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Help overclocking AMD Phenom II X6 1055T - Page 2

post #11 of 29
Thread Starter 
Quote:
Originally Posted by Jahocowi View Post

You should increase the FSB a little at a time. Then test to see what is stable and what frequencies require a voltage increase. You also need to make sure you have proper cooling for the CPU as well. Especially if you are trying to hit 4GHz. Also, when you increase FSB you are increasing your RAM speed and NB/CPU speed. So, you'll have to play around with their frequencies/voltages as well.

I had a 1055T with an ASUS M4A89GTD PRO/USB3 MoBo, and I got it to 3.8GHz.

250 seems fine without any changes at all

when i go above that, programs start crashing and eventually get a BSOD. How will I know what I need to change?

Does this mean i need to decrease my RAM speed and NB/CPU speed?
Is DDR my RAM?
Edited by 13rock - 5/29/13 at 8:36pm
post #12 of 29
Quote:
Originally Posted by 13rock View Post

250 seems fine without any changes at all

when i go above that, programs start crashing and eventually get a BSOD. How will I know what I need to change?

Since you are just OCing your CPU, when you up the FSB make sure stuff like RAM and what not are close or below their initial speeds. You can play around with those speeds at another time. Past the 250 mark you want to start slightly increasing voltage. When you get into Windows you want to start stability testing. Programs like Prime95 are good ones. You want to run blend tests for a min of 12 max of 24 hours (24 is recommended) Keep an eye on all your cores. Full stability means none of the cores fail.
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post #13 of 29
Thread Starter 
Quote:
Originally Posted by Jahocowi View Post

Since you are just OCing your CPU, when you up the FSB make sure stuff like RAM and what not are close or below their initial speeds. You can play around with those speeds at another time. Past the 250 mark you want to start slightly increasing voltage. When you get into Windows you want to start stability testing. Programs like Prime95 are good ones. You want to run blend tests for a min of 12 max of 24 hours (24 is recommended) Keep an eye on all your cores. Full stability means none of the cores fail.

Okay, I'm at 3.6 and my temp is going to 50ish during the test. I had some google chrome crashes just trying to download the program, but so far the program isn't finding any-

core 3 just stopped working. Not sure what to do from here.

Turn down the voltage or the fsb? or up?
Edited by 13rock - 5/29/13 at 9:01pm
post #14 of 29
Quote:
Originally Posted by 13rock View Post

Okay, I'm at 3.6 and my temp is going to 50ish during the test. I had some google chrome crashes just trying to download the program, but so far the program isn't finding any-

core 3 just stopped working. Not sure what to do from here.

Turn down the voltage or the fsb? or up?

Increasing voltage will help with stability, but also increasing heat. What cooling solution are you running? It better be a beefy one if not you're going to permanently damage your CPU once it gets too hot. Just keep these temps in mind:
CPU CORE temp limit: 62c. The highest i've gone on a relatively hot day was 50c.
CPU SOCKET temp limit: 90c but best to keep it as low as possible. I keep mine under 65c with a H100i
Edited by RocketAbyss - 5/29/13 at 9:10pm
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post #15 of 29
Like Rocket said you need a decent cooling solution. Before going any further what do you have currently?

As for crashes, are you lowering your RAM speed and CPU/NB speeds when you increase FSB? And yeah, you want to increase voltage.
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post #16 of 29
Thread Starter 
Quote:
Originally Posted by RocketAbyss View Post

Increasing voltage will help with stability, but also increasing heat. What cooling solution are you running? It better be a beefy one if not you're going to permanently damage your CPU once it gets too hot. Just keep these temps in mind:
CPU CORE temp limit: 62c
CPU SOCKET temp limit: 90c but best to keep it as low as possible. I keep mine under 65c with a H100i

it was hovering around 50C during the test, so I have a little room. So voltage up a notch?
Repeat til stable, but not above 60c ish right?
post #17 of 29
Thread Starter 
Quote:
Originally Posted by Jahocowi View Post

Like Rocket said you need a decent cooling solution. Before going any further what do you have currently?

As for crashes, are you lowering your RAM speed and CPU/NB speeds when you increase FSB? And yeah, you want to increase voltage.

I'm not decreasing anything. Am i decreasing the voltage?

Would it be under Over voltage settings?

I see Memory Over Voltage as an option. I can lower it by .050 intervals
Under CPU-NB Over Voltage, I can't decrease the voltage, but I can increase it by .050 intervals
Edited by 13rock - 5/29/13 at 9:19pm
post #18 of 29
Quote:
Originally Posted by 13rock View Post

I'm not decreasing anything. Am i decreasing the voltage?

No. you want to decrease the speeds of other components.

FSB is tied to multiple parts. Like the RAM for example. RAM has a multiplier (like the CPU) that changes RAM speeds based on the FSB. So, in addition to OCing your CPU you are OCing your RAM and CPU/NB. Which makes it difficult to determine what is failing.
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post #19 of 29
Ok before continuing on your OC adventure, you must remember this: Increasing your FSB will result in your Northbridge(NB), HyperTransport(HT) and DRAM(Ram speed) increasing from their stock clocks as well. Take for example, at stock 200Mhz FSB, your NB and HT will usually be 2000Mhz while your RAM would be usually 1333Mhz or 1600Mhz or 1866Mhz and so on. But once you increase FSB, those numbers change accordingly, and since you only have the option of using FSB to overclock your CPU, you must remember to select the correct speeds for your NB, HT and DRAM once you have increased the FSB.

There are usually predefined values for the NB, HT and DRAM in your BIOS, which will be reflected and updated accordingly to your FSB. For example, you might not see 2000Mhz option for your NB and HT but maybe something like 2134Mhz. Likewise for your DRAM, you might see 1738Mhz instead of 1600Mhz and so on.

Thus, I must advise you that at your 286 FSB setting, find the closest value for your NB and HT to 2000Mhz. For your DRAM, find out what is the default stock clock setting for it by checking the ram sticks physically. It usually there with a number like: 1600Mhz 9-9-9-24 2T 1.5v and so on. Adjust accordingly as close as possible to that Mhz number and you're good.
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post #20 of 29
All you need to know. Max vcore should be around 1.49v for 24/7. Now at this voltage you will want good cooling. Make sure your CORE temps are below 62c. High temps may cause instability. HT Link doesn't increase performance and is best kept between 1800Mhz-2100Mhz. CPU NB on the other hand does prove to bee good. Around 2700Mhz on the CPU NB should be easy to get. There is an option for cpu nb voltage as well. At around 2700Mhz i think 1.32-1.34v should be enough. Your ram can also be further tweaked. Since you are running a Thuban, your ram would be able to go all the way upto 1900Mhz and even 2000Mhz if you are lucky. For these frequencies you may need to loosen ram timings and increase ram voltage. Max ram voltage would be 1.75v. Now coming to your chip. Your cpu should easily get upto 3.6Ghz but personally i feel that the sweet spot would be 3.8Ghz and with a lot of experience one would be able to reach 4Ghz. Now remember good cooling is required because once you increase all these voltages it heats up really fast.
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