[Official] - X58 Xeon Club - - Page 906 - Overclock.net

View Poll Results: How many years have you owned your X58 - Tylersburg platofrm?
More than 1 year 52 10.46%
More than 2 years 24 4.83%
More than 3 years 41 8.25%
More than 4 years 54 10.87%
More than 5 years 113 22.74%
More than 6 years 213 42.86%
Voters: 497. You may not vote on this poll

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post #9051 of 13392 Old 08-16-2016, 09:04 PM
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That's interesting. I suppose it is dual rank but with only 8 chips. That would explain the 1024MiB x 8 configuration. I guess in this case the chips they're selling for the same RAM now really are configured the same way. Not sure if I want to make the jump to get 24gb or stick with the 12gb I have now. I can't really complain for the price I paid - but I do have another system I could put these KLEVV modules in wink.gif
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post #9052 of 13392 Old 08-17-2016, 01:13 AM
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Quote:
Originally Posted by DRKreiger View Post

I really didn't think that the dual rank config made a difference, but it does. Even if it is minimal

All other things being equal, dual rank generally means higher bandwidth (more ranks to interleave), slightly worse latency, and a bit more difficulty OCing.

Also, more ICs for a given memory capacity means lower density ICs, which means tRFC can usually be tighter.
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Originally Posted by xenkw0n View Post

That's interesting. I suppose it is dual rank but with only 8 chips.

There are 16-bit ICs that only need four to make a rank, but this configuration is extremely rare for DDR3 UDIMMs.

I looked up my 4GiB sticks on Crucial's site and they are listed as "512Meg x 64", which implies 4Gib DRAM devices, but my sticks clearly have sixteen 2Gib ICs each.

GIven that DRKreiger has stated he sees ICs on both sides but didn't mention there only being four on each side (and there isn't really such thing as a dummy/blank IC, they are just left off if not needed) I think these Crucial Ballistix 8GiB DIMMs almost certainly have sixteen 8-bit ICs, of 4Gib density, with each rank being eight ICs.

8Gib DDR3 ICs are also very expensive and would likely not be found on memory DIMMs this inexpensive. Furthermore, they have extremely loose tRFC requirements, and the tRFC listed on DRKreiger's stick's SPD/XMP profiles correspond to 4Gib ICs.

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post #9053 of 13392 Old 08-17-2016, 01:21 AM
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@OCmember

Sorry dude, no time this week. Infact, due to a neighbour being evicted and not settling the ISP bill we're also now blocked from broadband :/

You've got some good figures there with your UD7 smile.gif

Dont forget QPI speeds are dependent on a silicon lottery for an X58 chip too.
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post #9054 of 13392 Old 08-17-2016, 04:16 AM
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Seeing as there is so much being written about secondary memory timings, doors anyone fancy showing any benchmarks with these tight timings and also with looser ones at the same frequency? Perhaps both CPU bound and mixed use benches?
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post #9055 of 13392 Old 08-17-2016, 08:41 AM
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Quote:
Originally Posted by Blameless View Post

All other things being equal, dual rank generally means higher bandwidth (more ranks to interleave), slightly worse latency, and a bit more difficulty OCing.

Also, more ICs for a given memory capacity means lower density ICs, which means tRFC can usually be tighter.
There are 16-bit ICs that only need four to make a rank, but this configuration is extremely rare for DDR3 UDIMMs.

I looked up my 4GiB sticks on Crucial's site and they are listed as "512Meg x 64", which implies 4Gib DRAM devices, but my sticks clearly have sixteen 2Gib ICs each.

GIven that DRKreiger has stated he sees ICs on both sides but didn't mention there only being four on each side (and there isn't really such thing as a dummy/blank IC, they are just left off if not needed) I think these Crucial Ballistix 8GiB DIMMs almost certainly have sixteen 8-bit ICs, of 4Gib density, with each rank being eight ICs.

8Gib DDR3 ICs are also very expensive and would likely not be found on memory DIMMs this inexpensive. Furthermore, they have extremely loose tRFC requirements, and the tRFC listed on DRKreiger's stick's SPD/XMP profiles correspond to 4Gib ICs.

I can get the trfc down to 160 at 8-8-8-24 1T 160 trf 1866mhz. as soon as i go lower, I get stop code 0x050. I would assume this would be due to the dense IC's

cigar.gif W3680 @ 4.55ghz 1.33V's 24/7 | Rampage III Extreme | 24gb Ballistix Tactical LP @ 2133 9-9-9-27 1.55v's. cigar.gif
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post #9056 of 13392 Old 08-17-2016, 09:36 AM
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Quote:
Originally Posted by DRKreiger View Post

I can get the trfc down to 160 at 8-8-8-24 1T 160 trf 1866mhz. as soon as i go lower, I get stop code 0x050. I would assume this would be due to the dense IC's

Yes - most likely. From what it looks like the KLEVV memory I have is laid out similarly to yours except its only 1 rank of 512 chips. Theoretically that would mean we'd have similar behavior with tRFC. I'm really interested to see what this memory can do if it lets me tighten the timings any further and once I overclock the CPU to about 4.2 ghz.

After all is said and done I'm thinking about shooting for 175 baseclock with x24 cpu multi to get 4.2ghz, QPI = 7.0ghz, RAM = 1750mhz and uncore = 3.5ghz.
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post #9057 of 13392 Old 08-17-2016, 09:53 AM
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Quote:
Originally Posted by xenkw0n View Post

Yes - most likely. From what it looks like the KLEVV memory I have is laid out similarly to yours except its only 1 rank of 512 chips. Theoretically that would mean we'd have similar behavior with tRFC. I'm really interested to see what this memory can do if it lets me tighten the timings any further and once I overclock the CPU to about 4.2 ghz.

After all is said and done I'm thinking about shooting for 175 baseclock with x24 cpu multi to get 4.2ghz, QPI = 7.0ghz, RAM = 1750mhz and uncore = 3.5ghz.

That is a darn good sweet spot clock. I would maybe think about trying an odd multiplier if the 24x doesn't play nice. I am very interested in your results. because if the results are even close to what i can achieve, I may get a couple kits, and go 2400 mhz genuine 4 gig sticks. Purely for aesthetics. I love the white LEDS.

cigar.gif W3680 @ 4.55ghz 1.33V's 24/7 | Rampage III Extreme | 24gb Ballistix Tactical LP @ 2133 9-9-9-27 1.55v's. cigar.gif
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post #9058 of 13392 Old 08-17-2016, 10:38 AM
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Where do you see them selling? I only came across them randomly on Newegg and after doing some research was surprised at how cheap they were. Right now the 2666mhz 4x4gb kit is $85 I believe which would be your cheapest option. When I bought my 2800mhz 4x4gb kit it was sold out the next time I looked so I may have grabbed the last one at $70.
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post #9059 of 13392 Old 08-17-2016, 01:28 PM
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Quote:
Originally Posted by xenkw0n View Post

Where do you see them selling? I only came across them randomly on Newegg and after doing some research was surprised at how cheap they were. Right now the 2666mhz 4x4gb kit is $85 I believe which would be your cheapest option. When I bought my 2800mhz 4x4gb kit it was sold out the next time I looked so I may have grabbed the last one at $70.

So where did you end up with your memory settings?

cigar.gif W3680 @ 4.55ghz 1.33V's 24/7 | Rampage III Extreme | 24gb Ballistix Tactical LP @ 2133 9-9-9-27 1.55v's. cigar.gif
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post #9060 of 13392 Old 08-17-2016, 01:34 PM
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Quote:
Originally Posted by DRKreiger View Post

So where did you end up with your memory settings?

I haven't had a chance to work on that computer since the weekend. I'll have time to get into it more this weekend again. I currently have it at my mother's house which I visit every weekend because she enjoys spending time with my daughter. During the week when I'm at my house I *only* have my X99 platform to work on sadsmiley.gif
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