1st time OC, need some help

thebeginning

thebeginning

New Member
I'd like to try a little overclocking on my new pc (in my sig), but so far I've run into some problems. I tried OCing just a little (changed the multiplier from auto to 10x, bumped the core speed to 210Mhz) and it worked fine, but I can't go any higher than 2.1Ghz. I know that can't possibly be my ceiling since I've seen similar systems hit 2.7 or 2.8Ghz easy. I can't even find the Vcore or Vdimm settings anywhere in the BIOS for some reason, if I could I would try bumping them a little. I've read the OC101 pages, but I couldnt seem to actually do what I was trying to do. So anyways, some help would be much appreciated. If you need screenshots of certain BIOS pages let me know.
 
I have the same board as you, the vCore and vDIMM setting are in the genie BIOS settings, right under where it shows what the actual voltages are. You should easily be able to hit higher. What happens when you try to hit higher?
 
Well, now that you know where it is, have you been raising the vCore at all? This seems strange to me, you have nice RAM, so you shouldn't need a divider yet, you've only overclocked by 100Mhz, and yet you need to raise the vCore. Have you brought down the LDT multiplier to 3x?
 
no, should I?

edit: tried it, and pushed to core to 220. it just loaded the system info (before booting the OS) over and over without getting past that. I ended up pulling it back down to 210. There's got to be something strange going on...
 
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His RAM should work even higher than that. This is strange. Put in place a memory divider and lower the LDT to 3x.

Just wondering, are your temps still reasonable?
 
my temps were around 34C or so, and that's after a fair amount of usage. how do you do a memory divider? sorry, still a noober at this stuff...


how do you set your RAM higher? I found where I can set my FSB to 200mhz and lower, but I can't seem to find anything higher. I'll set it to 166 and try it.

okay one LAST question...I found a setting where you can change the RAM speed...you can choose normal, fast, or fastest. what is the purpose of that and what should I set it on?
 
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"normal" "fast" or "fastest"?? weird... it should be more specific than that. there should be multiple speeds like 200mhz, 166mhz, 133mhz, and 100mhz (ddr400, ddr333, ddr266, and ddr200, respectively). if you lower to 166mhz, then its 166mhz for every 200mhz the "core speed" is (as you keep calling it).... anyways... lets say you have 210mhz... that means 166mhz will ultimately make your ram run at 174.3mhz. if you raise "core speed" to 240mhz like i did, and lower ram speed to 166mhz, then it will run at approximately 200mhz which is ddr400.
make sense?
sounds to me like you just need a lower hypertransport multiplier and a memory divider (166mhz)
oh, if you have to choose between normal fast or fastest, it will actually work on normal if anything.
 
thanks for the input. I'll try lowering the HTT multiplier down to 3x or so and pulling the mem clock to 166mhz. I can change both the speed (200mhz->166mhz and so on) and that weird 'memory speed' thing from fast to fastest or normal or whatever. I'll try it on normal. I'll push the core clock up to 220mhz and try that first and see if it works... Any chance any of this will mess up the PC? if anything gets messed up I'm totally screwed.
 
well I tried what yall said and was able to do it. Got it up to 2.5Ghz easily, so i'm pretty happy about that. It started to slow down after that (at 2.55 the OS was quite slow), not sure If I need to bump my voltages or latency timings (???) or if that would help. found out that the 'normal, fast, fastest' thing was the DRAM response time. weird.

Is there anything else I should change, voltages, timings, anything? I'd like to push it a bit more and then not worry about it (2.6 or 2.7 would be nice). Also, how do you guys check your system temps? before I've always just looked in the BIOS, but is there some software for that, or software that you can use to change fan speeds?

ok one LAST question. how do you OC your gpu? for some reason I thought it was available in the card's drivers, but i was obviously mistaken. thanks for the help!
 
A lot of the overclock claims made about the Opteron 170 are baloney! Most will never hit 2.6 Ghz and be prime95 stable. A lot of people figure that if they can get it to boot up at a certain speed, word process, and surf the net that it's stable. But in the end most will never get past 30 minutes of prime95. There are some that were made during certain dates on the calendar that do better than others which is often erroneously referred to as stepping numbers. But you can't oder them by those numbers and as always each individual processor is different.
 
stepping numbers means they actually changed the processor physically... or upgraded heat efficiency of the processor. a processor bought at a later date would be more stable if anything, they get rid of problems they don't add them.
 
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