Asrock 939 dual sata memory

kirkmeister · 30 Jun 2006 at 09:01

Gentlemen and ladies,

I apologise for my enquiry being outside of the normal Asrock thread, but I don't want this to get lost on page 82!

Would I be better getting 2 x 1gb DDR sticks instead of my 4 x 512mbs DDRs currently installed?

I run on a 64 4000+ with PCIe XFX 7800GT and use the rig for intense gaming.

TIA, Kirkmeister

Minstadave · 30 Jun 2006 at 10:02

Welcome to OcUK forums

2x1Gb gives better performance than 4x512mb due to limitations of the A64 memory controller.

The Gskill ZX is ideal and a good price.

vanandjuanunited · 30 Jun 2006 at 10:09

Short answer - YES

hp7909 · 30 Jun 2006 at 10:15

kirkmeister said:
{snip}Would I be better getting 2 x 1gb DDR sticks instead of my 4 x 512mbs DDRs currently installed?{snip}

OCUK 2Gb Memory FAQ sticky said:
Q. Should I buy 2x1Gb or 4x512Mb?

A. For those running on AMD 64-bit CPU's it has to be 2x1Gb DIMMS for the best performance possible. This has always been preferable, but the main reason for doing this is for two reasons.

Reason 1 :- Higher overclocks are possible.

Reason 2 :- A 1T Command Rate can be used which is important when trying to keep timings tight and getting the best from your system.

If you run 4x512 DIMMS then depending on what core revision you have, the system will either run at 333Mhz 1T or 400Mhz 2T. Obviously this is different if running on an Intel system.

***Command Rate determines whether a chip select can be executed in a single clock or whether it needs two or more clocks. In DDR the CMD rate offers a bigger boost in performance than CAS latency, with 1T command being the best currently available.***

More here

Cyber-Mav · 30 Jun 2006 at 10:20

hahah asrock bopard has problems with running 1T with anything more than 1 stick of ram. good luck getting it stable.

Minstadave · 30 Jun 2006 at 10:27

hp7909 said:
More here

Thats actually wrong iirc depending on the core it will drop to 333mhz 2T or 400mhz 2T, with 4x512mb its very difficult to get any 1T setting stable.

Cuchulain · 30 Jun 2006 at 10:30

Cyber-Mav said:
hahah asrock bopard has problems with running 1T with anything more than 1 stick of ram. good luck getting it stable.

I run 2 x 1mb sticks of Mushkin PC3200 with my CPU o/c'd and it runs 1T perfectly stable.

Minstadave · 30 Jun 2006 at 10:32

Cuchulain said:
I run 2 x 1mb sticks of Mushkin PC3200 with my CPU o/c'd and it runs 1T perfectly stable.

2x1Gb mate

Cyber-Mav · 30 Jun 2006 at 10:50

oh well. 4gigs is my pleasure.

Cuchulain · 30 Jun 2006 at 11:34

Minstadave said:
2x1Gb mate

Oops.

luismenendez · 4 Jul 2006 at 19:36

Cuchulain said:
I run 2 x 1mb sticks of Mushkin PC3200 with my CPU o/c'd and it runs 1T perfectly stable.

You are a lucky man

what bios do you use? memory speed?

Cuchulain · 4 Jul 2006 at 19:38

luismenendez said:
You are a lucky man

what bios do you use? memory speed?

Latest BIOS from the Asrock site, memory speed is 216.8mhz (processor is back down to 2.6ghz from 2.85ghz due to the heat in here but it's still a good overclock)

Naffa · 4 Jul 2006 at 20:05

Cyber-Mav said:
hahah asrock bopard has problems with running 1T with anything more than 1 stick of ram. good luck getting it stable.

Haha the boards made by Asus.

Cyber-Mav · 4 Jul 2006 at 20:56

for the cash its a good board

Cyber-Mav · 4 Jul 2006 at 21:00

Cuchulain said:
Latest BIOS from the Asrock site, memory speed is 216.8mhz (processor is back down to 2.6ghz from 2.85ghz due to the heat in here but it's still a good overclock)

shame, my overclock is 100% stable regardless of the weather outside. what cooler are you using? its easy to cool down the a64. im using a big typhoon.

3dfX · 4 Jul 2006 at 22:44

I've gotta say I'm underclocking from 220 to 210 - summer mode on

btw, can all you guys who claim 1T stable, copy any paste to paint?