i already have my xms 512mb 2700 ddr running at 2-2-2-5-t1-0, but i have to run it at 2.85 volts to keep it stable. i wonder if it will run at the 2-2-2-5-t1-0 speed at the normal 2.5 volts? that would be nice if it did. that way it would have a normal life span.
I don't think the Corsair stuff is rated as they are at default voltage. Their advertising will say stuff like DDR434, 2-3-3-7 at up to 2.8 volts.
I don't think any stick can run DDR400, 2-2-2-5 at default voltage, and I've tested almost all the Corsair modules, TwinMOS, and various Samsung DTL and CTL sticks. I have tested 5-ns Winbond on various PCB, as well as 6-ns Winbond.
Case in point: I just bought a spare Corsair XMS3500 C2 Plat. Tested it out last night. I was impatient, so right out of the box, I cranked her up to DDR456, 2-2-3-6 at 2.8 volts like my other Corsair and TwinMOS. Cleared Memtest with no errors. Not even burnt in, so looking good! I tested at guaranteed specs: DDR434, 2-3-3-6, 2.5 volts, and surprisingly, got 12k #5 errors! I was shaken, but found that by just bumping up voltage a notch to 2.6 she ran Memtest clean for 12 hours! (was burning her in) The beauty of Corsair Winbond is they respond tremendously to voltage. Since this stick performs so well to such a slight increase in voltage, it should do at least DDR472, 2-2-2-5 at 3.0 volts like my other XMS3500 stick - on a 4PEA+, anyway.
I have to say stick with Corsair. I have 5-ns TwinMOS that performs identical to XMS3500 C2 on an Albatron board, but the TwinMOS does not run as well on a 4PEA+ (that's why I went out and got a spare XMS3500 stick). The TwinMOS I'll leave on the Alb. board.
Last night I carefully examined a TwinMOS, XMS 3500, and generic ITC stick (all using 5-ns Winbond) and there is SIGNIFICANT difference in circuitry on the PCB! The ITC stick can barely do DDR400, 2-2-2-5 at 2.8 volts, despite its 5-ns Winbond chips! 'Nuff said.
With DDR, there seems to be some magic involved.
