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** Oblivion ** Why does it hate my overclock?!!

post #1 of 19
Thread Starter 
For some strange and probably arcane/cryptic reason ... Oblivion runs much slower (re: FPS) when I'm overclocked than it does at my stock speeds.

E6400 @ 3.5ghz -> 20 to 30 FPS outdoors
E6400 @ 2.13ghz -> 30 to 40 FPS outdoors

...

What gives?

My hunch is that it's tied to the corresponding memory overclock which goes hand in hand with the CPU clock ... since I've heard Oblivion is very memory intensive ...

But really ... I have no actual idea why this is the case.

For now, I'm simply using clockgen to clock down whenever I play Oblivion.

So strange!

Anyone have any ideas?
    
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post #2 of 19
Quote:
Originally Posted by s1rrah View Post
My hunch is that it's tied to the corresponding memory overclock which goes hand in hand with the CPU clock ... since I've heard Oblivion is very memory intensive ...
need more details of the overclock to be sure. some programs are more sensitive than others to overclocking as i'm sure you know, imo oblivion isn't really one of them.

it could be that you spelled it "ObLiVIoN"
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post #3 of 19
Thread Starter 
Quote:
Originally Posted by psycho_terrorism View Post
need more details of the overclock to be sure. some programs are more sensitive than others to overclocking as i'm sure you know, imo oblivion isn't really one of them.

it could be that you spelled it "ObLiVIoN"
Okay ... I changed the spelling (I'll try anything at this point) ...

    
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post #4 of 19
Quote:
Originally Posted by s1rrah View Post
Okay ... I changed the spelling (I'll try anything at this point) ...

lol fair enough.

regarding the actual problem, when you clock down, i assume you are just lowering the multiplier right?

if so it's not likely a memory issue, since the timings/command rate etc for the memory certainly wont have been relaxed that way and your fsb wont limit it's speed...
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post #5 of 19
Oblivion is very sensitive to overclocks.
post #6 of 19
Thread Starter 
Quote:
Originally Posted by psycho_terrorism View Post
lol fair enough.

regarding the actual problem, when you clock down, i assume you are just lowering the multiplier right?

if so it's not likely a memory issue, since the timings/command rate etc for the memory certainly wont have been relaxed that way and your fsb wont limit it's speed...
No, not lowering the multiplier per se ... I'm using the software Clockgen to lower the frequency which is applied to the multiplier, IE > reduce from 238x8 to 200x8 or something similar).

My daily overclock of 3.5ghz (that's 1.5ghz over the stock speed of 2.1ghz) is actually very simply applied ... I just up the CPU freq to 238x8 and then give it the CPU volts and mem volts it needs to be orthos stable. Pretty much everything else is left at [AUTO].

Don't know why Oblivion finds this distressing ... but it does ... runs much much smoother/faster at stock speeds. Everything else I do with this machine, though ...from audio/video work to imaging/design ... absolutely LOVES the overclock ...

Strange ...
    
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post #7 of 19
Thread Starter 
Quote:
Originally Posted by Unstableiser View Post
Oblivion is very sensitive to overclocks.
Have you noticed similar problems with overclocking and Oblivion?
    
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post #8 of 19
Quote:
Originally Posted by Unstableiser View Post
Oblivion is very sensitive to overclocks.
yeah but only in terms of stability, low frames is a different problem, unless there are other indicators.

for example i'd expect to see more stuttering or visible artifacting than low fps if the overclock was really to blame.

edit:

yeah you may be right, underclocking your memory could be your problem, try lowering the multiplier and see how it turns out with the memory at full speed.
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post #9 of 19
I would say probably issues tied in with the memory.

Are you running 1:1? If so what Frequency and type of RAM do you have?

Also on a side note have you tried gradually OC'ing and then running oblivion like gong from 2.1 to 2.2 and so on and so forth to see where that lovely FPS brick wall is? hehe
    
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post #10 of 19
Thread Starter 
Quote:
Originally Posted by Nechen View Post
I would say probably issues tied in with the memory.

Are you running 1:1? If so what Frequency and type of RAM do you have?

Also on a side note have you tried gradually OC'ing and then running oblivion like gong from 2.1 to 2.2 and so on and so forth to see where that lovely FPS brick wall is? hehe
Mem is at 1:1 ... don't know if I can change it with a P5B Dlx.

Mushkin 800mhz ... very good overclockers according to past 4.2+ghz benching ...

Memory volts are at 2.25v over the stock volts of 2.1v.
    
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