View Full Version : [939] What kind of voltages for 3.3GHz
Gothic
08-18-2007, 07:41 PM
http://img103.imageshack.us/img103/2809/dfilptutnf4ultradopterobj8.jpg (http://imageshack.us)
Shot at 2007-08-18
I almost finishing a run of superpi 1M at those speeds, but if I up 1MHz HTT it'll reboot at the same moment.... any ideas for taking a screenshot at 3.3GHz?
Thx!
PhilDoc
08-18-2007, 07:52 PM
Could try a little more Vcore. Also you could try dropping your HTT and using a divider on the ram. I usually start that way to isolate the cpu OC as much as possible.
knopflerbruce
08-19-2007, 08:49 AM
he's probably using a divider already:)
PhilDoc
08-19-2007, 08:53 AM
he's probably using a divider already:)
He probably is, but I just wanted to be complete.
Gothic
08-19-2007, 10:25 AM
Duh.. forgot do add the A64Info window... anyway, runing RAM on 150 divider...
This is capable of 300MHz...
Currently runing @ 1.55v...
But I'm a bit scared of going further... Oh! forgot to add I'm using a watercooler... but you might have already found that by the idle temp...
THx!
PhilDoc
08-19-2007, 10:48 AM
Should be able to safely bump the vcore some. Just on air I ran mine up to 1.7v without problems. With water shouldn't hurt the cpu
Jimmer411
08-19-2007, 12:34 PM
Its 939, chances are your at your limit :( 3ghz was the high end, 3.3 was for the very few who were lucky enough to have golden chips or phase.
Have you removed the heatspreader? That gave me roughly 150mhz higher on my overclock (2.75 -> 2.9) on my 4400+ Toledo. 1.6v should be no problem on water as well.
NickS
08-19-2007, 12:57 PM
1.65v Vcore and crank the HTT. 1.65 is fine if you have good cooling.
Just an FYI, I ran 1.6+ on all my 90nm A64's. Air & water. None "spontaneously combusted," or died.
FlawleZ
08-19-2007, 01:27 PM
You're at 27C and you're worried about increasing the Vcore more? Please...I've ran up to 1.69 on my 4000+ on just a Zalaman 9700 and AS5. Temps weren't astronomical.
Gothic
08-20-2007, 08:03 AM
Tonight I'll drop some ice on my reseroir, crank the volts up to 1.7v and see if I gain sometinhg...
Should I expect 3.3GHz? Haven't seen many CCBBE 0610 DPMW aboce 3.2GHz...
Tried to search through the depths of hwbot.org database, but I can't find any "CPU-Z scores" for Opty 165....
THx!
knopflerbruce
08-20-2007, 02:21 PM
The 0610DPMW's I've tested (2, different batches as well) were both crap. 3g @ ~1.6v /water. maybe i just had some abd luck, but to me that stepping is not as good as it's supposed to be;)
Search ripping for scores, you'll find a few there.
The best stepping is CCBBE 0617(F?)PMW, that's what I think at least. I bought Untouchable's chip a week ago, should be here any day now. That's 0617FPMW. Don't remember what his highest OC was, 3470 MHz or something.
MAYBE 3300 is possible, but go for 3250 first.
Gothic
08-20-2007, 02:53 PM
The 0610DPMW's I've tested (2, different batches as well) were both crap. 3g @ ~1.6v /water. maybe i just had some abd luck, but to me that stepping is not as good as it's supposed to be;)
Search ripping for scores, you'll find a few there.
The best stepping is CCBBE 0617(F?)PMW, that's what I think at least. I bought Untouchable's chip a week ago, should be here any day now. That's 0617FPMW. Don't remember what his highest OC was, 3470 MHz or something.
MAYBE 3300 is possible, but go for 3250 first.
That's strange... I found it to be stable at 3GHz on air (TTBTVX) with 1.45v... what were your temps like?
Shalamay
08-20-2007, 03:49 PM
I have a x2 3800+ @ 3.1 at 1.55v on phase.
knopflerbruce
08-20-2007, 05:40 PM
That's strange... I found it to be stable at 3GHz on air (TTBTVX) with 1.45v... what were your temps like?
Not very high, at least not more than 50C.
But oh well, each chip is different. I've got 3 s939 DC WR's, can't win every time lol:)
Gothic
08-21-2007, 08:04 AM
Yesterday my HDD went kaboom so I didn't have the time for some serious OC... came up with the same 3.205MHz... but tonight it is colder and I have a fresh OS install... still expecting at least 3.3GHz!
I'll post results tonight!
PhilDoc
08-21-2007, 09:33 AM
Sorry to hear about your HDD. Looking forward to see what your cpu does. You'll get 3.3g out of her :up:
Gothic
08-21-2007, 12:17 PM
In about 2 or 3 hours we'll see! Your 3.4GHz shot inspired me!
Let's see what comes out of this lil 165!
939 still rulez....
hmm, perhaps trying stronger cooling than water if you must have 3.3ghz and dropping the divider even more?
PhilDoc
08-21-2007, 01:27 PM
In about 2 or 3 hours we'll see! Your 3.4GHz shot inspired me!
Let's see what comes out of this lil 165!
939 still rulez....
Thanks, I'll be rooting for you :up:
Cheffy
08-23-2007, 06:00 AM
good luck mate!
best i can get out of my 939 is about 3220ish (screenshot stable only) i can run bench's at upto about 3175
Volts here upto and including 1.7v + a bit of overvolt - seems fine.
SoulsCollective
08-23-2007, 07:13 AM
Not sure if it'll help, but 3.2GHz (http://valid.x86-secret.com/show_oc.php?id=227322) for me needed 1.5V and watercooling on a naked Opty, and was multi-threaded Prime95 stable. I've dropped down to 3.05GHz on 1.45V 'cause my RAM needed to be put on a vicious divider with 320HTT and was bottlenecking.
biohead
08-23-2007, 07:28 AM
In about 2 or 3 hours we'll see! Your 3.4GHz shot inspired me!
Let's see what comes out of this lil 165!
939 still rulez....
absolutely.
http://members.lycos.nl/simz4ever2/3400mhz_7dayWcg.jpg
;)
SoulsCollective
08-23-2007, 07:30 AM
Damn you people with access to sub-zero temps :rolleyes:
Gothic
08-23-2007, 09:07 AM
Well.. that's what I got with about 1.65v and some ice on my reservoir....
Do I really need to get her naked for 3.3GHz?
http://img160.imageshack.us/img160/273/dfilptutnf4ultradopterofj5.jpg
I was wondering if it is not the motherboard that is holding me... 200@363MHz is a something....
Also took my old Opty 148 to play some, and realized she don't like too much volts... like 1.55~1.60v is her sweetspot....
http://img114.imageshack.us/img114/8550/dfilptutnf4ultradopterorj9.jpg
PhilDoc
08-23-2007, 04:55 PM
Getting better. These chips do tend to have a sweet spot for voltages. I'd go up on the volts a little at a time. Usually once the get beyond their sweet spot the OC tends to get worse, so you'll know when it happens. The sweet spot also tends to increase with lowering temps.
I'm sure taking off the IHS will get you over 3.3G. Ben thinking about it myself, not sure I want to put that big honkin Ultra-120 on a naked cpu. Got some new clips and some AS5. No more ceramic, lol. I'm just going to relap the heatsink and see what happens with the board.
I did finally get the raid to work. I hate it when you spend hours frustrated for somthing simple.
Good luck and keep it going.
Gothic
08-24-2007, 09:42 AM
RAID setups can take some time to work in the way they should.... lol
I was thinking here that maybe loosesing some timings like TRC and MAL should provide some headroom for the memcontroller, thus the cpu itself...
What you think?
PhilDoc
08-24-2007, 06:16 PM
I think anything is worth a try. Another thing I was thinking about was the possibility of icing down the radiator of your water setup. Use to do that with the phase change to get a few extra degrees of cooling.
You could also get some big Deltas, they're loud but you only want it long enough to get 3.3G. I think they run about $23 a piece for the 190cfm version. Put those on your radiator
Gothic
08-28-2007, 07:31 AM
Well, got piece of cooper pipe... I'll see if I can drop some Dry Ice on her... removing the IHS scares me a bit...
BTW I'm 230MHz from the WR... maybe the hunger for my 1st WR will make me pop that spreader off!
PhilDoc
08-28-2007, 07:58 AM
Well, got piece of cooper pipe... I'll see if I can drop some Dry Ice on her... removing the IHS scares me a bit...
BTW I'm 230MHz from the WR... maybe the hunger for my 1st WR will make me pop that spreader off!
Wow, sounds sweet, taking off the IHS is not as bad as it looks, just take your time and get a sharp single edge razor blade. You'll also need something to hold the cpu in so you wont bend the pins.
I'll be rooting for ya :up:
btw guys normally the HT link can easily go to about 1500ish mhz :> I have had mine at 1450 mhz for a small year now
biohead
08-28-2007, 01:05 PM
btw guys normally the HT link can easily go to about 1500ish mhz :> I have had mine at 1450 mhz for a small year now
yeah but it does nothing to performance. a higher HT frequency can even possibly lower performance because of errors in the bus. toot toot.
kitfit1
08-30-2007, 02:10 PM
I think the question was vcore for 3.3gig. So here you go Gothic, vcore was 1.525x113%=1.723v :D
http://ocidb.com/albums/userpics/10007/normal_PI-1m.JPG (http://ocidb.com/albums/userpics/10007/PI-1m.JPG)
As you can see as well, 1200 on the HTT Link. Mind you, it was at -30c at the time :D
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