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Big problem- core 1 of Opteron 170 only getting 1.18V, mobo/bios probl

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Hi everyone, here are my specs first off:

 

Lian Li 7077

NF4 Ultra-D

Opteron 170 (Gonna OC)

Mushkin XP Redline PC 4000 3-2-3-8, (2X 1 gig sticks)

PC power and cooling Turbo-Cool 510 ASL

x1900xtx

Bios version 6.00PG

Bios Date 6/23/2005

Ok here is what I noticed. I first was trying to OC my Opteron 170, and noticed that core 1 always failed at even a little bit above stock speed... weird but no biggie, just a dud right? I think not... I have been relying on my BIOS and AMD power monitor to show me voltages, AMD's power monitor always shows me as getting 1.35 V on both cores even though my BIOS setting is at 1.475... Now my bios shows me at 1.46... It was recently that I installed SiSoftware Sandra. I was looking through it and I noticed that core 0 voltage was 1.46..... So the BIOS was right, and AMD's wrong. But what my BIOS didn't tell me was that was only for Core 0... Core 1 is only getting 1.18V.... Which must explain my poor OC results for only that core and random system crashes even at stock speeds. I have installed the SP2 hotfix patch for dual cores and the AMD patch for dual core support. I know my BIOS and system supports dual core because it registers, but what on earth is going on? And most importantly how can I fix it? Is this a problem with my power supply? My motherboard or my CPU? I really am wondering if this is the mobo or the bios or what? Again thank you for all the help you guys give me, much appreciated!

 

Frank

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Dont get excited. The 1.18V isn't for either core, it's the LDT volts. As far as know, ther isn't any way to have each core get a different voltage. The voltage supplied to one core is the same voltage for the other. As far as software, there will almos always be discrepencies. Heck, most of the time you'll get a different reading from a multimeter, the BIOS, and any software you choose to use.

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Dont get excited. The 1.18V isn't for either core, it's the LDT volts. As far as know, ther isn't any way to have each core get a different voltage. The voltage supplied to one core is the same voltage for the other. As far as software, there will almos always be discrepencies. Heck, most of the time you'll get a different reading from a multimeter, the BIOS, and any software you choose to use.

 

You are right... I increased LTD V to 1.3 and behold "CPU core 1" volts went up to 1.28 My question is, will Increasing LTD V perhaps help me OC- is there a limit to how far I should Volt it?

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So far, what I have found is a resounding NO. I have tried to Oc the LDT, and the voltage didn't help. My LDT craps out at about 2300. No matter what voltage I throw at it, it will not go 1 mhz faster. But, I also noticed that the LDT speed doesn't make much of a difference in overall speed, whether it's OC'ed or only running at 1800. So I personally leave mine at default volts, and as close to default speed as my FSB and multi's settings will allow. But, I'm an AMD noob, so my advice on that might not be sound.

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So far, what I have found is a resounding NO. I have tried to Oc the LDT, and the voltage didn't help. My LDT craps out at about 2300. No matter what voltage I throw at it, it will not go 1 mhz faster. But, I also noticed that the LDT speed doesn't make much of a difference in overall speed, whether it's OC'ed or only running at 1800. So I personally leave mine at default volts, and as close to default speed as my FSB and multi's settings will allow. But, I'm an AMD noob, so my advice on that might not be sound.

 

Your lucky, my Opteron 170 core 1 craps out at a 100mhz increase.... Voltage, latency, etc doesn't do crap- I give it the worst core of the year award Oh but my FSB can do 320 stable, which is absolutely GREAT :drool:

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Might be lucky now, but the first AMD rig I built was the most unlucky piece of doo-doo that I have ever had the opportunity to play with. :shake: The CPU clocked nice enough, but the mobo took a flying leap, and dragged my CPU with it. I was gonna build another Intel rig, and live with the insults, but I gave AMD another chance, and couldn't be happier.

 

But, really, I can't see a discernable difference between a high LDT or with a slightly underclocked LDT. Take for instance, on Aquamark 3, 2300 LDT (230 FSB, 11x CPU, 5x ldt) I got a 93,500 score. Same settings, but with LDT at 4x (1800-ish), I got a 93,400 and some change. Didn't save that screenie, but it was within 75 points... or close enough to say "no difference".

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Guest GripS

I also have a second core reading of 1.18. However my LTD voltage coincidentally matches that value. I have found BIOS, Everst, Sandra and Smartguardian all give slightly different results regarding voltages and temperatures.

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Im just pissed off I spent all this money on great OCing RAM and a nice HSF, and my damn CPU won't clock over stock speeds.......... sdfhgdjaskhakjlgdshkl

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Im just pissed off I spent all this money on great OCing RAM and a nice HSF, and my damn CPU won't clock over stock speeds.......... sdfhgdjaskhakjlgdshkl

 

"sdfhgdjaskhakjlgdshkl" :sweat:

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Guest LookBackX2
Im just pissed off I spent all this money on great OCing RAM and a nice HSF, and my damn CPU won't clock over stock speeds.......... sdfhgdjaskhakjlgdshkl

 

I'll trade ya that 170 for a X2 4400+ I have that will OC to 2860. Stock is 2200. 11 Multi.

 

I am dead serious here, no joke. Maybe you could have a little fun OC'ing that one. Also, if you ever got into some type of sub-ambient cooling setup, the 4400 I have is not cold bugged.

 

Let me know if you are interested.

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