Ocing a 1090T BE

[SmoulderingCircuits]

I get 4 on my Phenom 965. Had it up to 4.2 before if i massively put the voltages up.

To get 4, I go:

Multiplier = 18.5

FSB = 216

Lock DRAM to 1333, but due to the overclock that will be around 1450mhz.

Then CPU Voltage - 1.45

CPU NB (i think) - 1.25

And I put my RAM to 1.55, but that will be completely dependent on your type of RAM.

The main issue you'll see is if you lock the RAM to 1600mhz because Phenom processors cant handle those speeds well enough.

This will obviously be dependent on your chip as they are all different, but it's worth a try

Different chips: can't compare.

 

[jamesriley94]

I know that completely, but same architecture it's still worth a try.

The point I was trying to make more was about the RAM and not allowing it to go above 1600mhz.

Also the fact that if you increase the FSB to the extent he has then AMD can never reach that high a speed stably.

More on the multiplier and less on the FSB has always worked better for me. I only use the FSB as fine tuning once I get as high as I can on the multiplier

 

[jits h]

Cleaned cooling system yesterday, new thermal paste and currently running Prime95 @ a 3.8Ghz OC. It seems stable, need more testing though

 

[blair]

yea my MB was set to shut down at 75C your hit 80C way to HOT

 

[jits h]

Quick update, got back to 4GHz using 20 multiplier and 200 FSB. CPU voltage is at 1.396 (Everything else is on auto). Getting around 47-48*C when running prime95, gonna leave it at this clock speed and leave prime95 running. Don't know why last time I got into the 80's though, think cleaning + NT-H1 paste made a huge difference

 

[SmoulderingCircuits]

Quick update, got back to 4GHz using 20 multiplier and 200 FSB. CPU voltage is at 1.396 (Everything else is on auto). Getting around 47-48*C when running prime95, gonna leave it at this clock speed and leave prime95 running. Don't know why last time I got into the 80's though, think cleaning + NT-H1 paste made a huge difference

That's one dream chip if it holds up at that voltage ^^

Prime 95 doesn't stress every instruction set/ all of the CPU I've heard.

 

[jamesriley94]

That's one dream chip if it holds up at that voltage ^^

Prime 95 doesn't stress every instruction set/ all of the CPU I've heard.

It doesnt, but thats still far far far more than any other program you'd actually use would test it, so if it's stable with prime, it'll be fine with everything else

 

[jits h]

That's one dream chip if it holds up at that voltage ^^

Prime 95 doesn't stress every instruction set/ all of the CPU I've heard.

It holds up, but if I open up a few google chrome tabs, I'll just bluescreen. Seems im back to square 1 now

 

[SmoulderingCircuits]

It holds up, but if I open up a few google chrome tabs, I'll just bluescreen. Seems im back to square 1 now

If anything crashes your OC, it's not stable.

Try OCing just your CPU/NB, it improves performance quite dramatically.

For 1600Mhz memory, you want a 2.4Ghz CPU/NB at least, to fully utilise it

CPU/NB minimum RAM utilisation frequency = Data rate x3

Seen as my CPU/NB is stable at 3GHz @1.35v on the stock CH4 cooling, yours should be too. If not, try 2.8Ghz. If the OS freezes about 30 minutes in to Prime 95 or anything else later on, it's an unstable CPU/NB.

 

[Mrboxfacetramp]

You might want to look into a new cooler to get some of the dream clocks that might not be available on the cooler you have right now ;]

 

[SPS]

4GHz at those volts would have been incredible. OCCT is a pretty good stress test.

 

[WYP]

4ghz at under 1.4v would be a brilliant result, real shame. mine requires 1.42v for a stable 4ghz, temps never reach 50 degrees.

you should try upping the cpu/nb , at 2600mhz i saw a 6-8% improvement in cpu benchmarks at 4ghz which is well worth the effort. even many gpu benchmarks had a decent performance gain. it is especially benificial in single treaded apps and even solidworks seems faster.

 

[Master&Puppet]

Yea I had an 1100t which ran at 4ghz @1.435. I could have trimmed the fat off the volts a little but not 0.5 lol.

If I turned off 2 cores (effectively making it a 965) it would make 4.2.

 

[jits h]

4ghz at under 1.4v would be a brilliant result, real shame. mine requires 1.42v for a stable 4ghz, temps never reach 50 degrees.

you should try upping the cpu/nb , at 2600mhz i saw a 6-8% improvement in cpu benchmarks at 4ghz which is well worth the effort. even many gpu benchmarks had a decent performance gain. it is especially benificial in single treaded apps and even solidworks seems faster.

If anything crashes your OC, it's not stable.

Try OCing just your CPU/NB, it improves performance quite dramatically.

For 1600Mhz memory, you want a 2.4Ghz CPU/NB at least, to fully utilise it

CPU/NB minimum RAM utilisation frequency = Data rate x3

Seen as my CPU/NB is stable at 3GHz @1.35v on the stock CH4 cooling, yours should be too. If not, try 2.8Ghz. If the OS freezes about 30 minutes in to Prime 95 or anything else later on, it's an unstable CPU/NB.

Upped the NB/CPU voltage to 1.3 ish, and the speed to 2.4GHZ. It does seem much more stable and normal programs are loading much quicker, seems it's more stable

 

[SmoulderingCircuits]

Upped the NB/CPU voltage to 1.3 ish, and the speed to 2.4GHZ. It does seem much more stable and normal programs are loading much quicker, seems it's more stable

Glad to hear it

 

[jits h]

Been running prime95 for 6 hours now, temps of 52*C maximum. Fair to say its stable?

 

[SPS]

Been running prime95 for 6 hours now, temps of 52*C maximum. Fair to say its stable?

Try some games out as well

 

[SmoulderingCircuits]

Try some games out as well

Also some video/ photo editing software if you have any. Try transcoding a copy of fairly large video in to a few formats and see if it holds up. If it does, it's more or less stable.

 

[jits h]

Try some games out as well

Also some video/ photo editing software if you have any. Try transcoding a copy of fairly large video in to a few formats and see if it holds up. If it does, it's more or less stable.

Given the gaming a tryout. Seems to be in working order, don't have any video editing software though