View Full Version : first results from Duron... ideas?
must say, i find this odd...
while temps at highest were 51* lowest 42* <loaded>
currently, 115 7.0x 1.675v 49* 805mhz working good.
tried these...
6.5x 112 1.625 ok.. sandra results good
6.5x 132 no
6.5x 127 no
6.5x 126 no
Vcore to 1.72
6.0x 128 768mhz good
6.0x 132 posted at 700mhz
6.5x 132 no
Vcore 1.575
7.0 115 805mhz failed in win
1.6v nope
1.675v is now steady, still 49*
see any tendencies?
any suggestions toward combinations i've overlooked perhaps?
seems when i lower the multiplier, the fsb raises easier, but can't get a post at a 133fsb setting... 128 was highest i got. please post your thoughts here.
i'd appreciate any suggestions.
i know i need a better cooler, LOL
i think 51* being the highest, isn't really that bad to test with. maybe i'm wrong, but working with what i've got :)
basically, i'm no good with numbers, maybe my combo's are wrong?
or could be better attempts made?
thanks guys!
As I see it, the first problem you are having is that you will probably not get above about 124 fsb this way. At that speed you are running your pci bus at 41.3mhz and that is pretty much the upper limit for most cards.
To run at 133 fsb you need to change the jumper on your motherboard to the 133 position (check your manual). The 133 setting changes your pci divisor to 4 bringing pci frequency back to spec.
You may have to connect your L7 bridges to get the system to boot at this setting. Even if you have lowered your multiplier in the bios, the computer will momentarily try to post at the default multplier (7x133) and probably won't make it without some extra juice. Simply raising the voltage in the bios will not work since the system also initially reads the default voltage off the chips L7 bridges at post. Connecting the L7s will max out the startup Vcore. You can then reduce the voltage in the bios if you want to run at a lower setting.
Try the 133 setting without doing the L7s first. If it won't post, use the same "pencil trick" as you would for the L1s. DO NOT close your L7 bridges without adequate cooling or you may fry your chip. The temps you posted seem a little high so you might want to get a better hsf before you try this.
Hope this helps.
Good Luck
Man you gotta give the chip more juice
1.675v is not enough
I run my duron 700@945MHz at 1.85v
you should be giving Vcore at least 1.75v
also upping I/O voltage a notch won't hurt anything
Before you do any of this though, go out and buy an alspha or a globalwin fan or something...
good luck :)
If you still find instablility upping the voltage, I suggest you try re-doing your L1 bridges...
i'm figuring i'll be doing the L7's
cooling *is* the issue
the defogger kit is nicer than pencil, the stuff does'nt paint too well tho.
it's like white-out LOL
so 124 is the highest w/o changing jumper?
i have posted and seemed stable in Win w/128... only the mult was 6.0x
and the jumper 133fsb is a no-go. i'm pretty sure it's the vcore holding this back, but no way am i gonna up v's with this kinda heat i have currently.
i really prefer a 7 or 8 multiplier and a good fsb #, i care not what voltage i need to run it at, so long as i get it to 43*-45* tops
so far tho, this O/C to 805 is solid, after some UT and some benchmarks.
Wow, If you got it to run stable at 128fsb thats pretty good. I don't know what else you have in your system but getting your pci to run at 42.7mhz (128/3) is way up there.
The other thing you have to consider is that upping the fsb overclocks the memory by the same percentage. Therefore, if you have your memory set at 133 in the bios, running fsb at 128 (1.28 x 100) means your memory is clocked at 170 (1.28 x 133) - probably way too high unless you have really premium ram.
Sorry if you have already considered this stuff, just throwing ideas out there.
seadog (Jun 01, 2001 11:27 a.m.):
Wow, If you got it to run stable at 128fsb thats pretty good. I don't know what else you have in your system but getting your pci to run at 42.7mhz (128/3) is way up there.
The other thing you have to consider is that upping the fsb overclocks the memory by the same percentage. Therefore, if you have your memory set at 133 in the bios, running fsb at 128 (1.28 x 100) means your memory is clocked at 170 (1.28 x 133) - probably way too high unless you have really premium ram.
Sorry if you have already considered this stuff, just throwing ideas out there.
NAW! dude, i want ideas!! and better yet, you're giving me #'s...
i love that! :)
yep, 128fsb with the low multiplier was fine. as far as my components, the sig tells all, only one 30gig HDD right now tho. also a supramax modem.
i use the iWill onboard sound, its pretty good.
now, i have the mem set at cl3 for O/C testing, and the speed "w/proc"
i can set RAM at the cpu bus, or +33mhz or -33mhz, i think the neg33 will be needed to throw the jumper to 133.... ty for noting that!
the RAM is just ok, it runs CL2 at 115... i don't know where it'll top out tho.
what i would really like to know...
a comparison, or a few diff posts of results...
specifying the difference in temps before and after L7 connects.
from say, 1.65 to 1.85 what was your temp increase?
i'd really like to know this!
and thanks Seadog!
Sorry I can't give actual numbers on the temps. I don't have that system set up anymore. The best I can remember was that the Duron 800 maxed out around 47-48C under full load running at 1030mhz. That is after I changed my hsf from the stock unit to a FOP-32 and did the L7 mod.
As far as the ram goes, since you have pc133 sticks you'll probably want to keep the memory set to same as cpu after you jumper to 133fsb.
My suggestions for hsfs would be to look at Millenium Thermal Glaciator, any of the Swiftechs, Taisol CGK760092 (my current favorite), or the new ThermalRight sk6 - all awesome coolers. Lots of other good ones too.
n2 (Jun 01, 2001 11:50 a.m.):
what i would really like to know...
a comparison, or a few diff posts of results...
specifying the difference in temps before and after L7 connects.
from say, 1.65 to 1.85 what was your temp increase?
i'd really like to know this!
and thanks Seadog!
It depends on your cooling / thermal paste etc. You'll probably see about ~ +5 degrees celcius from 1.65 to 1.85.. but that just an estimate
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