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Overclocked ram timings - tCL and tRP

post #1 of 7
Thread Starter 
Hi,

Due to fps drops in Rise of Tomb Raider I've finally decided to overclock my ram. By default it's set to 1600mhz 9-9-9-24. After a couple of test runs I've managed to get it stable at 2133 10-11-10-27 @1,65V. I cannot go lower with the first two values but I am able to set it to 10-11-9-27 and the benchmark I use shows it's a little bit faster. The questions is - can I set timings like this? I mean I’ve always seen timings in which tCL and tRP are the same or the first one is lower, not the other way around.
Edited by rogigor - 6/26/16 at 7:55am
post #2 of 7
Sure you can, the lower the better. What ram do you have exactly?
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post #3 of 7
Thread Starter 
Kingston HyperX 2x4Gb 1600mhz CL9 KHX1600C9D3/4G
post #4 of 7
Quote:
Originally Posted by rogigor View Post

Kingston HyperX 2x4Gb 1600mhz CL9 KHX1600C9D3/4G
That stuff is pretty average so that's not too bad. If it's running stable with those timings then there is absolutely no reason not to use them.
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post #5 of 7
Thread Starter 
Well it turns out it's not that stable after all tongue.gif

It did pass 5 windows10 memory test runs, but I had 3 bsods like the one below (caused by fltmgr.sys). I changed the settings to 10-11-10-28 and we'll see. Is it safe to set voltage to 1,7V ?
Warning: Spoiler! (Click to show)
Crash Dump Analysis provided by OSR Open Systems Resources, Inc. (http://www.osr.com)
Online Crash Dump Analysis Service
See http://www.osronline.com for more information
Windows 8 Kernel Version 10586 MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 10586.122.amd64fre.th2_release_inmarket.160222-1549
Machine Name:
Kernel base = 0xfffff803`e1c92000 PsLoadedModuleList = 0xfffff803`e1f70cf0
Debug session time: Mon Jun 27 10:25:10.769 2016 (UTC - 4:00)
System Uptime: 0 days 16:10:11.457
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

CRITICAL_STRUCTURE_CORRUPTION (109)
This bugcheck is generated when the kernel detects that critical kernel code or
data have been corrupted. There are generally three causes for a corruption:
1) A driver has inadvertently or deliberately modified critical kernel code
or data. See http://www.microsoft.com/whdc/driver/kernel/64bitPatching.mspx
2) A developer attempted to set a normal kernel breakpoint using a kernel
debugger that was not attached when the system was booted. Normal breakpoints,
"bp", can only be set if the debugger is attached at boot time. Hardware
breakpoints, "ba", can be set at any time.
3) A hardware corruption occurred, e.g. failing RAM holding kernel code or data.
Arguments:
Arg1: a3a01f592e8015a6, Reserved
Arg2: b3b72bdf81006fb7, Reserved
Arg3: fffff8004d538290, Failure type dependent information
Arg4: 0000000000000001, Type of corrupted region, can be
0 : A generic data region
1 : Modification of a function or .pdata
2 : A processor IDT
3 : A processor GDT
4 : Type 1 process list corruption
5 : Type 2 process list corruption
6 : Debug routine modification
7 : Critical MSR modification

Debugging Details:

TRIAGER: Could not open triage file : e:\dump_analysis\program\triage\modclass.ini, error 2

BUGCHECK_STR: 0x109

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: CODE_CORRUPTION

PROCESS_NAME: System

CURRENT_IRQL: 2

LAST_CONTROL_TRANSFER: from 0000000000000000 to fffff803e1dd4450

STACK_TEXT:
ffffd000`208ee0b8 00000000`00000000 : 00000000`00000109 a3a01f59`2e8015a6 b3b72bdf`81006fb7 fffff800`4d538290 : nt!KeBugCheckEx


STACK_COMMAND: kb

MODULE_NAME: memory_corruption

IMAGE_NAME: memory_corruption

FOLLOWUP_NAME: memory_corruption

DEBUG_FLR_IMAGE_TIMESTAMP: 0

MEMORY_CORRUPTOR: ONE_BIT

FAILURE_BUCKET_ID: X64_MEMORY_CORRUPTION_ONE_BIT

BUCKET_ID: X64_MEMORY_CORRUPTION_ONE_BIT

Followup: memory_corruption
post #6 of 7
Quote:
Originally Posted by rogigor View Post

Well it turns out it's not that stable after all tongue.gif

It did pass 5 windows10 memory test runs, but I had 3 bsods like the one below (caused by fltmgr.sys). I changed the settings to 10-11-10-28 and we'll see. Is it safe to set voltage to 1,7V ?
If your running an old platform like Nehalem/Gulftown or Sandy bridge you probably won't have any problems running at 1.7V 24/7 but for Ivy bridge or Haswell I'd stay @ 1.65V max for 24/7 usage.
AMD platforms shouldn't have any problems with 1.7V either.
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CPUCPUMotherboardGraphics
1366: i7 920 D0 and many 4c & 6c Xeon's A bunch more Slot 1, S370 & S462/A CPU's. Z170M OCF & Z87 OCF + many more. Waaaay too many to list... 
RAMCoolingCoolingCooling
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The Banshee
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CPUMotherboardGraphicsRAM
Ryzen 7 1700 @ 3.8GHz ASRock X370 Taichi GTX 780 Ti SLI @ 1100/1250 1.063V G.SKILL Trident Z B-Die @ 3466 C14 
Hard DriveHard DriveCoolingCooling
Corsair Force LS 120GB WD Blue 1TB Phobya UC-2 LT XSPC Razor GTX 780 Ti Waterblock w/ Backplate 
CoolingCoolingCoolingCooling
Darkside LP 360mm Radiator Alphacool ST30 240mm Radiator Darkside D5 Vario @ 12V Setting 5 Bitspower Z-Multi 150 Red Reservoir  
CoolingCoolingOSMonitor
Darkside (TFC) 3/8 ID X 5/8 OD Red UV tubing TFC Black straight barb fittings Windows 10 Pro 64-bit LG 25UM57-P 
KeyboardPowerCaseMouse
Thermaltake Challenger  EVGA 1300 G2 Fractal Design Arc XL Evga Torq X3 
Mouse PadAudioOther
Steel series QCK+ Turtle Beach X12 Logitech G27 
CPUCPUCPUCPU
1151: 7350K, 6320 (743 XTU) 1150: i7 4770K 939 & 754: Many Athlon's, Opteron's & Sempron's  775/771: Many C2's, Pentiums, Celerons & Xeons 
CPUCPUMotherboardGraphics
1366: i7 920 D0 and many 4c & 6c Xeon's A bunch more Slot 1, S370 & S462/A CPU's. Z170M OCF & Z87 OCF + many more. Waaaay too many to list... 
RAMCoolingCoolingCooling
A table full of SDR, DDR1, DDR2 & DDR3 Bartx DICE/LN2 CPU Pot Sub-zero A/C waterchiller (-26C) CM Hyper 212+ (Troubleshooting) 
OSMonitorPowerCase
All of them. ;) Samsung S20B300 Evga SuperNova 850 B2 Homemade wooden test bench 
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post #7 of 7
Thread Starter 
It's santy bridge rig. 2500k @ 4,4Gh + Asrock P67 PRO B3. I'll give 1,7V a try.
Edited by rogigor - 6/27/16 at 8:14am
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