Overclock.net › Forums › Components › Memory › RAM tightening qestion.
New Posts  All Forums:Forum Nav:

RAM tightening qestion.

post #1 of 5
Thread Starter 
I've heard lot's of talks about overclock the RAM by tightening the timing.

I set the "DRAM timing control" in my bios to manual and it display the first four options as 5-5-5-15 and I leave it like this for now.
Will I get better gaming performance if I lower these values? Will this put more pressure to my PC if I already overclocked my CPU?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8300  asus p5k pro 8800GT 512MB 2X Transcend 1GB DDR2 800 
Hard DriveOSMonitorPower
WD raptor 74GB XP pro 32bit CMV CT-72 17' Thermaltake 420W 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8300  asus p5k pro 8800GT 512MB 2X Transcend 1GB DDR2 800 
Hard DriveOSMonitorPower
WD raptor 74GB XP pro 32bit CMV CT-72 17' Thermaltake 420W 
  hide details  
Reply
post #2 of 5
http://www.overclock.net/faqs/26706-...s-dummies.html
Q6600
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 SLACR Gigabyte EP45-DS3R XFX HD Radeon 4850 512MB 2 x 2GB OCZ Reaper HPC Edition DDR2-800 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 7200.10 SATAII 320GB Samsung SH-S223Q/BEBN Black DVD+RW Vista Ultimate SP1 64Bit Samsung 206BW 
KeyboardPowerCaseMouse
Logitech G11 Corsair HX620 Antec Nine Hundred Microsoft Sidewinder 
  hide details  
Reply
Q6600
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 SLACR Gigabyte EP45-DS3R XFX HD Radeon 4850 512MB 2 x 2GB OCZ Reaper HPC Edition DDR2-800 
Hard DriveOptical DriveOSMonitor
Seagate Barracuda 7200.10 SATAII 320GB Samsung SH-S223Q/BEBN Black DVD+RW Vista Ultimate SP1 64Bit Samsung 206BW 
KeyboardPowerCaseMouse
Logitech G11 Corsair HX620 Antec Nine Hundred Microsoft Sidewinder 
  hide details  
Reply
post #3 of 5
it'll put more pressure on your NorthBridge, as far as performance is concerned, you'll probably see gains in benchmarks but as far as frames per second in games are concerned you wont really notice any performance boost, best way to find out is try it and see! if you can tighten timings and maintain stability, then there's no reason not to!
Gaming System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9550(C1) Striker ll Formula 780i ATI Radeon 4870X2 4GB Dominator PC2-8500 
Hard DriveOSMonitorKeyboard
OS on 36Gb Raptors in RAID0 Vista 64-bit Samsung 2693HM 26" 1920x1200 Saitek Eclipse ll 
PowerCaseMouse
850W coolermaster power pro modular Coolermaster Cosmos 1000 Habu 
  hide details  
Reply
Gaming System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Q9550(C1) Striker ll Formula 780i ATI Radeon 4870X2 4GB Dominator PC2-8500 
Hard DriveOSMonitorKeyboard
OS on 36Gb Raptors in RAID0 Vista 64-bit Samsung 2693HM 26" 1920x1200 Saitek Eclipse ll 
PowerCaseMouse
850W coolermaster power pro modular Coolermaster Cosmos 1000 Habu 
  hide details  
Reply
post #4 of 5
Dunno what ICs those use, but if you are done OCing the CPU & have the RAM set the speed you want, then you can try lowering them.

I usually start by dropping tRP, as it tends to be the one you can sometimes run one lower than tCL/tRCD.

So 5-5-4-15.

Then, assuming that passes Memtest, i'd try 5-4-4-15 or 4-5-4-15...depends on IC, etc, as to whether you can lower tCL or tRCD, if either.

Then i'd see if 4-4-4-15 works.

Then 4-4-3-15, which is likely as far as you'll get with RAM around the DDR2-800 speeds.

Again, with each value you lower, you should be testing for stabily, otherwise you'll just end up wasting a ton of time trying to figure out what is unstable.

Be aware, lowering these timings will eventually cause your system to not POST, so get familiar with resetting CMOS if you aren't already or your board doesn't have a recovery feature like resetting after removing power, etc.

Then you can drop tRAS to 8-12 more than likely.

On some kits, you can run tRAS really low, but it really doesn't help much, so i wouldn't worry about inducing hassle over essentially nothing.

I will admit i ran my Team Xtreem @ 4-4-4-4 for benching since it looked kewl having the numbers all the same lol, but really, it wasn't helping other than by an insanely tiny amount in Super Pi.
Edited by -n7- - 12/18/08 at 5:54pm
ense7en
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 930 @ 4 GHz Gigabyte X58A-UD3R HIS HD 5870 G.Skill Ripjaws 4x2 GB @ DDR3-1600 7-7-6-24 1N 
Hard DriveOptical DriveOSMonitor
3x Intel X25-M 80 GB RAID-0; OCZ Agility 120 GB Samsung SH-S243D 7 Ultimate x64 Dell 3007WFP & Samsung 204T 
KeyboardPowerCaseMouse
G15 Corsair HX1000 Coolermaster Haf 932 G500 
  hide details  
Reply
ense7en
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 930 @ 4 GHz Gigabyte X58A-UD3R HIS HD 5870 G.Skill Ripjaws 4x2 GB @ DDR3-1600 7-7-6-24 1N 
Hard DriveOptical DriveOSMonitor
3x Intel X25-M 80 GB RAID-0; OCZ Agility 120 GB Samsung SH-S243D 7 Ultimate x64 Dell 3007WFP & Samsung 204T 
KeyboardPowerCaseMouse
G15 Corsair HX1000 Coolermaster Haf 932 G500 
  hide details  
Reply
post #5 of 5
Thread Starter 
Ok.
But beside lowering the value of the first four items in the "DRAM timing control" option.
Should I also try to adjust the values of the remaining items such as "row refresh cycle" and "write recovery time"? Or leave them as "auto"?
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8300  asus p5k pro 8800GT 512MB 2X Transcend 1GB DDR2 800 
Hard DriveOSMonitorPower
WD raptor 74GB XP pro 32bit CMV CT-72 17' Thermaltake 420W 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8300  asus p5k pro 8800GT 512MB 2X Transcend 1GB DDR2 800 
Hard DriveOSMonitorPower
WD raptor 74GB XP pro 32bit CMV CT-72 17' Thermaltake 420W 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › RAM tightening qestion.