DDR2 And extreme voltage....the simple facts

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Originally Posted by Phosphate

Yeah obviously there was some accelerated degradation as Tony puts it.

So its current (electron migration) running through the sticks that kills them, but how much effect does active cooling have on slowing the degradation?

I would think the cooling effect would be similar to the effect it has on CPUs. Maybe not completely eliminating extra wear but still effective.

P.S. I like those new Thermalright HR-07 Ram sinks.

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Cooling will only help so much and will only be helpfull below certain temperature ranges.

Even if you have 20c loaded temps there could be one spot which is weaker than the rest.

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Originally Posted by pauldovi

Is this the DDR2 Maximizer that will allow you to run lower voltages through the memory?

Someone said he went from 2.2v to 1.85V with same settings. Only difference was the maximizer. If that is true, this is a worthwhile investment.

I have Crucial DDR2-1000 that I am running at DDR2-800 3-3-3-6 @ 2.2V on my P5W (P5W won't do much higher than DDR2-950). The stocks volts are 2.2V. I intend to get the memory up to about 500Mhz with my P5B and try to run it at 4-4-4-8. I will clearly need to run more than stock volts to do this. But with that DDR2 maximizer allow me to do this at lower voltages?

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DDR Maximizer doesn't do miracles......YES you can work your rams with lower voltage than the motherboards onboard Vdimm circuit but it also depends on the motherboard itself on how stable is it's circuit for this and how "clean" are it's Vdimm voltages......(not quite good I could say for at least most of them).
DDR Maximizer has many advantages over nowadays motherboard's DDR circuits but it does not making miracles..... :)
Yes you can coldboot up higher (or even much higher) with a Maxi coz when we power up, most of the mobos firstly feed the DDR Modules with 1.8Vdimm and within a sec, it goes up to the point we have picked within bios. In such situation, our rams won't boot, therfore out all system won't boot.
Yes you can feed your rams ON-THE-FLY within Windows with the Maxi.
Yes it's dumn stable.
Yes it has TOO LOW Voltage output ripple comparing to ANY other motherboard's onboard design.
Yes it helps motherboard NOT to get hotter around the Ram's area (from it's onboard Vdimm power Mos-Fets) therefore the DDR Modules don't "draw" some of this temperature and they work colder
Yes the motherboard runs a bit colder too.
Yes it helps NOT to burn down (under some strange circumstances) during boot up with very high onboard Vdimm you may have piched, your DDR Modules from "spices" of this onboard Vdimm.
Yes it's easy to use and understand how it works within half an hour of playing with it.
BUT it does not making miracles.:)

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Originally Posted by hipro5

DDR Maximizer doesn't do miracles......YES you can work your rams with lower voltage than the motherboards onboard Vdimm circuit but it also depends on the motherboard itself on how stable is it's circuit for this and how "clean" are it's Vdimm voltages......(not quite good I could say for at least most of them).
DDR Maximizer has many advantages over nowadays motherboard's DDR circuits but it does not making miracles..... :)
Yes you can coldboot up higher (or even much higher) with a Maxi coz when we power up, most of the mobos firstly feed the DDR Modules with 1.8Vdimm and within a sec, it goes up to the point we have picked within bios. In such situation, our rams won't boot, therfore out all system won't boot.
Yes you can feed your rams ON-THE-FLY within Windows with the Maxi.
Yes it's dumn stable.
Yes it has TOO LOW Voltage output ripple comparing to ANY other motherboard's onboard design.
Yes it helps motherboard NOT to get hotter around the Ram's area (from it's onboard Vdimm power Mos-Fets) therefore the DDR Modules don't "draw" some of this temperature and they work colder
Yes the motherboard runs a bit colder too.
Yes it helps NOT to burn down (under some strange circumstances) during boot up with very high onboard Vdimm you may have piched, your DDR Modules from "spices" of this onboard Vdimm.
Yes it's easy to use and understand how it works within half an hour of playing with it.
BUT it does not making miracles.:)

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Why doesn't ASUS make a high end motherboard that doesn't have fancy lights and cool stickers on it. Instead, they could make a high end motherboard that supply clean power and small voltage droops.... :rolleyes:

I am a kid, short on money like all the others. I do have an appreciation for electrical engineering (I have a family history of them). I think I will pick one of these up when I get the money. $190 isn't a bad price for your $300+ investment.

yes, exactly pauldovi.
i swear, a asus striker would be totally worth the money if they lost the vdroop. loose the heatsink rollercoaster and the voltage droop (put digital pwm).

Hey, guys. Please dont do like: "Hey everyone my stiks working at 2.6v for 24/7 and not die yet" It is bad. Please write your chips (like GMH, DCD, GKS...), cooling, voltages for 24/7 and benching voltages, degradation your memory(if it was). We need more FULL statistic to make some decisions about degradation. We need to make like: this chips like 2.xV for 24/7 and <2.xV for benching... M`ok?

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Originally Posted by Drager2

Hey, guys. Please dont do like: "Hey everyone my stiks working at 2.6v for 24/7 and not die yet" It is bad. Please write your chips (like GMH, DCD, GKS...), cooling, voltages for 24/7 and benching voltages, degradation your memory(if it was). We need more FULL statistic to make some decisions about degradation. We need to make like: this chips like 2.xV for 24/7 and <2.xV for benching... M`ok?

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modules: G.Skill 6400HZ ( D9GMH )
cooling: Corsair Dominator fan kit.
24/7 voltage: 2.4V ( max. voltage on P5WDH, no mod. )
current status: D E A D.


Ran at DDR 800 4-4-3-5 with 2.1V from Aug. to Dec. w/o problem whatsoever.
Decided to tighten up the timing ( 3-3-3-6) during X'mas with 2.4V eventhough I hardly noticed any performance gain . About 10 days later, windows kept crapping out constantly until I lowered the speed to DDR320 @ 2.4V but it was short-lived anyway.
Just picked up a new set of Mushkin last Friday but I think I'm gonna keep it running @ cas 4 with 2.2V for 24/7 usage from now on.

http://www.xbitlabs.com/news/memory/...403234840.html Take a look

Noticed a couple things.

Reports of the Maximizer helping out even while not using it for big voltage boosts...

It may help by cleaning up the Vtt and Vdimm droops (and SPIKES) that alot of these motherboards seem to suffer from.

Remember the DFI NF4SLI-DR boards, with a huge droop/spike on the Vtt signal with BH5? It severely limited the max OC, but at least on BH5 it didnt kill anything. Same Riktek 9715 voltage regulator is used on alot of the boards for the Vdimm/Vtt. My new Foxconn 590SLI board has it, I was quite disappointed when I saw it...ugh.

Now maybe with DDR2 and lower voltages it is ok, but maube not. I wish someone with a digital storage scope could do some captures on the popular motherboards to see if the droop/spike is present.

Tony? You guys have the equipment yes/no?

Im using a set of OCZ 1066SLI sticks and they are awesome, and I set it to 2.1V with active cooling blowing on them. They were doing great at 570 5,5,5,15 with a 5600+ Windsor (12x270Mhz for 3250Mhz). But today it got hotter and suddenly I had a no boot/hang in memory test in the bios. Pulled one stick out, booted fine, later put it in at 230Mhz 2.0V and it is running, but now I skeeeered of the voltage.

PS: Tony, any suggestions for the sub-memory timings with AM2 chips, everything out here now is Intel related.

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Originally Posted by Dumo

Above 2.5V (extended use) and your ddr2 ram will degraded overtime, it Will needs more and more V just to run stable.
The better way imo, is to run 400ish and oc'd your cpu to the max...Unlinked preferably;)

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totally agree.i wonder how many micron d9 chips haved been rma,ed since there original ddr800 release date,lolololol:rofl:

voltage mainiacs = rma:eek: