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OCZ memory confusion!

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  • Memory
  • RAM
  • OCZ
Last response: in Memory
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October 30, 2006 10:40:52 AM

I purchased two 1GB OCZ Value Pro Series PC2 5400 667 memory modules. It has a sticker on each module which states that the RAM has 4-4-4-8 rating. However, the OCZ website states that the RAM has 5-5-5-15 ratings. BUT, when you view the picture of the product, one can see that the sticker on the chip says 5-5-5-10.

Does anyone know what the heck my RAM timings supposed to be? My MoBo defaulted the RAM to 533MHz, and i manually set the timings to 4-4-4-8. But now i want to set my RAM to 667 but im not sure about the ratings. Also, will DDR2 667 perform better than 533 on my specific system?

More about : ocz memory confusion

October 30, 2006 11:37:03 AM

Download CPU-Z and run it. Look into the SPD tab for each stick of memory. The manufacturer's suggested values are hard coded into the chip.
October 30, 2006 11:41:45 AM

Thanks, but will DDR2 667 improve performance? Some people say 533 is better for core 2 duo than 667... Not sure
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October 30, 2006 12:24:46 PM

DDR2 667 will allow more overclocking room. Other tha that it will default to 533 MHZ.
October 30, 2006 12:26:40 PM

And if i manually set it to 667? I dont plan to overclock..
October 30, 2006 12:49:03 PM

If you are not overclocking, leave it at 533 MHZ.
If you buy a more powerful processor later, you may be able to take full advantage of the increased speed.
October 30, 2006 1:09:23 PM

There are 2 factors that let you get more performance from memory, Mhz or Latency.

The lower the latency (4.4.4.8) the better they perform, but it gets to a point when is wise to loose latency (5.5.5.15) and boost Mhz.

Since you are talking about 533 or 667, you should stay at 1:1 ratio meaning 533 you can overclock you FSB from 266 to 333 (wich by you specs should be fine, and your 1:1 ratio now should be 667.

If you would be talking about 533 or 800 even 1066 Memory speeds then i would suggest loose timings and up the Mhz as fast as you can.
October 30, 2006 1:16:21 PM

Quote:
DDR2 667 will allow more overclocking room. Other tha that it will default to 533 MHZ.


Hmmm, not so much. Increasing the memory speed before OC means he will more than likely run into a memory wall way before his CPU wall.

As for 533 or 667, stick to 533. You want to run your memory in synchronization with your FSB, or you want to run it at DDR2 800, skip 667. The deal is that the increase in latency due to the asynchronous operation at 667 (1.25:1) does not outweigh the increase in bandwidth that come from operating the memory at 333.
October 31, 2006 4:58:18 AM

OK, so i set my RAM at 667 MHz and the timings at 5-5-5-15 as listed in CPU-Z.. Now my 3D mark 2005 score is 80 points lower than what it used to be..

So i guess im gona set it back to 533MHz and the timings to 4-4-4-12 or something..

Will those timings damage my RAM?
Also, i noticed that if i increase the CPU external clock, the RAM frequency also increases (BIOS)
October 31, 2006 6:37:50 AM

CPU-Z only shows the SPD settings, which are conservative settings designed for maximum compatibility, not max performance. Go ahead and use what's on the stickers; you should be able to find out from the manufacturer what DIMM voltage setting was used to get those numbers.
October 31, 2006 6:43:46 AM

I had the RAM set to 533Mhz at 4-4-4-8 Timings... But the problem is, the OCZ website info doesnt correspond to the sticker on my RAM chips..

Last thing i want is my RAM to burn out or something. Coz according to those stickers, i should be able to run my RAM at 667MHz and 4-4-4-8 timings. Which is way higher than the Gold XTC version OCZ RAM! I have the Value Pro Series, which is much cheaper..

So im just a bit "worried". Dont wana screw my rig up.
October 31, 2006 12:43:32 PM

Lowering timings are not going to fry your memory. You should be OK
October 31, 2006 1:26:38 PM

True. The worst that can happen with the wrong timings is it locks up.... in that case just restart. The one you want to watch out for is voltage, DDR2 can handle up to 2.5-2.7v without much trouble, though nominal voltage is around 1.8v-2.2v
October 31, 2006 1:26:51 PM

I have never heard of memory being damaged from timings too tight (lower.) The only thing that possibly will happen is system instability. If you encounter any stability problems, just relax (raise) the timings back to 5-5-5-10 or whatever default is.

Many memory modules come with default settings different than the settings they are proven to run at and advertised to run at. 4-4-4-8 should work great for you.
October 31, 2006 1:29:12 PM

Sometimes I've noticed that the suppliers put their own stickers on memory and actually up the settings without actually upping them.I mean they will sell say ddr333 as ddr400.This is misleading and amounts to false advertisment.Wo is the sucker that knows so little as to not read the manufacturers sticker instead of the stores sticker.I got caught like that once,but only once and I took them back and demanded a replacment of what i was supposed to get.Goodluck.Oh ya,memtest86 might help you find timings as well as cpu-z.

Dahak

AMD X2-4400+@2.4 S-939
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October 31, 2006 4:59:59 PM

Quote:
OK, so i set my RAM at 667 MHz and the timings at 5-5-5-15 as listed in CPU-Z.. Now my 3D mark 2005 score is 80 points lower than what it used to be..

So i guess im gona set it back to 533MHz and the timings to 4-4-4-12 or something..

Will those timings damage my RAM?
Also, i noticed that if i increase the CPU external clock, the RAM frequency also increases (BIOS)


533 @ 4-4-4-12 > 667 @ 5-5-5-15, in general 533 > 667 in almost every case. So keep it on the 1:1 with the FSB and you're fine.
November 1, 2006 4:42:38 AM

Thanks guys!
OK, so i set my RAM to 533 @ 4-4-4-12. My system was stable at 4-4-4-8 though, maybe i should set it back to that?

Anyway, there was another setting in the BIOS which confused me. A 5th "clock" setting, think it was called Write Recovery Timing or something.. So basically it is 4-4-4-12-4

What should that final "4" actually be?
!