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post #5761 of 14939
Is there any reason why would increase of T_CCD_WR to 1 change write speed to equal read speed?
Also why would relaxing T_CWL freeze PC?
post #5762 of 14939
Since people are posting some aida64 memory pics with the R4BE, here's mine:

    
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post #5763 of 14939
Quote:
Originally Posted by hotrod717 View Post

I'd be happy to see a R15 run. thumb.gif I can boot 5ghz.


Not a rIVBE (I'd like one but monies...), but a 5ghz r15 run with meh memory. The x79 gd45+ with 4960x really doesn't like mixed memory kits which is what I usually use for quad channel so had to use a kit I wouldn't normally bench anything with.

    
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post #5764 of 14939
Quote:
Originally Posted by szeged View Post

The cpuz I linked was 5.1 it was somewhat stable but needed more voltage than I liked for 24/7, it can boot at 5.2 & 5.3 but the volts it needs aren't close to safe for water even in winter. I think I got a good chip, not golden exactly but still good and if it does eventuallybsod for me at 5.0 you guys would be the first to know tongue.gif

 

I had to feed mine 1.5v for it to handle the Aida64 Stability Test at 5.0GHz. I didn't really know what i was doing in BIOS though and probly didn't optimize everything else correctly. I didn't even bother trying Prime cuz it wuz acting a little sluggish during the Aida Test, temps were fine though.

 

I kinda got sidetracked from testing my cpu because of this damn Elpida Memory in my 290x. I've been doing everything i can lately to try to get rid of all these random black screens. Such a frustrating thing to deal with!!!

    
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post #5765 of 14939
Quote:
Originally Posted by Raghar View Post

Is there any reason why would increase of T_CCD_WR to 1 change write speed to equal read speed?
Also why would relaxing T_CWL freeze PC?

Think of memory timings like reading the page of a book. Timings control the eye...

CAS = focus eye on first part of page.

tWCL = re-focus eye on different part.

(this is literally what's going on, CAS = COLUMN ACTIVE STROBE, or primary call for data) tWCL = time WRITE CAS LATENCY.


if tWCL takes to long, the page has been turned, giving instability since the required data wasn't written in time before the page turned.


All timings are similar...you got time on a line, time on a row, refresh a page, etc, etc, etc

Quote:
Originally Posted by LunaP View Post


For TwCL did you mean tRRD?

No, I meant tWCL. It's at the bottom of secondary timings, set to "9" by your screenshots.


Which also shows that you didn't follow ALL the directions...you did not set secondary timings manually to match what the ram shows in the SPD tool in BIOS...nothing should be left on auto in primary and secondary timings.
Quote:
Originally Posted by LunaP View Post


Update

Following the VTT : VSSCA ratio guide by cad

I'm now @ 1.1v for VTT
and 1v for VSSCA

Aida now completes successfully. Running it a few more times to make sure it wasn't a fluke.

Write speeds however are bad. 63 on copy and read but 43 on write. Still looking for this setting mentioned.

After this should I attempt w/ 64gb? Except @ 2133? Since I'm sure 2400 would be quite a load for my chip, and uneeded? Would be nice to make use of them.


None the less this is definitely progress!! and a good learning experience.

I'm glad you got to see too much VCCSA causing issues. There's still more that can be done, but anyway, I'd just wait for the RMA kit and get the 64 GB kit in before going to hardcore here.
Edited by cadaveca - 2/16/14 at 5:17pm
post #5766 of 14939
Quote:
Originally Posted by FtW 420 View Post

Not a rIVBE (I'd like one but monies...), but a 5ghz r15 run with meh memory. The x79 gd45+ with 4960x really doesn't like mixed memory kits which is what I usually use for quad channel so had to use a kit I wouldn't normally bench anything with.

The 4960X's definately seem to like 5ghz better than 4930K's. A lot of talk about 4930K at 5 ghz, but so far only proof.gif of one on R15 thread and one over in the Ivy-E thread. I'm sure they are others out there and would love to see some. Lowest bench stable I've seen with 5ghz is 1.472v

- courtesy of centvalny - best of 25 chips


Edited by hotrod717 - 2/16/14 at 5:33pm
    
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post #5767 of 14939
So whats the general consensus for this board? Is it better than the rampage iv extreme? Worth it to switch from an asrock x79 extreme11?
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post #5768 of 14939
Thread Starter 
Quote:
Originally Posted by cadaveca View Post

Think of memory timings like reading the page of a book. Timings control the eye...

CAS = focus eye on first part of page.

tWCL = re-focus eye on different part.

(this is literally what's going on, CAS = COLUMN ACTIVE STROBE, or primary call for data) tWCL = time WRITE CAS LATENCY.


if tWCL takes to long, the page has been turned, giving instability since the required data wasn't written in time before the page turned.


All timings are similar...you got time on a line, time on a row, refresh a page, etc, etc, etc
No, I meant tWCL. It's at the bottom of secondary timings, set to "9" by your screenshots.


Which also shows that you didn't follow ALL the directions...you did not set secondary timings manually to match what the ram shows in the SPD tool in BIOS...nothing should be left on auto in primary and secondary timings.
I'm glad you got to see too much VCCSA causing issues. There's still more that can be done, but anyway, I'd just wait for the RMA kit and get the 64 GB kit in before going to hardcore here.

Good read,

as for my slow write speeds what can I do to bump that? The other person mentioned a setting I"m not seeing as well.
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post #5769 of 14939
Quote:
Originally Posted by LunaP View Post

Good read,

as for my slow write speeds what can I do to bump that? The other person mentioned a setting I"m not seeing as well.

It's on the third timing set, as is TWRSR, which is also a critical timing, as is TCCD.

But I must digress...this is where things start to get REALLY complicated (or, to be honest, beyond the point I feel I can explain things well).

When you're at the point where these timings and such become relevant (and I don't think they should be, for you),, you really have to start thinking not just about the memory, but about the entire system, and how it acts under stress. In order to truly push things, you've got to know, pretty much automatically, why a chip is failing, and what you should do to fix that.

Like, you related some troubles you've had, I consider what happened when I ran into similar, give some suggestions, you try, and the results kind of speak for themselves. This sort of info isn't "out there in the wild"...no documented...because most users shouldn't have to go down these roads, really. Benchmarkers, guys trying to break records, and those tuning BIOSes for board makers...yeah, this is day-to-day, for some...but not all.

And you know what most of those would do in this situation....?


Swap chips.


I think you need to push higher vCPU, but temps are a problem, really. I feel like you got a 4.4-4.3 GHz chip, that barely does 2133 MHz with 32 GB. I have a few myself. I'd also be looking at power supply...I know that may not make sense, but it is what it is, to me.
post #5770 of 14939
Thread Starter 
Quote:
Originally Posted by cadaveca View Post

It's on the third timing set, as is TWRSR, which is also a critical timing, as is TCCD.

But I must digress...this is where things start to get REALLY complicated (or, to be honest, beyond the point I feel I can explain things well).

When you're at the point where these timings and such become relevant (and I don't think they should be, for you),, you really have to start thinking not just about the memory, but about the entire system, and how it acts under stress. In order to truly push things, you've got to know, pretty much automatically, why a chip is failing, and what you should do to fix that.

Like, you related some troubles you've had, I consider what happened when I ran into similar, give some suggestions, you try, and the results kind of speak for themselves. This sort of info isn't "out there in the wild"...no documented...because most users shouldn't have to go down these roads, really. Benchmarkers, guys trying to break records, and those tuning BIOSes for board makers...yeah, this is day-to-day, for some...but not all.

And you know what most of those would do in this situation....?


Swap chips.


I think you need to push higher vCPU, but temps are a problem, really. I feel like you got a 4.4-4.3 GHz chip, that barely does 2133 MHz with 32 GB. I have a few myself. I'd also be looking at power supply...I know that may not make sense, but it is what it is, to me.

Ah I mean I can hit 4.5 @ 1.235 lowest I believe and keep it stable through most tests, just I bumped it to 1.25 for the RAM but vCore would also affect its ability to distribute voltage to the rest correct? I can bump it to 1.275 and see if that helps.

As for PSU's I have 2 atm , AX1200i for GPU's only, and AX860 for Motherboard/everything else.


If you think its the chip I could always try for the intel RMA, dunno how that works though if they ship one to you and you return the bad one or if you have to ship to them first before they determine?
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