A8N SLI/ 3200+ OC Help

[housecat]

yeah im going to make the swap to the DFI.. its a better board overall.. and its not a hard swap anyway.
it will age better as well as i plan on having this system for a long time.

i just want the SLI-D though.. everyone has the DR with that stupid frontX panel and extra crap.

 

[sxr7171]

Originally posted by: GuitarDaddy
I know you can push past 250 using a divider with the AUTO mem setting but it forces 2T.
I've tested at 325 x 8=2600 ddr333 ram 287 2T.

But in my testing its a hard limit at 245-250 1T regardless of divider. If someone is getting over 250 1T using a divider, I sure would like to know? Please post a linky

I'll tell you what I'm doing, since I'm not sure if that is giving me > 250 at 1T. I set the memory limit to 333MHz manually in the DRAM settings and then also set it to 1T manually. I can take it to around 280MHz with multiplier at 9.5 to get 2660MHz. My memory runs at 221MHz. It boots and runs fine even games, but Prime 95 brings it to its knees. I'd like to get my RAM to run higher (yes, I ended up getting the patriot LLK RAM you recommended), but trying 290 x 9 didn't work. I wonder if I am motherboard limited or RAM limited and from what I'm reading I'm probably motherboard limited. I guess I can try setting 2T manually to verify.

 

[GuitarDaddy]

Yeah your running 221 1T well under the limit. Very nice overclock! 2660mhz!
I haven't experimented with the 9.5 multi, I'll have to try that. Best I've been able to get is 2628.

 

[sxr7171]

Originally posted by: GuitarDaddy
Yeah your running 221 1T well under the limit. Very nice overclock! 2660mhz!
I haven't experimented with the 9.5 multi, I'll have to try that. Best I've been able to get is 2628.

I've actually taken it down to around 2620MHz, since it didn't seem to make a difference in the Ntune benchmark. It still can't last more than a few minutes in Prime 95. I remember having to go to around 2550 to run all night on Prime 95.

I actually thought you were talking about "FSB" when you said 250MHz. I guess if the OP sets a memory divider he can get his OC up without having to resort to 2T.

 

[housecat]

I'm going to try that as well.. just for more input.

Ok, with auto ram timings and 1T, 333divider and 9.5x multi I got up to
265cpu freq and 2517mhz until it crapped on me.

We'll see what the DFI does for me, maybe nothing.. but either way its a superior board at stock settings so it wouldnt be a horrible swap if it didnt improve things anyway.

But I've seen alot of ppl on sites like OCP say how they couldnt get anything for a OC on this asus, then they got the DFI and all of the sudden they got like 2.7ghz out of it. I dont think I have that kind of chip based off these results.. but you never know.
I just dont trust this Asus to get the maximum out of my hardware.

 

[sxr7171]

Originally posted by: housecat
I'm going to try that as well.. just for more input.

Ok, with auto ram timings and 1T, 333divider and 9.5x multi I got up to
265cpu freq and 2517mhz until it crapped on me.

We'll see what the DFI does for me, maybe nothing.. but either way its a superior board at stock settings so it wouldnt be a horrible swap if it didnt improve things anyway.

But I've seen alot of ppl on sites like OCP say how they couldnt get anything for a OC on this asus, then they got the DFI and all of the sudden they got like 2.7ghz out of it. I dont think I have that kind of chip based off these results.. but you never know.
I just dont trust this Asus to get the maximum out of my hardware.

What happens when you try 10x at that clock?

 

[housecat]

At 10x I cant get even close to 265, I get up to 250-251 and then I might make it up every bump.. but it locks the PC up and reboots.. but usually it DOES reboot at the frequency into windows just fine.

Its strange.

I have not tried the 333divider at 250+ and 10x multi.. but I do know my memory can handle at these settings up to 530ddr from previous OC experiences on this board.

 

[TantrumusMaximus]

I am running over 2.5GHZ stable on a 3000+

I dropped the HTT multiplier down to x3 (It is insignificant dropping to x3) and 285HTT

Have you tried dropping to X3? Like the first response suggested?

I read an article somewhere (I think here!) that being under 1GHz on your HTT bus is insignificant (as long as you stay over 500Mhz) anything over 1Ghz and your stability goes downhill fast. Mine equates to only 855 which is 145Mhz less than default but I'm rock solid stable and my benches are still all higher than what they were at x4 with a lower HTT bus.

Hope this helps.

 

[housecat]

Originally posted by: TantrumusMaximus
I am running over 2.5GHZ stable on a 3000+

I dropped the HTT multiplier down to x3 (It is insignificant dropping to x3) and 285HTT

Have you tried dropping to X3? Like the first response suggested?

I read an article somewhere (I think here!) that being under 1GHz on your HTT bus is insignificant (as long as you stay over 500Mhz) anything over 1Ghz and your stability goes downhill fast. Mine equates to only 855 which is 145Mhz less than default but I'm rock solid stable and my benches are still all higher than what they were at x4 with a lower HTT bus.

Hope this helps.

yeah i have kept it below 1ghzHTT the whole time.

your rig is actually the one that finally encouraged me to go ahead and get into this new rig.. and im glad i did, but i dont think i'll be getting any 2.7ghz OC like you did.

im pretty satisfied with 2.4ghz or 2.5ghz. it will be nice to see if the DFI does anything different. it seems to work wonders for people.

 

[Leper Messiah]

the reason why 855mhz shows no difference, is because you aren't filling that tunnel. Its frickin' huge!

OP, from what you are saying right now, you've ran 10x250, 1:1 ram 1T 4x HTT. I would try, like 9x280 5:6 ram 1T 3x HTT. Raise Chipset voltage a couple of notches, and it won't hurt to up your Vdimm to 2.8v.

 

[TantrumusMaximus]

Originally posted by: L3p3rM355i4h
the reason why 855mhz shows no difference, is because you aren't filling that tunnel. Its frickin' huge!

OP, from what you are saying right now, you've ran 10x250, 1:1 ram 1T 4x HTT. I would try, like 9x280 5:6 ram 1T 3x HTT. Raise Chipset voltage a couple of notches, and it won't hurt to up your Vdimm to 2.8v.

That's a good suggestion. One thing I would like to know is how do you custom tailor the divider and still custom config the cpu settings without the divider changing back to "auto?"

When I try to do this I get an inverse relationship in the bios where if I change the jumperfree settings for the cpu then the divider changes back to AUTO, if I change the divider and go to the jumperfree settings they are put back to MANUAL!?!?

yeah i have kept it below 1ghzHTT the whole time.

your rig is actually the one that finally encouraged me to go ahead and get into this new rig.. and im glad i did, but i dont think i'll be getting any 2.7ghz OC like you did.

im pretty satisfied with 2.4ghz or 2.5ghz. it will be nice to see if the DFI does anything different. it seems to work wonders for people.

That is nice to know. Maybe the GEIL RAM you have isn't giving you the same range as the Corsair DDR500 RAM I bought.

 

[housecat]

Originally posted by: TantrumusMaximus

That is nice to know. Maybe the GEIL RAM you have isn't giving you the same range as the Corsair DDR500 RAM I bought.

That was my thought as well, but the divider takes the memory out of the equation and I've tried down to a 266divider. I have tested this memory up to ~530ddr on my current settings.

 

[TantrumusMaximus]

It's too bad my OC took a dump. I'm thinking about trying the DFI board myself. But I'm going to make a couple last ditch efforts to get this board to OC again, BIOS flash, simplify my configuration of H/W... just want to make sure it's not the mobo.