3120 MHz at 1.325 V? That chip's gotta be from wafer downtown :DQuote:
Originally Posted by squito
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3120 MHz at 1.325 V? That chip's gotta be from wafer downtown :DQuote:
Originally Posted by squito
We had to bump it to 1.375 for absolute stability (prime and gaming) - will update sig when the dust settles :)Quote:
Originally Posted by Pisu87
Opteron isn't Dead !!! :eek:
http://www.ixtremtek.com/ixtek/Hardw...9/PICT1896.JPG
http://www.ixtremtek.com/ixtek/Hardw...9/PICT1890.JPG
LCB9E 0742 :eek: is very very recently , the last Opty ???
http://www.ixtremtek.com/ixtek/Hardw...9/PICT1892.JPG
I don't test , not for me :shrug:
When will you send them to me then?, its good weather outside...cold.... :yepp:Quote:
Originally Posted by boblemagnifique
Exchange the €€€ , why not :DQuote:
Originally Posted by Lastviking
i'm having a strange issue with my opty 170 (@2.8GHz).... the voltage in the bios is set to 1.350V + 3.3% overVID which should result in 1.394V. however, when under load CPU-Z reads 1.344V to 1.376V.
why does cpu-z read lower values, and why the voltage variations?
Those questions would require more data to even guess at an answer.Quote:
Originally Posted by vladomkd
What PSU and motherboard are you running and how old are they???
As for minior fluctuations in vCore, that's typical unless you run full load 99% of the time, like SETI or F@H. I can count on my vCore dropping from idle 0.015v per loaded core. Since I run SETI 24/7 my vCore is typically 0.03v below the BIOS setting ...
Been seeing how low this 185 will go...
Voltage? We don't need no stinkin' voltage :D
http://img260.imageshack.us/my.php?i...voltagemn3.jpg
24hr Prime95 stable :up:
http://img293.imageshack.us/my.php?i...voltagefv6.jpg
as mentioned - core drop really depends on your motherboard and psu, if the psu droops you can expect some core droop, unless the board compensates.
notable boards (from the past) that didnt droop - and indeed overvolted under load were the I-Will KK266 and 266+, the original K266 howver used to suffer terrible +5v sag and the +r had a habit of lunching psu's due to the ferrocius +5 load - my own +r runs about 1.86v when loaded and set to 1.75v. and since you can set something like 2.5v in the bios...
cpu in my laptop, and old .13 clawhammer runs 2000mhz @ 1.175v needs 1.45 to get the next 200mhz to 2200 stock speed... runs .8v high also, but i have not checked the limit. maybe ill see how far i can go on 1.1v with m x2 when i get home
sorry, i thought i had the rig in my signature. anyway here it is:
-CPU Opteron 170 @2.8GHz using C'n'Q
-Apacer AM1 DDR400 2x1GB
-MB MSI K8N Neo4-F PCB 1.0 BIOS 1.D
-PSU ColorsIt Atrix 500T 600W (14+15A - 12V) 2 months old
-EAX1950Pro crossfire edition
the vcore drop i reffered to, happens when under 100% load (orthos, prime95). however when i disable C'n'Q, and set the VID to 1.4V, the voltage rarely goes above 1.34V, when under 100% load.
If CnQ is disabled and you're running Orthos Small FFT's does the vCore vary more than ±0.01 (total range of 0.02v) ...?
for testing purposes i have set the CPU voltage to 1.4V+3.3% overvid, total of 1.446V, and raised the frequency to 2850MHz.
when C'n'Q is disabled and the CPU is idling, the voltage varies from 1.392 to 1.440V (why????), but when i load orthos small FFTs it stays in the range of 1.376-1.424V.
why so big voltage variation? i have had A64 3000+ on the same board, with older bios version and there was no such variation... could it be the bios,or perhaps a dual core CPU is too much for this board?
i have also noticed that the highest voltage value in the bios is 1.4V, whereas with the older bios version it was in the range of 1.5-ish.
help?!?!
p.s. how far can i go with the CPU voltage?
If the voltage is jumping around that much at idle or load I'd say there's a problem somewhere. If you still have the 3000 you might try putting it back in for a test to see if the vCore is still steady with that chip. Overloading the board is a possibility if it's an older board, but I'm not very familiar with MSI.
I've run as high as 1.55 vCore with water cooling (CPU load ~42°C) but I wouldn't recommend more than 1.45 vCore for extended periods. There are some who run it 1.55v all the time and don't seem to have issues other than the extra heat ...
could it be that the voltage variation is due to a bad PSU? i would have thought so, but when the voltages are varrying when idling, i would think its mobo related?!?!
yes
voltage variation maybe caused by weak psu, and mainly don't trust software for voltage reading
the important issue, is ur cpu stable enough for you ? if yes, then forget about anything else
yes it's stable, i have no problems whatsoever.
Just bought a 170 CCBBE 0615, cost me a bit, but i think i would reach 3.0Ghz on Air.
My X2 3800+ didn't past over 2.6 :(
2.4 is all my X2 3800+ would do - it's not missed one bit :shakes:Quote:
Originally Posted by skandal
is 65C acceptable temperature for oc'ed opteron 170?
coretemp says 59C is tcasemax for my cpu, so i'm wondering whether i can run it safely if it reaches 65C (cores will probably be +70C)?
If CoreTemp is reading much over 60°C I'd be VERY cautious ...
well the cores are usually 5-7C hotter then the CPU casing. if i'm not mistaken tcasemax is the value for the CPU casing, so that should mean i can go to 59C absolutelly no problems (which puts the cores in the 65-67C range). i'm not stresing my cpu much, an ocasional game or dvd->divx compression, so those temps would only last for 2-3 hours a day.
are there any signs that will indicate my cpu is overheating?
it should be ok.
signs of overheating are limited to instability and sudden power offs.
sadly, (unless you are overclocked to the chips limit at a certain voltage) a chip with a good core will tend towards overheating and suffering damage (first shown by a reduced max oc) prior to becomming unstable - but we are talking about temps well into the 80's or 90's for extended periods
i discoloured the ihs on my X2 (discovered when lapping it in an effort to drop temps) and the cpu is fine.
great! i'm gonna try to reach 3GHz, and see whether it's capable of such frequencies, and see how the temps are going to be.
i'm gonna post back with the results...
2.75@1.375v, tryed the 3.0Ghz, but it seems that will require 1.5+v i think i will keep it at 2.85Ghz 1:1 with ram :)
I noticed one thing, the PSU can't handle the CPU@3.0 need a new one :) probably a odin =D
hey folks, just informing you that i've got this chip now (opty 185 lcb9e 0742cpmw). there's one other person who's got the same chip, according to google search.Quote:
Originally Posted by boblemagnifique
For me, it's a normal 3ghz chip at 1.44v or something. This is on air, TTBT. The other guy is only able to reach a mere 2850-something, he's using an TR XP120 which isn't a great cooler in comparison. His chip is easily hitting 50+ °C, hence his bad overclock. My TTBT is better so it doesn't hit high temps that early. But apparantly still too early: 3ghz 1.44v gives me 55°C core 45°C cpu temp. More voltage doesn't help, because it gets too hot and max overclock would rather decrease than increase.
The chip is a hotty, and obviously its heat needs to be tamed more thoroughly than can be done with my aircooling, if any (room temp) aircooling setup, in order to unlock its overclock potential. CoreTemp is reporting a Tmaxcase value of 59°C, which is LOW. For me, this is an obvious clue that the chip just doesn't like high temperatures.
I think that compared to other chips, this cpu needs a bit more voltage to perform in the overclocking department. So.. when I can make some time, phase change it is :up: