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Samsung 2x4Gb Low Voltage DDR3 1600 kit (OCing to 2400+) Discussion - Page 185

post #1841 of 2062
absolutely a must have biggrin.gif
post #1842 of 2062
Can I get some suggestions on what settings to try for 2200 for 24/7 stable?



Asus P8z77-v Pro

i5-3570k @ 4.5Ghz
1.21v
4x120mm Radiator

4 x 4GB
Samsung 2x4Gb Low Voltage DDR3 1600 kit @ 2000
9-10-10-28 1T
1.575v
Swizzle Enabled
Extreme DRAM Profile
All others at Default

Looking for a 24/7 stable solution.

I didn't win the lottery with my i5-3570k, I can not get it to post at 4.6 Ghz more than 1 time out of 7, no matter what the voltage.
I can not get this RAM stable at anything higher, can anyone offer me some suggestions on ways forward.

Failed at 2133 10-11-11-27-1T 1.6v
Failed at 2200 10-11-11-28-1T 1.6v
Failed at 2200 11-12-12-31-1T 1.62v

Running out of ideas. However, I bought these on sale so for about US$90, I'm doing alright for 16GB of 2000 at 1.575v .
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post #1843 of 2062
I can't get 2200 or 2400 either, probably my 3770K's IMC to fault.
And now since I'm selling my HD5750 I'll be using the integrated for a while* so I could've used that extra little bandwidth.

*until I've sold my stuff I don't use and then grabbing some lower end 600 or 7000 series card.

Sent from my GNote
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post #1844 of 2062
Well was messing around a bit and was kinda clueless why I couldn't get 2133 with 1T. No matter the settings. Ran for a while with 2133-9-10-10-21-2T but decided to go back to 2000 with 1T.
Now I'm experimenting a bit with the timings. Do keep in mind it's clearly still a work in progress.


By the way, is the tRAS guide line of tRAS=tCL + tRCD + 2 a good one to follow?
With tCL at 8 and tRCD at 9 I'd get 19 for the tRAS. Or should I instead go with something like 21 or 24 for the tRAS? I guess I'll just go and see what happens.
E: Well hmm, some MSI guide says tRAS = CL + tRCD+tRP (+/-1) and Wikipedia (lol) says TRCD + (2 * CL)
So with 8-9-9 I'd either go for 26 +-1 or 25.
P.S. I'm not so familiar with these timings but I'm learning as I'm going haha.
Edited by lagittaja - 6/6/13 at 2:34pm
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post #1845 of 2062
Quote:
Originally Posted by lagittaja View Post

Well was messing around a bit and was kinda clueless why I couldn't get 2133 with 1T. No matter the settings. Ran for a while with 2133-9-10-10-21-2T but decided to go back to 2000 with 1T.
Now I'm experimenting a bit with the timings. Do keep in mind it's clearly still a work in progress.


By the way, is the tRAS guide line of tRAS=tCL + tRCD + 2 a good one to follow?
With tCL at 8 and tRCD at 9 I'd get 19 for the tRAS. Or should I instead go with something like 21 or 24 for the tRAS? I guess I'll just go and see what happens.
E: Well hmm, some MSI guide says tRAS = CL + tRCD+tRP (+/-1) and Wikipedia (lol) says TRCD + (2 * CL)
So with 8-9-9 I'd either go for 26 +-1 or 25.
P.S. I'm not so familiar with these timings but I'm learning as I'm going haha.
The minimum tRAS=CL+tRCD+tRTP. Therefore nothing lower than that.

Have you tried loosening the timings to make sure they are not holding things back? You should start on loose timings and once you have found the highest overclock, tighten the timings as much as possible while still remaining stable.

Good luck
post #1846 of 2062
Yeah, I have tried with loose timings but it just refuses to boot with 2133, dunno why.
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post #1847 of 2062
Out of eight sticks of these, I couldn't get one to boot at DDR3-2800 mad.gif Some of the first batches of this stuff (1145 or so) could do 2400 9-11-11-28-1T with 1.65v but none I've tried could do those timings either.
post #1848 of 2062
Quote:
Originally Posted by litoralis View Post

Can I get some suggestions on what settings to try for 2200 for 24/7 stable?



Asus P8z77-v Pro

i5-3570k @ 4.5Ghz
1.21v
4x120mm Radiator

4 x 4GB
Samsung 2x4Gb Low Voltage DDR3 1600 kit @ 2000
9-10-10-28 1T
1.575v
Swizzle Enabled
Extreme DRAM Profile
All others at Default

Looking for a 24/7 stable solution.

I didn't win the lottery with my i5-3570k, I can not get it to post at 4.6 Ghz more than 1 time out of 7, no matter what the voltage.
I can not get this RAM stable at anything higher, can anyone offer me some suggestions on ways forward.

Failed at 2133 10-11-11-27-1T 1.6v
Failed at 2200 10-11-11-28-1T 1.6v
Failed at 2200 11-12-12-31-1T 1.62v

Running out of ideas. However, I bought these on sale so for about US$90, I'm doing alright for 16GB of 2000 at 1.575v .

I don't think you'll hit 2200 with 16GB and tight timings, try raising your VCCSA voltage & DRAM to 1.65. If it won't run, I think you've hit your IMC wall or drop 8gb. I can run 2226MHz 9-10-10-21-88-1T v1.65 8gb
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post #1849 of 2062
Hmm. What.. What? What?!
Moved my kit from sockets A1B1 to A2B2 on my motherboard.. Now 2400C11 booted without any extra effort.
The hell? At least now I know it's not my IMC or the motherboard holding back. That was no way stable and was running err 11-13-13-something-2T.
2200C10 in progress right now, with 1T cool.gif

Sent from my GNote

E:
It was 11-13-13-40-2T.

Now I'm running 2200-10-11-11-28-1T


Oh and these are with 1.65ish vdimm and VCCSA/IO is at 1.15v.
And these are just volts I threw in there, I'll start lowering them. Hopefully I could get below 1.6

E2: Wow, this is nice. Me likey


I'm still at the same voltages though. Heck, now I'm itching to try and see if CL9 would be possible. Just for the lulz
Edited by lagittaja - 6/9/13 at 3:21am
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Butterfly effect
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Helios
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CPUMotherboardGraphicsRAM
Intel Core i7 3770K Asus Maximus IV GENE-Z Club3D HD 7850 8GB Samsung 30nm 
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8GB Team Group Crucial BX100 250GB WD30EFRX Samsung SH-B083L 
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Thermalright HR-02 Macho Windows 10 Professional 64bit Benq G2410HD Cherry G80-3000 
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Seasonic 660w XP2 Fractal Design Define R5 Logitech Performance Mouse MX SMSL SD-793ii 
OtherOtherOther
2x Fractal Design GP-14 1x Noctua NF-A14 PWM Kensington Expert Mouse 
CPUMotherboardGraphicsRAM
Intel Pentium G2120 Intel DH77EB Gigabyte 5670 DDR3 1Gb (GV-R567D3-1GI) Kingston 2x4GB 1600Mhz CL9 1.35v 
Hard DriveHard DriveOptical DriveCooling
WD1001FALS Samsung 830 64GB Optiarc AD5280S Noctua NH-U12P 
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Arctic Cooling Accelero S1 Rev. 2 Scythe Slip Stream PWM Scythe Gentle Typhoon AP-14 Windows 7 Ultimate 64bit 
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post #1850 of 2062
Yeah, with Asus boards usually you want to use the red slots if you're not filling all as they tend to clock better for some reason.
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