Almost done with my 939 OC!

[johnnq1]

without bumping voltage, my cpu reached 2.9 (still have to test 30 minutes in prime) and my memory reached 226mhz (still have to overnight memtest)

so:

i can keep the 10x multiplier in my opteron 170

10/ (2/3) divider (266 mhz, correct?)= 15

2900/15=193.3

this is perfectly fine (would be cool if i got an even 3.0 on my cpu ), but my memory is clocked a little low.

 

[Farmer]

What?

What speed is your memory rated, and what was the stock speed of your Opteron?

You have a 2/3 divider, so, yes, 400MHz DDR would run at 266MHz. You have overclocked your HT to I guess 289MHz. Your HT multiplier is still 10, not 15.

Congrats on overclock. I can barely get 200MHz out of my Clawhammer with a 5/6 divider; its definitely not the memory though.

 

[johnnq1]

my mushkin sp3200 is ddr400.

is 289 an increment? i used clockgen and was stable until i hit 3 ghz...2.9 should be very safe. after this post i'm gonna go back and bump the voltage a tiny bit.


i'm pretty sure my math is correct. yes, my cpu multiplier is still 10, but my ram divider is 15. what the hell is a ht multiplier??



ouch...200mhz is weak. is your mobo limiting you?

 

[Farmer]

I guess you set your HT/FSB/whatever you want to call it to 290MHz, then. I mean I don't know, you set it. It's just a RAM divider of 2/3 doesn't allow for an integer CPU frequency when using a HT multiplier of 10 (you get 2899.5... MHz, etc), which absolutely makes no difference.

I mean by HT multiplier what you mean by CPU multiplier. I mean by RAM divider the HT:RAM frequency ratio (which is 2/3). What you mean by RAM divider is the RAM frequence:core frequency ratio, which I'm not used to using, but, sure, it is 15.

Also, good job getting that close to 200MHz. Ideally you could go for 7/10 divider, if that were an option.

I was just a little confused about essentially what your OP was about. So I guess my point now is good job and good luck.

200-300MHz is average for the big Clawhammer cores (the first A64 core). And you're right, my motherboard doesn't help. The only core voltage option is +0.05V, which brings me to 1.60V. I kind of want to see what 1.65V does, if that can push me to 2.3GHz (at this point, with 5/6 or even 1/1 or any RAM divider, 1.6V at HT 230MHz I can't boot into Windows). I mean at HT 220MHz, 5/6 divider I get a RAM clock of 183MHz, which is not as close to 200MHz as I would like. The motherboard is a S754/PCI-E board, just a stop gap so I don't have to use AGP graphics cards. I mean, I don't really need my computer to be faster; it can run pretty much anything (GRAW2, Lost Planet) fine except for the CPU-intensive Flight Simulator X.

 

[johnnq1]

Originally posted by: Farmer
Also, good job getting that close to 200MHz. Ideally you could go for 7/10 divider, if that were an option.

i'm pretty sure my only options are 200, 266,333,and 400ddr speeds in my asus a8n-sli. i can double check.


my ldt multi should be set to 3x, right?