OCZ is very good ram. Corsair used to considered expensive, but the best. In the past year, though, Corsair changed the IC chips from Micron to Promos and their quality and reliability have gone way down. The last two sets of Corsair ram I got both failed. Corsair says its a motherboard problem, but when I use an older set of Corsair ram, everything works fine. Next ram I buy will be OCZ.
Just FYI, we use MANY different ICs in our memory, just like everyone with the possible exception of Crucial. I think they are currently 100$ Micron. To say that our quality is lower because of Promos is simply not true. Our quality and reliability has not gone down and I believe that our failure rate is probably the lowest in the industry though there is no way to verify this.
It's unfortunate that you had 2 failures and I certainly understand your decision to switch brands after that. But, there is a good chance you will be buying Promos or, some IC other than Micron, depending on which model you select.
For the OP here, this does not sound like a RAM issue at all.
Ok, FYI and for everybody else's information for that matter, I will describe what happened. Perhaps you have a suggestion for a solution to the problem which has not been given to me as of this date.
A year ago I bought a computer with an ASUS A8N32-SLI Deluxe board. I bought Corsair XMS PC3200 ram with it. Wanting to go into overclocking, about six months later, I bought two gig (1 x 2) of PC3500LL Pro ram to go with my FX60 cpu. I had used Corsair ram for about 7 years at the time and never had problems at that time, so I made the purchase with good confidence.
As I turned up the performance, the ram failed. I tested it with Prime95, memtest86, Check-it diagnostics, and also in a different computer to make sure there wasn't a different computer problem affecting the ram. Finding that it failed in all tests, I contacted Corsair. Corsair told me to rerun all the tests I already had run, in addition to saying that they believed it to be a motherboard failure. Finally, there was agreement that the ram had failed and I RMA'd it.
I then received an e-mail from Corsair that the 3500 ram was not longer made. So much for the lifetime guarentee. Ok, I understand that sometimes products are superceeded by newer ones. I was told that I had a choice of accepting a set of PC3200C2 Pro ram, a set of DDR2 ram (useless in my computer) or a refund. I would have prefered a step up in ram, as it is common that when a product is discontinued, the next better product is offered in exchange. This would have been to either the PC4400LL Pro ram or the Dominator series ram. As that wasn't allowed, I decided to accept the PC3200C2 Pro ram and hope for the best.
The PC3200C2 Pro ram showed a failure in overclocking the day I got it. I was not overclocking the ram itself, but only the cpu, taking into account the needed differences in overclocking so that the ram did not exceed its clock limits, though the ram is advertised to allow a speed up to about 416 (208 doubled). Frustrated, I went ahead and bought another motherboard to make sure there wasn't a motherboard problem. There was no difference. I telephoned Corsair and was told there must be a problem with my computer, as it was unlikely to have two sets of ram fail.
With that response, I became very unhappy. The PC3200C2 Pro ram will allow the computer to function at a non-overclocked speed, but then it becomes pointless in its added expense and purpose.
Interesting enough, the original ram that I had in the computer, 2 gig of XMS PC3200 work just fine, no failures in any tests and that ram allows me to overclock my cpu without problem. From listings that I have read, the Pro line and Dominator line ram use the Micron ICs instead of the Promos ICs, but I have read of a number of people having problems with the lines using the Promos ICs.
If you have a suggestion or solution for me at this time, I'd be glad to know it.