Opteron 165 OC help

Joined
Apr 28, 2005
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585
OK guys i have a problem and i cannot figure it out. I just received my Opteron 165 yesterday and I am unable to get beyond 210MHz HTT. I have dropped the HTT multi to 3X, the ram divider to 1:2, and even tried upping the Vcore to 1.45. Everything is the same as the rig in my sig except the PSU is a 700W FSP unit, i have 2x 7900GT's, and the CPU is now an Opteron 165 CCBBE 0610 DPMW. This stepping is supposed to rock so I must be missing something.
Any ideas?
ED: fixed the sig to reflect recent HW changes
 
hm, I'm stumped.


perhaps it has something to do with your super super low divider? You shouldn't really need to run a divider, I'd imagine that ram could easily do ddr 450

also, are there any bios updates available for your motherboard?
 
i am running the latest bios revision (20). It is a modded version of that bios done by Tic-Tac and i have had amazing results with my 3500+ using the same bios so i doubt that is it. I will try without going so low on the ram divider and see if it is just a bug or something. thanks for the suggestion i had not thought of that. I have not tried running the ram above DDR420 (which it did with stock voltage), but i kind of doubt it will do 450.
BRB with results using a higher mem divider.
 
try cranking the vdimm and not running at cas2. I have trouble believing that corsair xms won't do more than 210mhz...
 
Up your timings a lil on your ram and see if that helps at all. That was my problem :x
 
forgot to mention that i did relax the timings on the RAM when i started all of this.
switched to 333 rather than 200 on the RAM divider and that seems to have solved the problem. It looks like my AN8 doesn't like running my ram at DDR200 lol! Dual priming right now with clockgen. So far I am at 2.1GHz and rising.
 
looks like you've got 4 sticks of ram plugged in. have you tried seeing how well you OC w/ only 2?
 
That is just about what I was going to say! Get just 2 sticks in there and also make shure your PCI frequency is locked. Good luck. Currently working on my own OC with a new mobo. At 2.7Ghz on 1.26V right now.
 
^^
I also would recommend finding your max OC with only 2 sticks of RAM. Then, once you find the max OC, stick all 4 in and work from there. At least then you'll have found your max OC and know if your RAM is holding you back.

Not surprised it runs fine at 333 since normally the 939 boards default to downclocking the RAM to 333 when you have 4 sticks installed.
 
to be honest I could care less what the max OC with 2 sticks is because, i will NEVER run 1024MB again, and i am not spending money on more DDR. I highly doubt that the RAM is the problem seeing as the 3500+ venice went to 2.7 with 4 sticks and the 165 Denmark has an even better memory controller on board. All four sticks have run at DDR412 for almost a year with no problems already anyway.
2.2 and more to go!
Thanks for all the input guys keep it coming.
Also my board has NEVER dropped me to 333 with four sticks. It was one of the reasons i bought it in the first place. The only real disadvantage i have is being forced to run 2T.
 
OK so i am stuck at 243 HTT.
vCore is at 1.5 (load temp is under 50C)
vDIMM is at 2.7
PCI/PCI-e bus' are locked
RAM is dropped to 3-4-4-8 timings with 333 divider (puts it right at 200MHz with the 243HTT)
instant lockup after 243 and i am unable to boot with the RAM set to 266 or 200 dividers
I was running a 255HTT with teh previous proc and the board has gone above 275 before without issue so i dont think it is that.
I am thinking that maybe the Denmark Memory controller is more picky than the Venice core?
Should i try a half multi (like 8.5) and see if that gives me some more leeway?
I have had pretty good luck with half multi's before with this board (see sig)
 
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