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post #6841 of 7945
You need some extra vcore

No joke if I change my vcore to 1.29v then GFLOPS fall to 56 but its stable. Reason being, your Xeon has ECC L2 and 3 so it can detect small errors and correct them at the cost of performance. ECC slows things down but it allows errors to correct on the fly smile.gif less errors allows it to do less work and reduces wait cycles(could be the cause of the stuttering you feel is an ECC wait cycle of it correcting itself, remember ECC wasn't made to game, its meant for science and stuff)
post #6842 of 7945
Strange, on my system BF3 isn't using nearly as much RAM, there's 2 - 1.5GB free typically, or even more. Maybe it's low res, low settings vs high res, high settings? I have some variables tweaked like shadowmap size and others, as well as 1280x800 resolution on all lows, so maybe that's why.

Right, I've noticed how you mentioned the Nepton a few pages ago, I'm going to investigate that CLC later.
Quote:
maybe try 9-9-9-27-2T

Well, I tried the 1867 strap even, which is 11-11-11-31 or 34, meaning it's slower, and it didn't even boot. The RAM is not meant to be used at 1600 MHz, how can I know the native settings for those speeds?I guess there is no way. Maybe by looking up the 1600 MHz flavor of the kit (there surely is one, saw it today in an online shop) and copying?

At the moment I'm leaning towards the Crucial Ballistix Tactical that are 1600 8-8-8 stock, and are said to be able to go as high as 2133 on 10 or 11. Not sure if this chip and board are going to accept them though, the abovementioned RAM is not on the EVGA officially supported memory list. I'm afraid waste money here (not sure about a return, the RAM is packed in a way that I might have to cut the plastic, which means no return in Russia at least.)
post #6843 of 7945
Quote:
Originally Posted by GENXLR View Post

You need some extra vcore

No joke if I change my vcore to 1.29v then GFLOPS fall to 56 but its stable. Reason being, your Xeon has ECC L2 and 3 so it can detect small errors and correct them at the cost of performance. ECC slows things down but it allows errors to correct on the fly smile.gif

What about the RAM, seen my report above?

How is ECC related to vCore exactly?

And, L3 is Uncore IIRc, hence QPI not vCore if anything? (Not sure about L2, that's on the core, so it's vCore for that one.)
post #6844 of 7945
The ECC on the L2 cache passes data from the CPU core, in which if it has errors, it slows down to correct errors, and this is from the vcore being to low. Just use my settings with your ram settings. Set the timings manually, don't use presets, you should be all good to go smile.gif

Post your full settings soon, you should be okay, you saw someone else use my settings and get 73 GFLOPS, I know you can do it too, set the uncore to 2x ur ram speed, that's key
post #6845 of 7945
Tried 1.35V. 58 GFLOPS.

Uncore to 2x RAM would be 2400 MHz, very very low for GPU and overall performance, so I don't think I'm going to run that.

Also, 2X uncore was for the Nehalem, for Westmere it's 1.5X, isn't it?

Well 9-9-9-27 BSOD on me (some code with 7.. 7E, I didn't look well).

I was using your settings GENXLR, and as you can see above, tried 1.35V vCore, to no avail, it's still 58-50 GFLOPS.

@ 3.7 GHZ it's 53 GFLOPS right now, with 1.225 vCore, 17X uncore, 6x RAM, 18X QPI, +75mV VTT.

Gotta be the RAM I guess.

Edit: Argh wait did I set the RAM voltage last time? Sigh.
Edited by CrazyNightOwl - 5/31/16 at 5:12pm
post #6846 of 7945
Quote:
Originally Posted by CrazyNightOwl View Post

Strange, on my system BF3 isn't using nearly as much RAM, there's 2 - 1.5GB free typically, or even more. Maybe it's low res, low settings vs high res, high settings? I have some variables tweaked like shadowmap size and others, as well as 1280x800 resolution on all lows, so maybe that's why.

Just because you have "free" RAM doesn't mean your system isn't heavily caching to the system drive, it's not always advisable when your dealing with low amounts of RAM (I know 6GB isn't really low) but you can disable the page file to completely prevent the system from caching applications back and forth to the drive, it's also not advisable to use an SSD for page files because it will degrade the life of the sectors being used. Ideally you would want to have your page file on a hdd or none at all if you have enough RAM to not require it. Ideally you should have 12GB or more for your system and no page file, it's how I've been running my systems for the longest time.
Quote:
Originally Posted by CrazyNightOwl View Post

Right, I've noticed how you mentioned the Nepton a few pages ago, I'm going to investigate that CLC later.
Well, I tried the 1867 strap even, which is 11-11-11-31 or 34, meaning it's slower, and it didn't even boot. The RAM is not meant to be used at 1600 MHz, how can I know the native settings for those speeds?I guess there is no way. Maybe by looking up the 1600 MHz flavor of the kit (there surely is one, saw it today in an online shop) and copying?

Potentially your RAM is your weakest link at the moment, I'm not sure if you mentioned what brand/type it was, but could you let me know what your using just to get an idea of exactly how rubbish it is?

The Nepton will not fit in most cases without a custom setup or the use of less than ideal solution (mines held in with a 3 screws and a 50 lbs zip tie, not to mention I can't actually mount fans on it properly so I have a 120mm push inside and a 140mm pull on the opposite end of the rad outside, despite this I get acceptable temps, even at 4.0GHz. I only bought it because I was able to buy it at cost from a local PC place my friend was working at, came out less than the Noctua NH-D15 I went there for, really a no brainer and have not been disappointed, although the pump is a little loud when I first boot up.
Quote:
Originally Posted by CrazyNightOwl View Post

At the moment I'm leaning towards the Crucial Ballistix Tactical that are 1600 8-8-8 stock, and are said to be able to go as high as 2133 on 10 or 11. Not sure if this chip and board are going to accept them though, the abovementioned RAM is not on the EVGA officially supported memory list. I'm afraid waste money here (not sure about a return, the RAM is packed in a way that I might have to cut the plastic, which means no return in Russia at least.)

For RAM they typically come in a clamshell plastic packaging, I did something a little unorthodox and bought three 8GB kits to get the 24GB I now have, these Exactly, and as I said they showed up in plastic clam shells that pop open without damaging them. Funny enough it was cheaper than getting two 12GB kits and they didn't seem to have them with the LEDs that I wanted, but at this point any performance RAM from Corsair, Crucial or Kingston should be much better than what your currently using, whatever it is.
Quote:
Originally Posted by CrazyNightOwl View Post

Tried 1.35V. 58 GFLOPS.

Uncore to 2x RAM would be 2400 MHz, very very low for GPU and overall performance, so I don't think I'm going to run that.

Also, 2X uncore was for the Nehalem, for Westmere it's 1.5X, isn't it?

It tells me that in my BIOS as well, 1.5x for Westmere, but I have been exclusively using 2x with the exception of testing with the 1.5x recommended settings which did not help me at all, at least not as far as I could tell.
Quote:
Originally Posted by CrazyNightOwl View Post

Well 9-9-9-27 BSOD on me (some code with 7.. 7E, I didn't look well).

Was worth a try, from my experience RAM latencies are 7-7-7-21, 8-8-8-24, 9-9-9-27, 10-10-10-30, and rarely a command rate of anything less than 2T. However you do have some janky sounding RAM so who the hell knows.
Quote:
Originally Posted by CrazyNightOwl View Post

@ 3.7 GHZ it's 53 GFLOPS right now, with 1.225 vCore, 17X uncore, 6x RAM, 18X QPI, +75mV VTT.

Gotta be the RAM I guess.

Edit: Argh wait did I set the RAM voltage last time? Sigh.

Why is your Uncore 17x? That just stands out badly to me and it's a little hard to decipher when it's not all coherent. Can you list your settings like this:

Bclk YYY x ZZ = 3.7GHz
RAM Multiplier ZZx = YYYYMHz <-This being your actual RAM speed
Uncore ZZx = YYYYMhz <- This being your effective Uncore speed
QPI Data Rate Y.YYYGT/s <- Again this being your effective QPI speed

Otherwise I have no idea what your settings are, how did you get 3.7GHz? Did you use a Bclk of 161 like I had recommended before? I doubt you get that with a Bclk of 200
Edited by Adhmuz - 5/31/16 at 8:38pm
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post #6847 of 7945
200blck moves in increments of 200, so 3600mhz, 3800mhz, 4000mhz, 4200mhz, 4400mhz ect. I'd like him to just follow my recc settings as someone else reported numbers I have and I use mine daily ON A STOCK COOLER and get 76c max in IBT and lower when using normal programs, like 60C. 76 GFLOPS is very fun, I use 1T timmings at 1600mhz at 9-9-9-24 and I'm gonna try more aggressive settings once I have a life again
post #6848 of 7945
GENXLR I've tried your settings, even teh crazy high vCore, and the problem is I can't get the RAM to work at the settigns you mention! Do you copy? smile.gif I can't move on since the RAM misbehaves.. I got it o work ONCE or twice maybe, other than that, it BSOD's or freezes.

Settings used to stabilize RAM first:

12 x 200 = 2400 @ auto with vdroop safe (to eliminate vCore issues, as per the well known strategy)
+175 mV VTT resulting in about 1.35 (this board uses an offset VTT setting, not a direct one)
2:8 RAM
MCH Strap 1600
9-9-9-24-1T set manually, rest on auto (see above, uses the MCH Strap 1600 settings)
QPI 18 x 200 = 3600
Uncore - tried both 12X and 16X for 2400 and 3600 respectively, didn't work (see above)

That BSOD's and freezes.

The board adds .03 or .04 to teh RAM voltage set in BIOS so it's hard to set 1.65V exactly.

It's Corsair XMS3 1333 9-9-9-something 1.5V. Should work at 1600 9-9-9-24 1.65 but I constantly get BSOD's and freezez when trying to make it work.

Admuz please look a couple pages back, I have the settings listed very detailed fashion for my typical setup.

Edit: here it is

http://www.overclock.net/t/1461359/official-xeon-x5660-x58-review-discussion-and-xeon-l5639-benchmarks-inside/6820#post_25213242

finally

Setting VTT offset to +200 mV seems to get the PC working with 1600 MHz RAM @ 9-9-9-24-1T. Uncore @ 3200 MHz right now.

I tried to lower the QPI offset to +175mV and that resulted in BSOD's (it appears now that those were VTT-caused BSOD's!) even with uncore set to 2400 MHz.

But, and here's the big but, this new VTT offset setting results in a VTT voltage of 1.372-1.382 frown.gif So it's not possible to use 1600 MHz RAM with this board and CPU combo.

edit 3:

NOPE.

Evan at 1.37V VTT, I'm getting BSOD's and crashes and unstable behavior like booting every second time, Windows crashing on boot, etc.

Also, Windows memory diagnostic says "there is a hardware problem". Is it the RAM maybe?.. Damn, absolute disaster without a way to debug.
Edited by CrazyNightOwl - 6/1/16 at 3:41am
post #6849 of 7945
Quote:
Originally Posted by CrazyNightOwl View Post

Tried 1.35V. 58 GFLOPS.

Uncore to 2x RAM would be 2400 MHz, very very low for GPU and overall performance, so I don't think I'm going to run that.

Also, 2X uncore was for the Nehalem, for Westmere it's 1.5X, isn't it?

Well 9-9-9-27 BSOD on me (some code with 7.. 7E, I didn't look well).

I was using your settings GENXLR, and as you can see above, tried 1.35V vCore, to no avail, it's still 58-50 GFLOPS.

@ 3.7 GHZ it's 53 GFLOPS right now, with 1.225 vCore, 17X uncore, 6x RAM, 18X QPI, +75mV VTT.

Gotta be the RAM I guess.

Edit: Argh wait did I set the RAM voltage last time? Sigh.
take the IBT thread count and drop it to 6 (6 physical cores) for the correct throughput. WILL INCREASE SUBSTANTIALLY.

ECC only gets activated when ECC ram is used, communicates with the error correcting chip on the RAM itself. so don't worry about that.

AS FOR THE ERRORS YOU ARE GETTING, I would start small. one item clocked at a time. drop your core clock down to stock (lower the multiplier only) and check for memory stability. The main cause for ram instability is usually timings and voltage. use AIDA to locate the secondary timings, set them in your bios. leave as little set to "auto" as possible. Biggest one to look out for is the "TFAW". this being low can cause all sorts of issues. nail down the correct memory timings, with uncore set to 1.5x 2400. once you get the ram stable, slowly increase the Uncore one notch at a time. not every Xeon is gonna be stable at 2x uncore, it's pretty standard to run 1.8x. test stability with large FFT's in prime95 (quick to show errors). you should easily be able to achieve the advertised ram speed on the kit. But this can only be achieved with the Base clock. Xeon "X" series only support 1333mhz officially.

What ram do you have exactly??
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post #6850 of 7945
Quote:
Originally Posted by CrazyNightOwl View Post

It's Corsair XMS3 1333 9-9-9-something 1.5V. Should work at 1600 9-9-9-24 1.65 but I constantly get BSOD's and freezez when trying to make it work.

Is the corsair kit you have THIS? Here's the same KIT

Or maybe THIS?

Why do you think it "Should" work at 1600MHz 9-9-9-24 1.65v if it's not rated at those speeds? From what I gather it's probably rated at 1333MHz 9-9-9-24 1.5v and trying to run it faster at the same timings will not be pretty, even if you set the timings looser like 10-10-10-27 or even 11-11-11-30 it might not be happy running at 1600MHz with increased voltage.

Do you have Memtest you can boot up before entering windows to see if there RAM itself might have a bad module?

This is going no where fast and the more you try the more I think your RAM is toast or just not up to any kind of overclocking...
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