DDR2-800 reading as PC4300 not PC6400

[wstcoaster07]

I just installed 2GB of OCZ rev2 DDR2 800 memory but in the bios it reads memory running at 4300. glanced through the bios but didnt see where to change it, any ideas on the problem?

 

[Assman]

what mb do you have?
Have you tried bios update?

 

[n00g7]

I just installed 2GB of OCZ rev2 DDR2 800 memory but in the bios it reads memory running at 4300. glanced through the bios but didnt see where to change it, any ideas on the problem?

I'm guessing you are on AM2.
If it's a chip with an odd multiplier, that would be your problem. If that is the case, nothing you can do about it except buy a new CPU or run the memory at 667... or slower. If you can lower or raise the multipier, do that obviously, and it should work.

 

[wstcoaster07]

Na, running a core2Duo E6600 on an asus p5WDH deluxe. going to try to update the bios

 

[n00g7]

I have a E6400, I run my memory at 667 and OC'd 30%. Just use the spec timings on the memory at the speed you want to hit and OC...

In bios I set mine manually at 667 4-4-4-12, and with 30% OC it's running at 864 same timings... It's corsair 6400C4, 4-4-4-12 at DDR800.

If you can set to 667 and are OCing, don't worry about it.

 

[Crashman]

EZ answer: You didn't buy DDR2-800, you bought DDR2-533. Nearly everything OCZ sells is "factory overclocked". Same goes for other memory manufacturers. Your high-speed RAM will almost always be DDR2-533 or DDR2-667.

Because you got RAM rated at an overclocked setting, rather than a standard setting, you must first raise voltages, to stabilize the overclock, before you can raise speed stabley.

And because you must raise the voltages in order to overclock the RAM to their rated speed, the RAM defaults to something less. Your system wouldn't boot if it detected DDR2-800 and tried to run it at the standard 1.80V.

What I'm telling you is, this is normal. You bought something less than DDR2-800, because real DDR2-800 modules don't exist yet. If they did, they'd be at least CAS5.

 

[ArbY]

Yeah, if you're using the OCZ RAM seen here, you're going to have to raise the voltage to 2.1V manually.
It should acquire the correct timings/speeds once you do that.

 

[Crashman]

I've always had to change my timings/speeds manually. Some RAM...and some motherboards...feature EPP, extended SPD values that allow the board to automatically apply an overclocked RAM state.

 

[wstcoaster07]

was able to set it manualy to 800 with 444 15 timiings without changing the voltage and no problems yet. updated bios to 1101