Need some help overclocking Phenom II 1055T

[El_Mayo]

Imagine my surprise to see that the automatic timings were at 7-7-7-19

Manually changed them now (assuming those are good settings) gonna try them out at FSB 250

 

[El_Mayo]

Okay so I know NOTHING about timings and I'm still crashing...... (If that's the problem) normally I'd use default or lower ram speed but dammit my RAM is supposed to clock high! That's why I imported it!

 

[Kantastic]

Okay so I know NOTHING about timings and I'm still crashing...... (If that's the problem) normally I'd use default or lower ram speed but dammit my RAM is supposed to clock high! That's why I imported it!

Your RAM is supposed to clock high, but you're overlooking other hardware limitations. AMD is notorious for having weaker memory controllers.

 

[El_Mayo]

Yeah, but I'm not aiming for 2600 tho, just 2200 ish or as high as it'll let me

 

[El_Mayo]

Gonna try AMD Overdrive tomorrow, can't get anything done in the BIOS properly

 

[Wrigleyvillain]

Hey Mayo thnaks again...London is amazing. Partly thanks to you.

Come in before Sunday and I'll buy you a fantastic dinner at St. Pancras.

Yeah I coulda sent a pm but this was more fun.

 

[El_Mayo]

On the surface I'm having more luck with AMD Overdrive. It's passing it's built in test, but gonna start running prime95 on it eventually

 

[El_Mayo]

I'm stable now at 225 FSB
however I had to underclock my RAM, which isn't ideal considering it overclocks well
Anyone got any advice on overclocking that?

 

[eidairaman1]

I'm stable now at 225 FSB
however I had to underclock my RAM, which isn't ideal considering it overclocks well
Anyone got any advice on overclocking that?

lowering timings on the ram itself will allow it to clock further, even increasing voltage but you need to keep it cool of course

 

[El_Mayo]

lowering timings on the ram itself will allow it to clock further, even increasing voltage but you need to keep it cool of course

I ran a memtest (booted off the disc) on the auto timings at 1800 and it passed
So now I'm thinking it ISN'T the RAM, but something else...

 

[eidairaman1]

I ran a memtest (booted off the disc) on the auto timings at 1800 and it passed
So now I'm thinking it ISN'T the RAM, but something else...

autotimings is one thing but running manual is a must for overclocking because when they are auto adjusted you dont know what the value they are running at

 

[HossHuge]

Hey El_Mayo. Here is how I run my 1055t. If your 1055t is the 95w version, you should be able to do better.

 

[El_Mayo]

Hey El_Mayo. Here is how I run my 1055t. If your 1055t is the 95w version, you should be able to do better.

http://img.techpowerup.org/120523/378.jpg

I'll try n copy your settings
What CPU speed is that?

 

[HossHuge]

3780mhz. I disable cn'q and everything in my bios but for some reason it still downclocks. I was worried at first but it's stable so....

Are you o/cing for gaming reasons?

 

[El_Mayo]

3780mhz. I disable cn'q and everything in my bios but for some reason it still downclocks. I was worried at first but it's stable so....

Are you o/cing for gaming reasons?

Yeah I am
My PC runs pretty quick as it is, so I'm not overclocking out of necessity
I figure at something like 3.6-4Ghz I'll be able to buy any card (I can afford) without a bottleneck

 

[El_Mayo]

With bus speeds that high you might need to be bumping your PLL voltage. Some AMD motherboards call it something else and I'm pulling a blank.

Right now, what kind of settings do you have for your overclock:

FSB, Multiplier, NB speed, HTT speed, and all the voltages you have access to for the CPU. Also how fast is your memory running and what is it rated for? Frequency and timings.

Timings are 11-11-11-39 I think:

Multiplier was 225
FSB: 2025
HTT: 2025
CPU Voltage: 1.225V

 

[El_Mayo]

3780mhz. I disable cn'q and everything in my bios but for some reason it still downclocks. I was worried at first but it's stable so....

Are you o/cing for gaming reasons?

I've copied your settings and windows won't even boot. It comes up before the os sayilng I've experience hardware failure due to overclocking and that I should revert my settings. I'm getting that error even at 250FSB.

Here's what I tried

 

[JrRacinFan]

Try dropping ht link/cpu nb multipliers down to 9x(would be running 2025mhz), ram multiplier to 5.33(or 1066 @ 200bclk), and up bclk/fsb to 225. That will get you dram speed of ~1200, just tighten timings because amd chips like latency try for cl6.

 

[El_Mayo]

Try dropping ht link/cpu nb multipliers down to 9x(would be running 2025mhz), ram multiplier to 5.33(or 1066 @ 200bclk), and up bclk/fsb to 225. That will get you dram speed of ~1200, just tighten timings because amd chips like latency try for cl6.

I wasn't aware memory speed had to be reduced, I thought they both increased proportionally. I'll try those settings ^
But I've gotten up to 230FSB, 8 hours stable in prime before, and crashed in 10 seconds playing BF3
hopefully your settings are stable

Are these memory timings fine for your suggested settings?

 

[JrRacinFan]

Are these memory timings fine for your suggested settings?

Rather loose but good enough to test settings. If you crash then it's cpu core & voltage related. What memory you got?

 

[Wrigleyvillain]

Those low profile low voltage Samsugs that can do up to like 2400Mhz depending on platform/IMC.

 

[JrRacinFan]

Those low profile low voltage Samsugs that can do up to like 2400Mhz depending on platform/IMC.

Keep em where they are at timing wise with settings above that I mentioned and just continue to up bclk/fsb adjusting volts along the way.

 

[Aquinus]

But I've gotten up to 230FSB, 8 hours stable in prime before, and crashed in 10 seconds playing BF3

That sounds like HyperTransport is running too fast and is glitching out when the GPU is running under load, not memory stability. How high are you running the NB and HT?

 

[El_Mayo]

That sounds like HyperTransport is running too fast and is glitching out when the GPU is running under load, not memory stability. How high are you running the NB and HT?

Pretty sure I was running it at 2300 back then
I just came off 4 hours of GTA IV at my current settings

 

[JrRacinFan]

Pull HT Link down one 2 multis and go further, same settings everything else. MIGHT need to up vcore & try to keep cpu nb @ your current setting.

EDIT:

Could push dram volts up to 1.6v just to help stability there if needed.