The more I read about Asus A8N SLI boards

[Gulelin]

I really want to try doing some stuff myself, but I want to stay conservative at first. I was thinking lower the HTT to 4, and raise the FSB to 250, then change the mulitplier to 10. This would get me 2.5 Ghz CPU clock if I understand this whole thing right. I know I could get more, but that's where I want to start. What I'm wondering though, is do I have to change the voltage core the CPU as well? And should I clock the memory at 500 Mhz to keep it at a multiple of the FSB, or is the memory going to be changed to 500 just from changing the FSB?

 

[joejccva]

Originally posted by: Gulelin
I really want to try doing some stuff myself, but I want to stay conservative at first. I was thinking lower the HTT to 4, and raise the FSB to 250, then change the mulitplier to 10. This would get me 2.5 Ghz CPU clock if I understand this whole thing right. I know I could get more, but that's where I want to start. What I'm wondering though, is do I have to change the voltage core the CPU as well? And should I clock the memory at 500 Mhz to keep it at a multiple of the FSB, or is the memory going to be changed to 500 just from changing the FSB?

2.5ghz overclock is doable. Try leaving the default cpu voltage where it's at and see what happens, if it fails then up the voltage a little bit and keep trying. I wouldn't go past 1.55v for cpu. Also your overclocking depends on your ram as well. Since you are changing your FSB to 250mhz, your ram probably won't be able to run that fast so you need to run a divider. Go into bios and try changing it from Auto to DDR400 which will clock your memory at 200mhz. If that still fails when you boot, try DDR333 which clocks at 166mhz but then tighten your timings some. You really just have to play with it and see what works for you. Everyone's equipment runs differently and some can get better results than others. Don't forget that just because you set it to DDR400 and it doesn't work doesn't mean that you can't up the voltage on the ram to 2.9v. It might be stable after that. Etc etc etc.

 

[jacko123]

hello, joejccva, im new to this forum and i'v been reading your messages on how to OC a AMd venice 3500+ on a A8n-Sli motherboard.

I have bought the exact same motherboard lately, however, i am finding difficulties using the manual function, and im currently on the AI BOOST fucntion which only allows you to to over 10% MAX. However, i'v read reviews and it can be overclocked higher.

WOuld it be possible for you to post your settings for your BIOS on your mb onto this forum. Like the "JUmper Free Configuration", adnd CPU configuration. IT would be very helpful THank you. It's stable at 220 HTT, 220MHz Ram, and i have kept the Ram and CPU synchronous. Im quite new to the OCing business, but it seems quite interesting, hehe free performance for no $$$


I'v tried to overclock HTT 230, 11X = 2530 , Vcore 1.41 , however, the computer seemed to crash under Prime95 torture test.
Ram: OCZ Premium PC300 DDR 400 CL 2.5-3-3-7, (230 mhz)

Thank you

 

[Capt Caveman]

Rise your vcore to 1.5v and see what happens

 

[fstime]

I didnt read this entire thread but the Ultra-D is the BEST board for the A64 period.

Me and my friend both have modded the boards to the FULL SLI-DR version with a pencil or circuit writer!

I woulndt get the ASUS, although its a good stable board, it stinks at overclocking.



Just make sure you use a 24 pin PSU and something other then Corsair VS, OCZ Value VX if possible.

 

[Capt Caveman]

Originally posted by: BouZouki
I didnt read this entire thread but the Ultra-D is the BEST board for the A64 period.

Me and my friend both have modded the boards to the FULL SLI-DR version with a pencil or circuit writer!

I woulndt get the ASUS, although its a good stable board, it stinks at overclocking.



Just make sure you use a 24 pin PSU and something other then Corsair VS, OCZ Value VX if possible.

Should have read the whole thread. Saying Asus's boards stink at overclocking is pretty ignorant and noobish.

 

[Fisher999]

I don't have any "issue" to discuss at this time but I recently purchased the Asus A8N-SLI for a new system build and I'm happy to have "found" this thread.

I am aware of the "1T issue" and the lousy stock hsf. I have already received the replacement Asus fan from Asus (which basically is the fan they use on the deluxe SLI board and is not much more reliable than the original) so I have also purchased a Zalman NB47J passive cooler based on information I obtained at this Anandtech thread.

 

[monster64]

I got my a8n-sli non deluxe board and havent had a single problem what so ever. Cpu at 2750 (3500+ venice @250x11) at 1.55 vcore at 250 fsb and ram at at 2.5-4-4-7-1T. The stock chipset cooler is running fine. I dont know why so many people rant about this board. I also have an xp-90 and everything fits without a problem. Infact, the heatsink, because it isnt a simple cube like the stock amd one, it leans over the passive heatsink on the mobo (nearly touching) and helps it cool better. I could boot windows at 2.5-4-4-8-1T at 2805 mhz 1:1 (255x11) at 1.6 vcore. Prime 95 failed though in 3 secs. 😱

 

[GuitarDaddy]

There still seems to be some confusion about the memory dividers, so I'll clear it up for you guys. The max mem clock settings are the memory dividers and DO NOT limit the ram speed at the rated numbers.

DDR400 = 1:1 runs mem equal to the HTT speed HTT=240 mem=240
DDR333 = 6:5 runs mem at 5/6 the HTT speed HTT=240 mem=200
DDR266 = 3:2 runs mem at 2/3 the HTT speed HTT=300 mem=200
DDR200 = 2:1 runs mem at 1/2 the HTT speed HTT=300 mem=150


And unless your using the Premium version of this board always keep memory below 250mhz 1T

 

[deepinya]

Ive been using my sli-deluxe for a few months now running it 24/7. I do not o/c but it plays w/e games/apps I throw at it and I havent crashed ONE TIME other than when I had bad RAM.

for me:
stability > o/c