AMD Help needed please

[robo74]

Just got a AMD K6II 500MHZ and I was wondering what they were OCable to? Also, anyone know a good operating temp for those chips? Any good cooling idea's? Water cooled? anyway to do it? Any suggestions would help. Thanks!!

[drjohnsn50]

Don't want to burts your bubble but the k6-2 aren't good overclockers. I have gotten my dads 500 to 550 but it was unstable. I only used air cooling. I am sorry but I just don't see why its worth it to overclock those things. The chip is $42 bucks plus shipping. You'll spend way more than that if you actively cool it.

[robo74]

I wasnt out for that chip to be a over clocker. Bought it because I needed something a bit faster and cheap and that will run my Q3 game down the T3 to the server that we have. and so far it is doing well, I was just curious to see what these chips had in them and right now my sys runs warm so I was just trying to get some tips on cooling :-)

[miha76]

BIG COOLER, LOTS of CHASIS FANS.


If you need performances for your K6-2 go for higer FSB clcok not the CPU core

example:

110x4,5=490 is 10-15% faster then your default 500 (5x100), and 115x4,5=517,5 would be the best and fastest setup for you, or 112x4,5=504 depends on your motherboard and available FSB clcoks.

IF you deside to rise FSB keep your chasis opend cous in that chase is not only CPU overclocked but evrything else.

[miha76]

Also use CPUIDLE is very helpfull for K6-x cpus, or eny other HLT software (software cooler).

[This message has been edited by miha76 (edited 04-26-2000).]

[AMDnut]

You should be able to get to 550 without much trouble. You will need to run a higher voltage than the standard 2.2v, and do some burn-in, but it should get 550. See this thread on K6/2 overclocks: http://discussions.hardwarecentral.c...ML/006403.html
Although TonForty is using a 533, most of the same things apply to your 500. I currently have a 500 running at 525 doing burn-in to get to 550. I hope to see 575 or 582mhz with this chip, but time will tell!

As for cooling, you should be able to get 550 or 575 with air-cooling only. Use a good quality heatsink, preferably an ALPHA. I'm running my 500@525 with a GlobalWin FKP32 heatsink that has been lapped. The case has one (1) Sunon 80mm fan in the front blowing cool air into the case. The power supply fan is exhausting air out of the case. Idle temps with voltage at 2.3v is a nice cool 26-27c and never gets above 33c! And this is without RAIN or other software cooling. The mobo is an AT style, so the front case fan blows directly on the side of the CPU/heatsink which helps quite a bit!
miha76 is right, a higher FSB will improve performance much more than higher clock speeds will.

Your chip will probably need a little burn-in before overclocking. I burn in by running Stability Test or Prime95 at a higher voltage for a couple of days before attempting to o/c. I used 2.4v on my 500, then set it to 525 and lowered the voltage to 2.3v, now it's stable as a rock! I'm doing the same now trying for 550. And when I say stable, I mean running Stability Test for 24+ hours with no errors, and playing Motocross Madness for a couple of hours with no crashes.
Hope this helps!





[This message has been edited by AMDnut (edited 04-26-2000).]

[Soneji]

The K6-2s must be getting worse O/Cing wise because I used to have my 400 @ 525, I could get it to boot to windows at 550 but would soon go squiff . I ended up frying it anyhow.

[AMDnut]

Soneji - The 350 and 400 overclocked pretty well, but the higher speeds are a little tougher. I believe this is due to the core not having anymore headroom left. About 600mhz seems to be the tops. I don't think the .25 core can get much more than that. (Mainly due to heat) Maybe the .18 mobile processors can do better, we'll have to wait and see............

[This message has been edited by AMDnut (edited 04-26-2000).]

[robo74]

AMDnut, I have the same monitoring program you do, but the temps are much higher. Idle for 30 minutes, I can get it down 90-91 F (32-33C) and I think this is way to warm. If
I set me alarms like youhave them, they go off while installing a simple program. It went off big time when I installed Q3 because its bigger. I have a server size case, over sized heat sink with fan on the CPU, 3 fans blowing out of the back of the case (inclu power supply) and one fan at lower front blowing in, and two smaller ones blowing in on HD in 51/4 bay. Its a ATX case so I dont have anything blowing at the CPU other than the heatsink fan. I have done no over clocking yet so this is all of the heat from 500mhz. The video card is only a 8mb, but I do feel some heat off of that as well. Let me know some thoughts on this.

Thanks
Rob

[AMDnut]

robo74 - What mobo are you running? What kind of heatsink are you using? Your temps seem OK at 32-33c, but if your alarms go off that fast, something is not quite right. Are you using heatsink grease between the processor and sink? Also, did you happen to lap your Heatsink to make sure it's flat? My GlobalWin was really concave which would have caused higher temps but I corrected it with lapping. Also, make sure your CPU is seated all the way down. Sounds dumb, but it happens. Also, double check your voltage settings. Let me know!

[robo74]

CPU is all the way down, I did use the grease, I havent lapped just yet (scared :-)). I am running a DFI mobo, the heatsink is a oversized heatsink but not sure if that is good or not, I think I will try to track down a place to purchase a Alpha??. I set the board to run the CPU at the standard 2.2v. Is it better to have more air coming in other than the one lower case fan?
Rob

[Soneji]

has anyone had bad experiences with the Gigabyte GA-5AA? And can someone tell me where to get all the diff. smilies?

[AMDnut]

robo74 - You can get your ALPHA here: http://www.coolerguys.com/CPUCOOL/alpha.htm
I've ordered quite a bit from them and they are very good to deal with. I've had no problems and the prices are good as well.

A basic rule of thumb for fans that I use is to have two (2) exhaust fans for every one (1) intake fan.

Soneji - When posting a reply, click on the "Smilies Legend" to the left of the text box!

[robo74]

Thanks for all your help AMDnut, and everyone else!!I checked over everything real well as suggested and also added a extra fan directly at the mother board so it would move the air better. I also ordered a Alpha heat sink :-). I was wondering if anyone knew any good case mod sites. Or perhaps have any ideas of their own. I am running a server size 6 5 1/4 bay case and has lots of room for ideas. So please share if you have any :-)
Thanks again all
Rob

[AMDnut]

Twin Turbo from here: http://www.3dcool.com/twinturbo.shtml


Best bang for your buck:
Great exhaust set-up for $25US!

[This message has been edited by AMDnut (edited 05-01-2000).]