I can tell you I just got a 170 and a Abit board similar to yours and went right to 2.7@ 1.375v Idles at28-30c, full load prime is 50-52 with stock hsf.
I have read a 165 will do just about the same for a little less money. The 170 is about 190us at newegg right now. The 170 has a 10x multiplier and the 165 a 9x I believe. I set htt to 270 ram div. to 4x (not5). Cake
I have read a 165 will do just about the same for a little less money. The 170 is about 190us at newegg right now. The 170 has a 10x multiplier and the 165 a 9x I believe. I set htt to 270 ram div. to 4x (not5). Cake
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My former rig was an Opty 170 OC'd to 3.0Ghz:
Model: OSA170DAA6CD
Stepping: CCBBE 0610DPMW
Serial: 1430261C60932
Core: Toledo
This stepping is the highest overclocker of the 939 Opty 170's, commonly reaching 2.8 to 3.0Ghz on high end air. 8)
Model: OSA170DAA6CD
Stepping: CCBBE 0610DPMW
Serial: 1430261C60932
Core: Toledo
This stepping is the highest overclocker of the 939 Opty 170's, commonly reaching 2.8 to 3.0Ghz on high end air. 8)
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The above stepping is for a 170. 165's don't typically OC as high as 170's, so they're well worth a few extra bucks. Some vendors provide stepping info, otherwise, it's a roll of the dice.
Good luck. 8)
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Yes, a clean Opty 165 will typically OC 50% from 1.8 to 2.7 Ghz, but 2.8 to 3.0 Ghz is unusual on high end air. On stock cooling 2.5 to 2.6Ghz.
Keep in mind that every silicon semiconductor device is unique, and has different basic properties of electronics such as resistance, capacitance, inductance, impedance, and transconductance. Although two consecutive serial number CPU's from the same fabrication, with the same stepping codes, may appear identical, they're yielded from different location on the silicon wafer from which they're manufactured, and like diamonds, each has it's own unique flaws.
Even though their dynamic operational characteristics may be very similar, no two CPU's will overclock to exactly the same stable maximum speed, at the same voltage, at the same temperature. Additionally, in a dual core processor, one core will always become unstable before the other.
Hopefully you'll receive a clean CPU that will be a good overclocker, but you won't be able to predict your OC until you actually try it out.
Hope this helps. 8)
Keep in mind that every silicon semiconductor device is unique, and has different basic properties of electronics such as resistance, capacitance, inductance, impedance, and transconductance. Although two consecutive serial number CPU's from the same fabrication, with the same stepping codes, may appear identical, they're yielded from different location on the silicon wafer from which they're manufactured, and like diamonds, each has it's own unique flaws.
Even though their dynamic operational characteristics may be very similar, no two CPU's will overclock to exactly the same stable maximum speed, at the same voltage, at the same temperature. Additionally, in a dual core processor, one core will always become unstable before the other.
Hopefully you'll receive a clean CPU that will be a good overclocker, but you won't be able to predict your OC until you actually try it out.
Hope this helps. 8)
Ye thanks for the detailed reply.....that definately helped me understand why two processors dont overclock the same but last ngiht i found this website where it had all the steppings for a certain overclock.....take a look under Dual Core Socket 939 Opterons 90NM.
http://www.overclock.net/amd-cpus/128767-most-overclockable-stepping-averages-single-core.html
That shud help me find the better overclocker....u agree?
http://www.overclock.net/amd-cpus/128767-most-overclockable-stepping-averages-single-core.html
That shud help me find the better overclocker....u agree?
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If you can find a vendor from which you can purchase specific steppings at a competitive price, then yes. Also remember that when you buy a CPU, you're also paying for the multiplier. This is partially why it's easier to OC the Opty 170, because you don't need to push the FSB as high as the 165.
3.0Ghz = 300Mhz FSB x 10 multiplier Opteron 170.
2.7Ghz = 300Mhz FSB x 9 multiplier Opteron 165.
Hope this help. 8)
k0rn_h0li0
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your only running one channel. i guess you gotta stick to the low ends then cause i never tried oc opteron and haha kind of scared too cause if i blow out this processor i have to work to get a new one. mines is 2 channels yours is one i guess.
What is an example of high end air cooling.
Oh and I'm thinking of getting an opty 165 w/ a DFI Lanparty 939 board, and a gig of good 'ol ocz ram.
How long do u think it'll be until those lanparty boards are out of stock on newegg because I've still got to raise funds.
Oh and I'm thinking of getting an opty 165 w/ a DFI Lanparty 939 board, and a gig of good 'ol ocz ram.
How long do u think it'll be until those lanparty boards are out of stock on newegg because I've still got to raise funds.
k0rn_h0li0
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you should use the zalman9700 or newer versions of it. they'll always be on stock so you should be able to take your time to get the motherboard
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The Opterons come with a decent stock heatpipe HSF. You can always upgrade later to the one in my sig, or others as good or better. Some users are very passionate about expressing their opinions concerning HSF's, so I won't comment. Google the CPU cooler reviews.
Too bad; the 170 is faster, and 1Gb RAM is minimal for the upcoming release of Vista, but if you must, then go with 1 module in single channel mode temporarily, then buy the second module when you can afford it.
The rulebook committee revolked my crystal ball license years ago, on the grounds of crystal ball abuse, and Newegg got the memo, so ever since then, they refuse to answer any of my questions about DFI MB's, or anyrhing else for that matter... :lol:
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The memory will simply operate in single channel mode rather than dual channel, but it won't effect your OC. 8)
I've got one more question. The mobo:
http://www.newegg.com/Product/Product.asp?Item=N82E16813136152
doesn't say it'll run opty's. SO will it work.
I don't want to flash the bios
http://www.newegg.com/Product/Product.asp?Item=N82E16813136152
doesn't say it'll run opty's. SO will it work.
I don't want to flash the bios
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Not true in this case.
As has already been stated above:
Model: OSA170DAA6CD
Stepping: CCBBE 0610DPMW
Serial: 1430261C60932
Core: Toledo
http://www.overclock.net/amd-cpus/128767-most-overclockable-stepping-averages-single-core.html
This stepping is the highest overclocker of the 939 Opty 170's, commonly reaching 2.8 to 3.0Ghz on high end air. 8)
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might
As far as my experiences, the newer the stepping, the better it was for me.
Considering the information already provided, and your experiences with Opterons, what are your recommendations for style69, k0rn_h0li0, and HotSauce?
slim142
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wtf, I never said I had opterons, I said that everytime I had bought new processors, the newest the steppings, the better it was for me because
1) I had the best cpu at that speed
2) I could sell them on ebay for higher prices
3) they had many errata fixed
4) overclocked better than others (minimal differences but still)
1) I had the best cpu at that speed
2) I could sell them on ebay for higher prices
3) they had many errata fixed
4) overclocked better than others (minimal differences but still)
Here is a list of stepings and overclocks
http://forums.extremeoverclocking.com/showthread.php?t=246130
The fact is that the 165 and 170 are the same things. Same steping=same overclock, but you need a better mobo and RAM for the lower multiplier.
My 165 will do 3ghz with the stock cooler (CCBBE 0615 DPMW on a DFI nF4 Ultra-D with OCZ PC-4000.) Since your Asus may not do 333 HTT the 170 is the better choice.
http://forums.extremeoverclocking.com/showthread.php?t=246130
The fact is that the 165 and 170 are the same things. Same steping=same overclock, but you need a better mobo and RAM for the lower multiplier.
My 165 will do 3ghz with the stock cooler (CCBBE 0615 DPMW on a DFI nF4 Ultra-D with OCZ PC-4000.) Since your Asus may not do 333 HTT the 170 is the better choice.
antikristuseke
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- Jun 15, 2006
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My own 165 does 9x312 on my asrock 939dual-sata2 whiich is a low end board, no vmods and only at 1.4v with the stock hs and fan and from what i hear on local overclocking forums most 165's arround where i live overclock better than 170's available here.
funnyman06
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Hey i went from a X2 3800 to an Opty 165 and as you can see mines at 3.0Ghz right now. i just got it there today i was running 2.7 for the past month. But what you need to look for is a mobo that can run the high "FSB" speed. Since im at almost 350 on my motherboard. i still need to bring my volts down since i cranked it up so it was not a limiting factor but i got mine from the egg and it was a really good buy as far as i was concerned... more than 1ghz OC, pretty impressive if you ask me.
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