Does 6ns memory = PC2700?

[barrese]

I got some PC2100 memory from Office Depot a couple of weeks ago. Based on a thread in the Hot Deals forum there were some packages that had 6ns sticks in them instead of 7.5ns chips and these were supposed to be PC2700 memory packaged as PC2100. Well I got 2 sticks of the 6ns PC2100 memory and am now using it in a new system I built. When I try and run the memory at 333 Mhz Windows loads fine, but as soon as I run Prime95 I get an error. I'm just running it at the default timing/power specs in BIOS. Does the fact that it's not stable at 333 Mhz mean it's not PC2700 or is Prime95 just being finicky? If I run Prime95 with the memory at 266 Mhz and the CPU at the same speed it runs fine.

256 MB 6ns RAM x2
Abit NF7
Tbred B 1700+ (@166x11)

 

[Killrose]

I see your other post too. The PCB layers and quality make up good, true PC2700, not just the chips.

 

[Actaeon]

Try and bump the voltage on the memory and try again?

 

[CraigRT]

Originally posted by: Actaeon
Try and bump the voltage on the memory and try again?

yep for sure
6ns should run at 333, so yeah... PCB quality as mentioned may be a problem... but technically 6ns = 333.

 

[barrese]

Well I bumped the voltage to 2.7v and it will run at 333, but nothing higher. If I try upping the voltage to 2.8 (the next setting up on my Abit NF7), my BIOS freezes. So I guess I'll have to be happy with what I've got. I wasn't expecting alot, but it definitely doesn't appear to be very good quality memory (then again it was only $5 a stick after rebate so I shouldn't really complain).

 

[CheapTOFU]

1/ (6) = 0.1666667

6ns -> 166mhz (333mhz ddr)

 

[jiffylube1024]

Yes 6ns does mean PC2700 however many manufacturers produce memory that can't hit it's rated speed so they mark it down as slower memory. The do this in video cards ALL THE TIME, like putting 2.8ns memory on a GF4, etc.