ASUS P5Q3 Deluxe discussion

[Sav]

sav, BND_MOD:

Try setting tRFC to 82 and tRRD (Act to Act delay) to 8-10

And read post 661 on this matter, further up on this page (page 27).

Should help....

thanks, but it's possible run 1600 memory with this setting?

[Sav]

I confirm, with tRFC to 82, tRRD 8-10 and PL11 I have more stability but I had to change also memory divider and lose in memory read....







I think that with 2x1 gb (gtr) Pll 10 is possible if I set high memory divider.


@faina77
Validate is not a good "stabiliy" test

[Amurtigress]

[QUOTE=Sav;3287639]I confirm, with tRFC to 82, tRRD 8-10 and PL11 I have more stability but I had to change also memory divider and lose in memory read....

Sav:
Depends. One pair of my Corsairs works at 1600 when using the XMP profile.

But four modules...bear in mind that the P45 is only specified by intel to run four modules at 1333. ASUS' 1600 specification almost ONLY means one pair of modules...using four 1600s makes you lose overclocking ability anyway. it is a law of physics. If you are putting more load on the same lines to the chipset it will diminish the signal quality. My CL9 modules max out around at 1440, maybe some CL7 modules might make it that far.

[Sav]

yes, but I use 2x2Gb

I think we must find a correct memory divider according with fsb frequency.

Now with high tRFC and tRDD I can do this:





With old setting I can't do spi or everest because I had freezing

[Amurtigress]

yes, but I use 2x2Gb

I think we must find a correct memory divider according with fsb frequency.

With old setting I can't do spi or everest because I had freezing

Well, frankly, I think it's not worth the hassle to try and get 1600 stable. I've seen posts stating that people are getting better throughput at 1333.

2 GB modules are a bit more of a load for the NB, but not as much as 4x1 GB. It is possible that you cannot get 1600 at all.

Other than that, Sav, I don't know your full timing settings, hence I can't tell you more than that.

[Sav]

Well, frankly, I think it's not worth the hassle to try and get 1600 stable. I've seen posts stating that people are getting better throughput at 1333.

2 GB modules are a bit more of a load for the NB, but not as much as 4x1 GB. It is possible that you cannot get 1600 at all.

Other than that, Sav, I don't know your full timing settings, hence I can't tell you more than that.

Yes, I think so

I think that we must accept a compromise with this motherboard (or chipset), because it's very fast with 1333 memory, but if is possible for quick test I want to use 1600/1800 frequency

@d3885u

very nice, can you post prime setting?

[d3885u]

Yes, I think so

I think that we must accept a compromise with this motherboard (or chipset), because it's very fast with 1333 memory, but if is possible for quick test I want to use 1600/1800 frequency

@d3885u

very nice, can you post prime setting?

Did you mean my BIOS setting?
CMIIW...
for my daily setting I have 2 setting (saved @ OC Profile)...
1. CPU @4050Mhz (450x9) RAM @1800 7-6-5-18
Vcore 1,32v
Vdimm 2,04v
Vpll 1,54v
Vfsb 1,28v
Vnb 1,36v
2. CPU @4275Mhz (475x9) RAM @1900 8-7-6-21
Vcore 1,42v
Vdimm 1,82v
Vpll 1,54v
Vfsb 1,32v
Vnb 1,38v

but for 2000Mhz RAM...I used this setting...
Vcore 1,35v
Vdimm 2,2v
Vpll 1,54v
Vfsb 1,36v
Vnb 1,56v
Nbgtlef 0.570
Nb skew delay 200ps

BTW...anybody could help me..?Why I can't reach FSB 600..?