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The Socket 939 Appreciation Club and Knowledgebase [Official] - Page 863

post #8621 of 28692
Quote:
Originally Posted by N2Gaming View Post
as a matter aof fact I was. I think I got it up to 220 or 225 for 2500Mhz
N2Gaming, this may indicate that your current processor (opteron 180) may not be capable of those speeds or perhaps we're missing some specific settings in your BIOS that may need adjustment.

Quote:
Originally Posted by RAMDAC View Post
RAMDAC, well done

That is quite impressive!

Good luck guys
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post #8622 of 28692
Quote:
Originally Posted by blitz6804 View Post
What testing have you done to determine that this is the best speed? What numbers have you tested out?
Well, I'ved tried:

8x Multi
FSB: 235, 240, 245, 250, most of those faid.
RAM: 166, 133, 100 - even 100 failed to post.

9x Multi
Same thing

10x Multi
Wouldn't post past 215

My link is at 800 MHz

So far, I get 140ish in the Source test and it seems that stock speeds and 2.2GHz are acting the same way? Anyways, what would be a good core speed with what good ram speed? I did not fool around with any timinings.....
post #8623 of 28692
Quote:
Originally Posted by blitz6804 View Post


Electron migration. Essentially, the voltage, or potential difference across the CPU, ran at such a high level for such a long time, the electrons of the silicon are rearranging to cause minor short circuits. This causes the CPU to become unstable. Reducing it to stock voltage and speeds can slow the advance of this, but it is often fatal. Keeping the CPU cool at all times will help prevent this, as would lowering voltage. This is why you see the "rule" of 1.50-1.55 V on air, 1.55-1.60 V on water, and anything higher should be on TEC or phase change.

I was running 1.65Vcore on air...and my temps were fine untill I went to my aunt's house and had 'normal' ambients to work with...that's when the instabilities started to occur.


One can liken running an extremely high Vcore, especially in these older procs that have already been running for a few years, to asking a 65-year-old man to run a 5-mile marathon, every day, untill he can't even get up anymore...I aborted my OC before I completely killed my chip, as I don't want to have to blow my 50 bucks on a new 3800+ and be stuck with this X800 any longer than I have to
Edited by TestECull - 11/2/08 at 1:09am
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post #8624 of 28692
Yeah, I would never run that high for 24/7, meat locker or not. I keep my CPUs as close to stock as possible for 24/7. However, I have been know to try suiciding at 1.800 V...

Stupid thing STILL wouldn't join the one gigahert overclock club.

I do not suppose you were lucky in that the problem went away when you returned to your domicle?

Domino: Not adjusting the timings may very well be holding you back. A lot of times the SPD is the best choice only for a stock processor; overclock it and the HTT, and you will face some issues.
     
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post #8625 of 28692
Domino,

The increase of the Vcore is just one part, the perfect ratio between Vcore, Vdimm, NB- and SB voltage is another one.

A too high Vcore would sometimes behave as a too low one.
- Experimenting is the key here and I would start that with just 2 DIMM slots populated (let's say the 2x 512MB).

It's PC3200 RAM, so adjust them to 200MHz (1:1) and give them some extra voltage (2.85 - 2.95v) and change the timings to CL3.0-3-3-8
Set the Multi to x10.0 and the FSB up to 250MHz
The LDT/FSB ratio (HTT Link) to x4.0
Increase/decrease the Vcore to max. 1.5v
NB Voltage to 1.47 - 1.60v
SB Voltage to 1.85 - 1.90v

and if available:
NB Analog Voltage to 1.47 - 1.60v
LDT Voltage to 1.34 - 1.47v

If you can POST therewith but not get into Windows, we'll look further with timings, Odd Divisor, DRAM Drive/Data Drive Strength and so on.

If you can't POST we'll look further with the voltages.
    
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post #8626 of 28692
Quote:
Originally Posted by RAMDAC View Post
Domino,

The increase of the Vcore is just one part, the perfect ratio between Vcore, Vdimm, NB- and SB voltage is another one.

A too high Vcore would sometimes behave as a too low one.
- Experimenting is the key here and I would start that with just 2 DIMM slots populated (let's say the 2x 512MB).

It's PC3200 RAM, so adjust them to 200MHz (1:1) and give them some extra voltage (2.85 - 2.95v) and change the timings to CL3.0-3-3-8
Set the Multi to x10.0 and the FSB up to 250MHz
The LDT/FSB ratio (HTT Link) to x4.0
Increase/decrease the Vcore to max. 1.5v
NB Voltage to 1.47 - 1.60v
SB Voltage to 1.85 - 1.90v

and if available:
NB Analog Voltage to 1.47 - 1.60v
LDT Voltage to 1.34 - 1.47v

If you can POST therewith but not get into Windows, we'll look further with timings, Odd Divisor, DRAM Drive/Data Drive Strength and so on.

If you can't POST we'll look further with the voltages.
I don't have any form of cooling on my RAM and my CPU only has stock cooling. I can't really go out and spend a lot of money so I am kinda limited. The CPU cooler seems to work just fine actually, I haven't seen it go over 52.C in the OCCT stress test for some reason (probably just because it is winter - summer was only 61.C). Would my system run safe with a higher voltage? I know with the CPU it would eventually just stop and the PC freezes, but with the vcores going a lot higher on the ram and whatnot, would I say goodbye to these things?

I'll give it a shot, I'll up the voltages by one point on the things suggestion. Thanks

I'm confused with my boared. It is a mATX and it seems to only have a NB and not a SB. There is a chip in the bottom right next to my videocard but thats it. Usually on ATX boards I see 2 chips with heatsinks on them, I only see the one?
Edited by Domino - 11/2/08 at 9:25am
post #8627 of 28692
Alright,

FSB is at 230 (235 and 240 wouldn't post)
HTT Link is at 800
Ram was dropped to 166, didn't try 200
Ram voltage was upted from 2.66 to 2.75
NB Voltage couldn't find a setting.
SB didn't exist?

I'm going to run OCCT and see if the Valve Stress Test went up any. Thanks for the help. Any way I can monitor this thing for the RAM, etc, to make sure the PC is running fine? And if I leave it on for a long period of time, I shouldn't really have to worry about it? It would auto shut itself down right?

[EDIT] Well that failed pretty fast.
The timmings are in that order all the time right? In the BIOs it says something like 3-8-3-5 or something in that order.

I'm right not at 2.75 Volts again, FSB 220, HTT 800, 10x multi, and seeing if this works. Ram is at 1:1 (200) also.
Edited by Domino - 11/2/08 at 9:41am
post #8628 of 28692
Just my opinion but you might want to think about losing the 256s and add 2 more 512s or a nice 2-1gb kit when u have the funds .. good luck
    
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post #8629 of 28692
Quote:
Originally Posted by Domino View Post
I'm confused with my boared. It is a mATX and it seems to only have a NB and not a SB. There is a chip in the bottom right next to my videocard but thats it. Usually on ATX boards I see 2 chips with heatsinks on them, I only see the one?
Oops, my fault!

We're talking about an nF4 board and there aren't any north-/southbridges.
    
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post #8630 of 28692
Quote:
Originally Posted by RAMDAC View Post
Oops, my fault!

We're talking about an nF4 board and there aren't any north-/southbridges.
Ouch, so my hopes of going higher than 2.2GHz 440MHz ram are gone?
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