900mhz ram showing up as ddr2 800 on boot up?


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Does it say 800MHz or PC6400?

When I'm OCing i need to tune "down" the speed since the memory speed follows the FSB. This results in that PC5300 or PC4300 shows up at startup, eventhough the RAM is running at say 800MHz.

Regarding another matter: I hope it also states Dual channel?

*edit*

I saw on Asus.com that your board only supports (original) speeds up to 800MHz.

  Quote
Dual channel memory architecture

4 x DIMM, max. 8GB, DDR2-800/667/533, ECC and non-ECC, un-buffered memory

I guess you have to "OC" the rest of the way.

What's your system specs'?

I know because of my OC the system shows mine running at 266Mhz even though it's actually at 400Mhz. But is is probably also the fact that the board only supports up to 800Mhz on the board. You aren't goinmg to get 900Mhz out of it without overclocking.

The system specs are:

550w PSU

AMD Athlon X2 5000+

2GB (2x 1gb) OCZ 900mhz ddr2 ram

asus m2n32 sli deluxe

320gb sata2 hard drive

How would I even go about overclocking the ram? Will it cause the temps to shoot up? Will it cause the ram any harm?

cheers

unlink the ram and push it to 450MHz (900MHz effective outcome) your board won't set 900MHz itself as it will only accept 533 667 800 and 1066 to get 900 1000 or similar speeds from these non-conforming dimms you need to set the parameters yourself.

You will most likely need to set the Voltage aswell as many 800MHz modules use 1.8v while the 900+ use 1.9v to 2.2v (Check which your RAM requires).

Temps will never shoot up... maybe 3 degrees hotter then before... if they already can go on 900 mhz why care with overclocking..

but then again maybe ur mobo wont allow it cuz of the processor

You don't need to OC your CPU if your multiplier is unlocked. Tune up the FSB and the RAM will follow, at the same time lower your multiplier so your core won't be OC. For example: [FSB]*[Multi], 250*12 = 3000MHz, "same as" 300*10 = 3000MHz but your bus has been OC 50MHz --> 100MHz OC of your memory. No need for changing the vcore, only vdimm. Make sure you lock you PCI-slots though (PCIE to 100MHz, PCI to 33,33MHz)

Hmmm i've set the dram voltage to 2.1v (the voltage it says on the OCZ site), i'm not sure about the FSB etc and don't want to balls it all up so i'll probably leave it at that (if just changing the voltage will make any difference?)

  randomnut said:

Hmmm i've set the dram voltage to 2.1v (the voltage it says on the OCZ site), i'm not sure about the FSB etc and don't want to balls it all up so i'll probably leave it at that (if just changing the voltage will make any difference?)

Altering the voltage won't make any performance difference. It may only help you overclock a bit further in terms of stability.

It's difficult for me to help you as I don't have an AMD system here and I've not used an AMD DDR2 system as yet.

on my Intel system I would unlink the DDR2 RAM from the FSB and set the RAM myself to 900MHz Effective, I would also set the voltage to 2.1V and set the timings to C2.

I don't know how it's done on AMD platforms as they don't even have a Front Side Bus due to the integrated memory controller. I think maybe you have to up your HT to overclock the RAM.

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