View Full Version : AMD K/ 550 Slot A@700+ ( Second edt. )
hi,
firstly thanks to all who replied.
Latest !!
downloaded MATHLON / Installed / Configured etc,
settings:
700@1/2 = 350 OK ( although 350 is a little dodgy eh !! )
700@2/5 = 280 ( No Probs temp= <> 35c )
750@2/5 = 300 ( same as above )
800@2/5 = 320 ( System hangs after checking RAM )
850@2/5 = 340 ( as above )
however !
800@1/3 = 266 ( system still hangs after memory check 1,75v )
850@1/3 = 283 ( as above )
900@1/3 = 300 ( as above )
since 550@1/2= 275 or 1000 / 3,6 = 278
why is it that my sys cant do the 800MHz thing as the L2 cache setting is pretty close to the original value. Or is it that on boot-up before it can read the disk the setting is
800@1/2 = 400 ( no go )
but i presumed that the Mathlon software set the L2 cache rate at 1/3 untill i used Mathlon to re-set it to another value.
otherwise at boot up 750@1/2 = 375 untill the fd boots in and gives 750@2/5 = 300 , which to me should also make 750MHz hang the sys .
really confused and awaiting further instructsions ( you guys are great )
ol Barolos.
PS. CPU date 51/ 99 0.25
Dude the max L2 setting is 1/2 for a 700 athalon making the 350 setting,When you clock over 700 you must lower the setting to 1/3 So if you are at 750 the L2 needs to be set to 1/3 and any clock speed the processor is set to the L2 cache cannot exceed 350
that is why the 2/5 setting is there so when you get real high processor speeds the L2 can be adjusted
Barolo (Feb 05, 2001 05:49 p.m.):
hi,
firstly thanks to all who replied.
Latest !!
downloaded MATHLON / Installed / Configured etc,
settings:
700@1/2 = 350 OK ( although 350 is a little dodgy eh !! )
700@2/5 = 280 ( No Probs temp= <> 35c )
750@2/5 = 300 ( same as above )
800@2/5 = 320 ( System hangs after checking RAM )
850@2/5 = 340 ( as above )
however !
800@1/3 = 266 ( system still hangs after memory check 1,75v )
850@1/3 = 283 ( as above )
900@1/3 = 300 ( as above )
since 550@1/2= 275 or 1000 / 3,6 = 278
why is it that my sys cant do the 800MHz thing as the L2 cache setting is pretty close to the original value. Or is it that on boot-up before it can read the disk the setting is
800@1/2 = 400 ( no go )
but i presumed that the Mathlon software set the L2 cache rate at 1/3 untill i used Mathlon to re-set it to another value.
otherwise at boot up 750@1/2 = 375 untill the fd boots in and gives 750@2/5 = 300 , which to me should also make 750MHz hang the sys .
really confused and awaiting further instructsions ( you guys are great )
ol Barolos.
PS. CPU date 51/ 99 0.25
why is it that my sys cant do the 800MHz thing as the L2 cache setting is pretty close to the original value. Or is it that on boot-up before it can read the disk the setting is ....
Well, you've lowered the stress on your L2 cache, but not on your CORE. You had a 650 original, was it? You say it hangs after memmory check. This means instability of your core, as L2 isn't used actively yet (this is done by starting up windows, aka booting). You are running 1.75V, this is about the max on aircooling, MIND YOUR TEMPS!!! Some better cooling could do the trick if your somewhere near 50°C.
If you really want to know and are a real die-hard like me, go watercooled. I've tested my effect by putting open the window of my room, letting the room cool down to 14°C. Open case and run! I've tried for a moment on 1.85V, highest I've done on aircooling. System did 850, that's when I decided to go watercooled.
So what you can do is increase your Vcore to 1.8V if your temps allow it, and look if you can increase cooling effeciency. These chips die from the heat, not (directly) from Vcore! Do always keep that in mind!
Some more of my adventures: highest Vcore i've done was 1.95V, and the bitch wouldn't do 875Mhz DAMN I need peltiers! b.t.w. it scared the hell out of me and I've put the Vcore back soon, before CPU wares out.
HI,
Sorry but I fail to see how going water cooled will get me upto the 850MHz, since as as soon as I boot the sys. it hangs, and I cant see why it should go straight to over temp within a few seconds or more, if it would do the 850MHz then it would have to be propely cooled, agreed.
I rekon that my MB / RAM canīt cope with the extra stress since if you read the L2 Data, 800@1/3 is less than the original 550@1/2 , 266MHz as opposed to 275MHz.
Am considering an update to AMD 800MHz Slot A Thunderbird ( 300DM) and then to try and get some monies back by selling my 550 incl. GFD etc.
But at the mo I am still open to suggs, but the watercooling thing is to much hassle since I often play Networked so I need my Sys. to be mobile and not to be to heavy etc.
Paul.
could someone give me some detailed instruction on how to install mathlon. I've downloaded it to my desktop but I've never messed with the config sys before. Thanks....
ed (Feb 12, 2001 11:23 a.m.):
could someone give me some detailed instruction on how to install mathlon. I've downloaded it to my desktop but I've never messed with the config sys before. Thanks....
This must be version 2.0, which is not-so-userfriendly. I use version 3.0 beta with the setup disk. It is a LOT easier, and has no errors so far! Just run the executable and have an empty floppy ready. That's all folks!
p.s. I've added the program as attachement, can it be any more simpel?
ed (Feb 12, 2001 11:23 a.m.):
could someone give me some detailed instruction on how to install mathlon. I've downloaded it to my desktop but I've never messed with the config sys before. Thanks....
Hi,
I did it via the installation program from Mathlon in a Dos window, it means you have to leave the diskette in when the sys. boots, but i managed to get 750MHz @ 2/5 L2 with the software.
I didnīt use the Config sys etc, as I couldnīt find the Mathlon.sys from the diskette.
Paul.
Barolo (Feb 12, 2001 12:49 p.m.):
ed (Feb 12, 2001 11:23 a.m.):
could someone give me some detailed instruction on how to install mathlon. I've downloaded it to my desktop but I've never messed with the config sys before. Thanks....
Hi,
I did it via the installation program from Mathlon in a Dos window, it means you have to leave the diskette in when the sys. boots, but i managed to get 750MHz @ 2/5 L2 with the software.
I didnīt use the Config sys etc, as I couldnīt find the Mathlon.sys from the diskette.
Paul.
Congratulations on the athlon@750! I hope you've enjoyed it for a couple of days running stable for now. What voltage are you running, and do you have a way to measure temps? I use a car-thermometer (inside-ouside) and use outside probe between coldplate and Athlon PCB. Gave me a nice indication, aircooled @49°C 1.7V. If temps and voltage allow it you might reach 800stable.
To fall back on an other post before: why (water)cooling gets your results up. This is because of CMOS accuracy/stability decreases with increasing temps, or in normal language: cooler CPU's run more stable. This can be very tricky! In my case, standard aircooled speed was 750. At 1.8v I did 800, but as soon as temps reached 45-46°C, is became unstable! Running it opencase on a cold day (42°C) kept it running for hours straight! Watercooling can take away MUCH more heat than aircooling, which allows you to bump up voltage more, if you go for extreme volts.
I've read your results on top again. Tried 800@2/5cache with 1.8V yet? And running cache rated for (example) 280 at 300 doesn't need to make your sys hang, it can be overclocked too :D I run my 3.3ns (300MHz) cache at 400MHz (that would be 2.5ns). 1.8V perfectly stable.
Can you post some more info ???
I am willing to bet you have a small power supply !!
The athalons are power monsters if you cant post i would first confirm I have a 350 watt power supply and it is amd approved.
Second Do you have tweaks anywere else in your bios like for your ram ?? or front side bus ?? If you do, boot to bios and return it to its default settings,Then set up the processors voltage leaving your fsb to the stock 100mgz,If your gold finger device and i am asuming you have 1,has power switches make sure thay match the voltage you set in the bios,
And set the clcok to the last stable speed you had.
Test system,if all is well shutdown go to the gold finder and kick it up 50mgz with no voltage bump if no post bump voltage.Try this for different speeds
Good Luck
I can confirm that in the good old day's I had a 235W powersupply. It was unstable, not even overclocked. Have a geforce256, a DVD8x and a burner, 2HD's. Can you imagine a system consuming more power? Switched to 300W PSU, blow it within 2 weeks. Returned it, got another one for free and never had problems again. 300 Watts are nessecary, but the 350 AMD approved is better. Must have a nice bottom fan, also a pre.
p.s. Oh, please, stop calling it an athalon! It's an athlon for sure. When I first read it, I thought:" what would that at-ta-lon be?". Athlon sounds better.
Thanks guys, It was very easy to set up 3.0 I was able to go up another 50mhz to 750 with a 600. Tried 800 but it was no go with voltage at 1.85 Guess I could try 1.95 but I think its all she's got.
Athlon Athlon Athlon Athlon Athlon Athlon I have repeated the spelling so I can remember it LOL,
Rob it is cool to have an english major among us!!!
Personaly I hate typing and spelling but if I am going to do it I might as well do it right !!!
HI,
Sorry Lads I bummed out, got myself a Athlon 800 Slot A Thunderbird, since I really wanted the 800MHz, as my Network friends all have the 800 T/B but i didnīt want to have to buy a new board.
PSU is Amd 2,3 app. 300w .32x CD / V4 4500 AGP / 1x 20GB HDD
otherwise nothing else.
Have tried 800@1/3 at 1,85v, sys still hung at boot. I probably need a new MB to achieve anything over the 750 mark, and the mathlon disk was a pain, since my kids kept taking it out etc,
Thanks for help . Shall re-visit this page often in order to keep up with details etc. There is some really good advice floating around here !!!
Paul.
diehrd (Feb 12, 2001 02:22 p.m.):
Athlon Athlon Athlon Athlon Athlon Athlon I have repeated the spelling so I can remember it LOL,
Rob it is cool to have an english major among us!!!
Personaly I hate typing and spelling but if I am going to do it I might as well do it right !!!
Sorry, I wasn't pretending to be a english major, my english isn't very well too (I'm from the Netherlands or just Holland!), but it was just the word for our well known relic, that I see over and over again, many people use it. God bless the spell checker function :)
Greatings from Holland! Happy OC'ing
ed (Feb 12, 2001 02:22 p.m.):
Thanks guys, It was very easy to set up 3.0 I was able to go up another 50mhz to 750 with a 600. Tried 800 but it was no go with voltage at 1.85 Guess I could try 1.95 but I think its all she's got.
Hey Ed,
nice to hear you've made 50MHz extra! You said 800 wouldn't work, didn't the machine POST or didn't it BOOT. Not posting (i.e. failing at memory check / giving a black screen/ mobo error sound) will be the caused by instable CPU core, not cooled enough/voltage not high enough. If the machine doesn't boot, you could try setting mathlon even to 1/3 (or did you already?), most of the cases this means instable cache. Sometimes when I forget to insert floppy the machine boots with cache disables (set in bios), nice to see wether it's the cache not getting to the speed.
What I wanted to say is to be carefull with high voltages. The 0.25um athlon series (early 500-700MHz) bark out a LOT of heat!! And going above 1.8V gets tricky in my opinion. The 0.18um athlon's (later 500, all above 700) run much cooler and are cooled more easily. To know what kind of athlon you have look at the black cover, serial number ending at C = 0.25um, ending at A = 0.18um. Since I wan't to know some more on voltage too, I will post a new thread in AMD-cpu's. If you are aircooled, I would stay below 1.9V, even I don't know how my CPU would handle (a 0.25um one). Highest I've done was 2.0V for an instant, but I put it back very fast. Before I continue I need some more experience from others with extreme voltage.
Tbird's are all 0.18um, that's why someone is recomending to set voltage up to 2V, but for classic athlons, it is more like suicide (some CPU's wear out after a couple of day's high voltage, some die instantly). Try measuring temps of your CPU, with the method I described in some post before (car thermometer), so you know when you can go higher.
Let us know how your going! Succesfull OC
A wiseman once said: It's temperature killing CPU's, not voltage!. So keep temps down 50°C when OC'ed.
Barolo (Feb 13, 2001 04:21 a.m.):
HI,
Sorry Lads I bummed out, got myself a Athlon 800 Slot A Thunderbird, since I really wanted the 800MHz, as my Network friends all have the 800 T/B but i didnīt want to have to buy a new board.
PSU is Amd 2,3 app. 300w .32x CD / V4 4500 AGP / 1x 20GB HDD
otherwise nothing else.
Have tried 800@1/3 at 1,85v, sys still hung at boot. I probably need a new MB to achieve anything over the 750 mark, and the mathlon disk was a pain, since my kids kept taking it out etc,
Thanks for help . Shall re-visit this page often in order to keep up with details etc. There is some really good advice floating around here !!!
Paul.
Thanks again for unreal maps, I like em as I never searched for aditional maps before. You say you probably need a new Mobo for 800MHz oc'ed. Most of the boards (even the early ones) can handle 800 easily and go to a Gig or even more, overclocked or not. But the 800 new is a very good choise indeed. Goodluck, and when you've seen it on standard speed, think of giving OC'ing a try again, but I must just have said that because that's what I would do. I'm waiting for the Palomino thing, so no fun yet .. :(
Greatings, Rob
Hi,
at boot means the same as before, sys. boots up shows new clock speed 850MHz etc, does the mem check message SPD supported ( on the AK 72 from A-open ) then just hangs !!!. doesnt try to find a HDD, as is usualy the case, have tried new BIOS , as I said cant see the use of Water cooling if the sys dosent get as far as to check for the HDD.
As I said, have got a new 800 T/B and will wait till the Guarantee is out and have another go !!. Could maybe get upto the 1GHZ mark.
Thanks for the postings.
Try www.unrealplanet.com or .de for extra maps etc. will redo my Homepage as soon as I get some new software .
Paul.
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