Overclock.net › Forums › Components › Memory › DDR1 TCCD overclock: why Venice and why CPU multi 6 for extreme RAM clocks ???
New Posts  All Forums:Forum Nav:

DDR1 TCCD overclock: why Venice and why CPU multi 6 for extreme RAM clocks ???

post #1 of 3
Thread Starter 
Hi,

(I hope this is the right sub forum for my questions, otherwise please relocate).

This is the situation:

I´m trying to overclock DDR1 modules with Samsung TCCD chips to the max. clock.with the help of a DFI Lanparty NF4 Ultra-D board and different CPU´s (Winchester, Venice, San Diego and others).
But my results are bad, the best clock I achieved is 373MHz (DDR746). Most modules achieve 350 - 360MHz (DDR700 - DDR720).

So I took a look at this

http://hwbot.org/benchmark/memory_clock/rankings?cores=0&hardwareTypeId=memory_122#start=0#interval=20

and the guys there are able to overclock their RAM to DDR800 and more.
I have comparable hardware but I´m not able to manage such results.

There are a few things which attracting my attention:

1. Most of the guys use Venice and can clock very high. In my experience Winchester is far better. I give you an example:
OCZ PC4800 2 x 512MB achieve365MHz with Winchester, but only 270MHz with Venice (I´ve tried not only 1 sample of each)

2. Nearly all of these guys use CPU multi 6 and a RAM Clock of CPU/5. So they have (for example) 6 x 330MHz for the CPU and 396MHz for the RAM.
Why not 1:1? Most Venice samples are able to do 5 x 400MHz and more, so it should be no problem to let it run 1:1 for achieving high RAM clocks .
So I have tried this method with multi 6 and 5:6 divider, but it doesn´t work for me.
Results became even worse!
Example:
Venice 3500+ E6 1:1 with the OCZ PC4800, 270MHz RAM was accessible, but with 5:6 only 245MHz RAM Clock (by the way in all stated cases of OCZ PC4800 it was at 3-7-7-12,and 2,8V)

What is going on here? Do I overlook a simple trick?
I have no explanation why I should not be able to do the same things as the other guys, although I have the same very good hardware

Do you have any ideas what I could improve? Any help is very appreciated!.
post #2 of 3
First off, you're not going to get to DDR 800. All those guys are using highly binned sticks.

What software are you using to set timings?
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
  hide details  
Reply
post #3 of 3
Thread Starter 
Thanks for your answer billbartuska!

What do you mean by "highly binned" sticks?

I have a nice collection of the very good TCCD RAM (it is a collection of many years) . Ok I don´t have 1000 kits of OCZ PC4800, from which I have selected the best (may be you mean this as "highly binned"), but I have roughly 35 kits of such kits which are considered as very good.
Every single stick was tested by me and only with the best of these I try to achieve such high clocks.

Timings are set in bios (only main timings and command rate to 3-7-7-12 2T). I don´t use a special software. May be this is my mistake? Should I use such a software for better results?
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › DDR1 TCCD overclock: why Venice and why CPU multi 6 for extreme RAM clocks ???