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post #21 of 25
Quote:
Originally Posted by Niner View Post
Sorry for the noobish question, but what's the difference between single and double-sided RAM? Is one inherently better than the other?
The only sure fire difference between single and doubles sided memory is that the former has chips on one side of the PCB, while the later has chips on both sides.

In the case of the 2x1GiB Ballistix sets, the single sided dimms use Micron D9HNL chips, while the double sided typically use D9GMH. D9GMH, being built on an older and large manufacturing process is inherently more durable and can take more voltage. These chips also tended to OC very well.

The D9HNLs seem to be much more sensitive to voltage, and are rarely able to clock as high, or remain stable with equally tight timings.

The above seems less true when it comes to the 1066 sticks. I suspect the 1066s are binned much better, as clocks that are common with them are often totaly unobtainable with the single sided ddr 800 modules.
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post #22 of 25
Quote:
Originally Posted by lemans81 View Post
If you look a lot of companys say "limited lifetime" warranty, which means they are warrantied for as long as the company is still making them. I know its this way with Gskill and geil. Go read the full warranty info and you will find that when something becomes obselete they no longer have to replace it. I believe most of the companys are phasing out ddr ram now.
Right on the money with that one.

As soon as a product goes EOL (end of life) the company is no longer obligated to replace them in most cases however I'm sure if you raise a fuss they would likely replace it with the next best thing that is still being manufacturered.
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post #23 of 25
Quote:
Originally Posted by smokinbonz View Post
A few weeks ago I had some rma issues with crucial. Overall I guess i am satisfied because the ram i got in return was both doublesided and thus far works flawlessly. Unfortunately the Hold times on the telephone were rediculous, and when i say that i mean , please wait an hour to talk to someone which was never the case it was more. I paid for a crosship to minimize downtime but that proved worthless as they screwed up my address and i had to call and repeat the process to update them. So by the time they sent the replacement ram they had already received my return. Maybe i got double sided cause i asked and paid in advance , maybe it really is just a matter or whether it is in stock or not. IDK, Overall I can say I am happy cause its solved now. If they fail again within an unreasonable amount of time ahh im done with them you'll see a new set in the for sale section.

IMO you got no reason to really complain, I know it sucks when stuff fails. Thats the way it is sometimes.

Hold times of an hour+

... my first RMA took about 10 min to complete, 2nd about the same and the last one took 30 mins. They're obviously having problems. I really liked them at first but it's time to move on.
post #24 of 25
My only complaint with RMA (had to RMA 2 sets last month) was that it took a while to get back to me with a number. Once I had the number, it went fairly quickly. I had a return shipping (3-day select too ) tracking number the same day as I got the confirmation that they received my package.

I did get singles in replacement for doubles, but so be it. They are only obligated to replace with like items, so as long as they are stable running 4-4-4-12, 2.2v you have nothing to complain about.
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post #25 of 25
Quote:
Originally Posted by Evostance View Post
They've stopped manufactoring double sided ram....yeh right
Actually they did. Their new 2x2GB modules use the more dense Micron D9HNL. It makes perfect sense for them to use those D9HNL on the 2x1GB sets now since they have no idea how much longer people will continue to buy 2x1GB. This way, if people stop buying 2x1GB, they don't have piles of D9GMH IC's that they can't use. You can't put the D9GMH's on 2x2GB sets because you cannot put 32 ICs on one stick (unless you know of a way to make 4-sided RAM, LOL).

Quote:
Originally Posted by ZealotKi11er View Post
I dont get about the Life time warranty. What if ur ram burn after 12 years and lets say you still have the same PC with DDR2 and buy 2020 ther is DDR9 what will they do?
Do you have a 12 year old computer that you'd like parts replaced on to keep it going? 99.9% of people will never keep a computer that long and they know this.

Quote:
Originally Posted by Niner View Post
Sorry for the noobish question, but what's the difference between single and double-sided RAM? Is one inherently better than the other?
2x1GB sets use to be doubled sided, meaning that each 1GB stick has 8 IC's on each side of the RAM, or 16 total. Each IC therefore represented 64MB of memory (16 x 64MB = 1024MB, or 1GB). The 64MB IC's being used were the famous Micron D9GMH, some of the best overclockers we've seen to hit mainstream markets at an affordable price. That's why everyone was buying the 2x1GB sets of Crucial Ballistix.

But to make a 2GB module for 2x2GB sets, they obviously can't put 32 D9GMH's on one stick, there's no more room! So they had to make an IC that had the similar physical dimensions to the D9GMH IC but with twice the storage capcity. The result was the Micron D9HNL which has twice the memory capacity as the D9GMH but is about the same physical size, which is why it's called "more dense". Now they can fit 16 D9HNL's on a module (8 per side) making it a 2GB stick.

But as mentioned above, it makes sense to focus production on this new IC that is guaranteed to be around for awhile, so they phased out production of the D9GMH in favor of the more dense D9HNL. There's still a demand (diminishing though) for 2x1GB sets since they're nice and cheap, so Crucial slapped 8 D9HNL's on one side of a module and left the other side empty, making it a 1GB stick. Hence the newer 2x1GB sets are single sided.

The D9GMH supposedly overclocks a little better but from listening to people here it sounds like the D9HNL's are almost as good. I've heard a lot of complaints about them dying, but seeing as almost everyone here now uses Crucial, it makes sense that the only failures we're hearing about are Crucial (can't have other memory fail if you don't buy it duh). Also, it's a general rule that the denser the technology, the more sensitive it is to voltage (look at the 45nm Intel CPUs). So people get the 2x1GB single sided sets and crank up the voltage like they did on a double sided set and wonder why it died. I'm not saying everyone is going out of spec with the voltage, but some are and this is skewing the numbers. The rest just have to accept that sometimes memory dies Especially in it's infancy (these D9HNL's haven't been out long).
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