Help with AI7 and 270FSB+

[thegamer36]

Hey peeps. I have the following right now:

Abit AI7 Motherboard
Mushkin Level II 1GB (2 sticks of 512mb) memory
Pentium 2.4c M0 Stepping CPU

I am currently running with the following and passing the Prime95 test with no issues:

270 FSB
CPU Voltage 1.6

DDR Voltage 3.10 with the following timings (5:4 ratio, 2,2,2,6 timings)

If I try anything above 270FSB, I cannot pass even one iteration of Prime 95. I know this is a nice overclock but eveyone always wishes for more. I have a Zalman 7000 alcu for cooling the cpu.

My current temps are: 31c and have seen as high as 44c on the cpu.

Does anyone have any ideas on what to try to get above the 270 FSB mark. Thanks in advance.

 

[Arch]

Try lowering your memory timings. Its possible that you are right at the edge of stability with your memory. Lower the timings back to default, set the voltage to 2.8v, then try to go higher.

That will help you eliminate the RAM from the equation and then you can focus on your CPU.

 

[shortbus_]

try 2-3-2-6 timmings. thats what i have to do to pull a 5:4 @ 270fsb on my mushkin but you probably only need about 2.8vdimm for that.

 

[reverse]

definately drop the mem timings

 

[wingman99]

I had the same problem with the Mushkin Level II 1GB (2 sticks of 512mb) memory it clocked worse for me 214 best. I have no memory voltage 2.8 max. Untill i got Hyper X 3200 2 sticks of 512mb on a ic7 2.8 vdim running fsb 278 timing 2-5-3-2 mem speed 222 mem 86 stable. it will probably go more with looser timings.

 

[raven]

What is your GAT set to? you should set it to Auto (Try enabling turbo or something higher afterwords) , Auto, Auto, Disabled, Disabled.

That helped me to get a nice overclock! Also, you could, instead of having your memory in slots 1 and 3, try moving them to 2 and 4. Apparently some people have had achieved a better and more stable overclock having their ram in these slots. But in a worse case senario, your memory could be just hitting its limit. You could try goign to a 3:2 divider, but then your memory will run at a slower speed. People go to a 5:4 divider mostly because with a 5:4 divider, they can achieve a higher overclock from a 1:1 divider and their overclock would compensate for the loss of the 1:1 timing. But now if you go to a 3:2 divider, your chip would probably be the limiting factor, and some people can not justify the overclock for lower memory speeds.


raven