Q9550 'Clocking

[shawnjo]

Hey Guys,

Just wanted some input before I move further.

I just got my Q9550 today. I'm not at home so I'm not testing it on my sig rig. Testing on my girlfriends P5K.

VID is 1.20v, Batch # is L835B078, Stepping is SLB8V -- EO.

Here is the screenshot.

Running 3.4GHz at using stock volts:




As you can see it's been running for about an hour. Should I leave it to see if it's truly stable or should I push higher to see if I can reach higher using stock volts?

Thanks!

Shawnj0

[shawnjo]

Well at any rate, i waited for 2 hours and I'm now testing 3.6 on stock volts.

Something interesting: I was reading on someone's q9550 thread on OCN. Guy got 3.8 on stock volts, but he had LLC disabled so it was undervolted by a lot. His vid was 1.25 and under load without LLC it was 1.16v -- talk about undervolting!!!

Makes me wonder if my chip could be undervolted like his as well.

That's just insane.

not sure why people always advise to disable LLC when it greatly helps vdroop when enabled.. hmm

[YukonTrooper]

Initially, you should use short-burst high-stress programs like Intel Burn Test. It will tell you very quickly if some voltage is off. If you can do 10-15 passes of Linpack, then start a long stress test. You'll save a lot of time searching for the right settings.

[shawnjo]

Initially, you should use short-burst high-stress programs like Intel Burn Test. It will tell you very quickly if some voltage is off. If you can do 10-15 passes of Linpack, then start a long stress test. You'll save a lot of time searching for the right settings.

Thanks,

I'm trying to get it as high as possible using stock volts, and then i want to mess with GTL refs and the like.

I dont want to needlessly crank vcore into it :P

It's been just over an hour now @ 3.6 using stock volts. I guess i'll aim for 3.8 on stock.

I know my e8400 did 3.6GHz using stock volts -- needed 1.36v for 4GHz though.

I'm using my girl's Tuniq atm. temps are hitting 53c on load (max), or 48-49 avg

[YukonTrooper]

3.8GHz on stock will be tough, unless you have a real nice chip.

Do you have any pictures of your girl? JK, man. Have fun.

[shawnjo]

3.8GHz on stock will be tough, unless you have a real nice chip.

Do you have any pictures of your girl? JK, man. Have fun.

lmao!

Yeah, I'll need the luck.

shawnj0

[shawnjo]

Alright here's another teaser before I go to bed:




Current settings in BIOS are:

FSB 450
RAM:FSB 1:1
Timings 4 4 4 12
dram static control: disabled
vcore 1.22v bios, (1.2v idle/1.19 load)
dram 2.2v
nb: 1.25v
LLC enabled (though it doesn't work on my GF's P5K)
Spread Spectrums: Disabled
everything else is on AUTO

I just have one question. With GTL refs, PLL, FSB term all on AUTO will this give a greater chance for instability, or should it do the trick?



shawnj0

[shawnjo]

Update: Stable at 8 hours so far... still going

[WaterFlex]

Good job, shawnjo

[shawnjo]

Good job, shawnjo

thanks mate!

Do you think I should keep going with prime95 or should I just try higher clocks?

[WaterFlex]

If you have P45 mb you could make 500x8 @ 1,232 Vcore.
That would be the best OC for 24/7 usage.

[Edward2]

I would say that 8 hrs is good enough for now. Try going higher. Your volts and temps look great.

[shawnjo]

I would say that 8 hrs is good enough for now. Try going higher. Your volts and temps look great.

here's a post I had at another forum

alright I think i have some bad news.

I put the FSB to 475x8.5 = 4.05GHz and from the stock vcore all the way to 1.35v in bios it wouldn't even get past the windows screen.

a couple times it tried to tell me the windows files were corrupt, and a couple times when I was so close to booting into windows it just rebooted itself.

And of course one time I got a BSOD.

Something makes me think it's the mobo's limit.

I doubt the scaling of the chip is that bad.

edit: I hope when I get home and use my p5q things will be differently.

I bet this wouldn't be happening on a ud3p

I guess that 3.8GHz @ 1.18v is as high as I can really go for now :P

[carepolice]

here's a post I had at another forum
I guess that 3.8GHz @ 1.18v is as high as I can really go for now :P

Great results you got right there

[spoof]

I need advice - i need high PLL voltage for getting mine C1 stable at 465FSB. I set it in BIOS to 1.6v, but motherboard overvolt it to 1.68 - what should i do now? So far haven't found what can bring stability without such high PLL...