
Secondary and tertiary timings? I wasn't asking about those actually smile.gif I thought those timings should be left default? Is there an advantage on manually inputting the number to the left of AUTO?

We are only concerned with the 5 primary timings, right? You said the 1st and 3rd timings should be equal. The 2nd timing should be plus 4 to the 1st/3rd. Now I was asking what is the 4th (usually 20+) and 5th timing (command rate), what is their relation to the firs three?

Normally these sticks can't do anything below 27 or 28 at higher clocks, hence the suggestion.
Command rate should be 1t, or 2t for clocks over 2600mhz, but that would only work if your imc could do it. Stick to 1t if possible...
Quote:
Originally Posted by Zeek View Post

Well, poop. I think they already degraded on me or my IMC degraded. 1866 8-9-9-21 works fine but even 2133 11-11-11-28 is not booting. I can only test em on my backup AMD rig but I don't even think they'll go passed 1600 on an Athlon II X4 620 mad.gif

How odd...Sounds like a bad or degraded imc, ram sticks are really tough.
And no, an am3 cpu will not go past 1600mhz, though you can probably do tighter timings at least. (cl7-7-7-21) lol
I'd give them a go with the I7, you might need to tweak some more things. Have you read that guide I posted?
post #195 of 1055
Quote:
Originally Posted by ivanlabrie View Post

Normally these sticks can't do anything below 27 or 28 at higher clocks, hence the suggestion.
Command rate should be 1t, or 2t for clocks over 2600mhz, but that would only work if your imc could do it. Stick to 1t if possible...

And as I've noticed on my testing, as soon as I set command rate to 1t then I can POST but cannot boot into Windows. Does that mean my IMC can't handle it?

Can I push these sticks up to 2400? The last time I've checked I cannot POST at 2400 but I didn't know what timings to use then.
post #196 of 1055
Quote:
Originally Posted by ivanlabrie View Post

How odd...Sounds like a bad or degraded imc, ram sticks are really tough.
And no, an am3 cpu will not go past 1600mhz, though you can probably do tighter timings at least. (cl7-7-7-21) lol
I'd give them a go with the I7, you might need to tweak some more things. Have you read that guide I posted?

The one above? or a page back with the timings? I tried em all and a no go :l
post #197 of 1055
Quote:
Originally Posted by kevindd992002 View Post

And as I've noticed on my testing, as soon as I set command rate to 1t then I can POST but cannot boot into Windows. Does that mean my IMC can't handle it?

Can I push these sticks up to 2400? The last time I've checked I cannot POST at 2400 but I didn't know what timings to use then.

2400mhz isn't possible with a Sandy cpu.

Use 2t if it posts and tweak the other main timings...Try 1866mhz cl7-9-7-24-2t with 1.7v. I could do that using my CRAPPY G620 sb cpu which has the most basic IMC in the world lol
post #198 of 1055
Quote:
Originally Posted by ivanlabrie View Post

2400mhz isn't possible with a Sandy cpu.

Use 2t if it posts and tweak the other main timings...Try 1866mhz cl7-9-7-24-2t with 1.7v. I could do that using my CRAPPY G620 sb cpu which has the most basic IMC in the world lol

Ok, lol. But I remember that I cannot even POST with CAS=7 even at 1600MHz. I can POST at CAS6 when only 1 kit (2x2GB) is installed. But as soon as I install 4 modules, then the lowest CAS that I could post is 8. I can POST at 1600 8-10-6-24-2t but not sure if is stable. That is with 1.65V vdimm though.

Is higher frequency or lower timings better?

When you recommended 1866mhz cl7-9-7-24-2t, I thought the 2nd timing should be 11 (7+4)?
Edited by kevindd992002 - 1/17/13 at 7:40pm
post #199 of 1055
Quote:
Originally Posted by kevindd992002 View Post

Ok, lol. But I remember that I cannot even POST with CAS=7 even at 1600MHz. I can POST at CAS6 when only 1 kit (2x2GB) is installed. But as soon as I install 4 modules, then the lowest CAS that I could post is 8. I can POST at 1600 8-10-6-24-2t but not sure if is stable. That is with 1.65V vdimm though.

Is higher frequency or lower timings better?

When you recommended 1866mhz cl7-9-7-24-2t, I thought the 2nd timing should be 11 (7+4)?

You need both: high freq with tight timings, specially wiith SB which can't do over 2133mhz without touching bclk.
I know these sticks can hit trp 9 at 1866 on SB cause I have done it. That timing must be loosened when going up, same as the one before command rate. It would look like this:

1600-1866 x-9-x-24/27
2133-2300 x-11-x-28

Depends on your sticks or imc, but that's relatively commonplace.
post #200 of 1055
Quote:
Originally Posted by ivanlabrie View Post

You need both: high freq with tight timings, specially wiith SB which can't do over 2133mhz without touching bclk.
I know these sticks can hit trp 9 at 1866 on SB cause I have done it. That timing must be loosened when going up, same as the one before command rate. It would look like this:

1600-1866 x-9-x-24/27
2133-2300 x-11-x-28

Depends on your sticks or imc, but that's relatively commonplace.

And those are all at 1.7V?
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › Samsung Miracle Memory Club