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View Full Version : hit 150fsb, was it worth it?


sendatooli
11-19-01, 05:33 PM
got my 2 mp 1800's running at 150*12!!!!!! maxed out the voltage on everything. 2 screaming 40 cfm fans on sk6's.
fastest memory timings!

but>> 150 fsb runs my machine at 1/5 pci divider. this means the scsi bus is running at 30mhz. even though the whole system is steaming fast now the DISK subsystem is very important for what i do! it is scsi 160 raid. will 3mhz less on the pci bus make a big difference for me since the rest of the system is flying? or should i just back it down to 146? if i go up to 166 bus the system gets real flaky and i must lower the divider, but then the pci bus is overclocked.



thank you,
sendatooli.

craydog
11-19-01, 09:07 PM
what mobo ya got?

Kawalski
11-20-01, 04:48 AM
Don't know if this helps, O/c a processor and O/c the PCI. Basically similar, don't over do it. 38Mhz ran well on one system I had.

sendatooli
11-20-01, 04:48 PM
ive got a tyan thunder. i meant that 150 mhz fsb UNDERclocks my pci bus. at 1/5 divider it is 30 mhz pci. does this make a big impact on disk performance?





thank you,
sendatooli.

Warlord2
11-20-01, 06:48 PM
I dont think 3 mhz would make a big difference at all

you could try some benchmarks with it at 150fsb and thin at 146fsb and see if it makes a big difference

sendatooli
11-20-01, 06:57 PM
i think ill do that. 3mhz to the pci shouldnt make a big difference to the disk. and 4 mhz shouldnt make a big difference on the fsb. i just wonder which one outweighs the other in terms of absolute performance. the disk performance is more important to me than a few extra mhz on the cpu.
time to break out the benchmarks.
actually i dont like to sit and run benchmarks, but i guess some times i have too.





thank you,
sendatooli.

mEKbOY
11-20-01, 07:05 PM
Um... its impossible to adjust the fsb on a tyan thunder unless i missed something.. Can you clarify how your doing this.

sendatooli
11-21-01, 03:50 PM
with cpucool.




sendatooli.

mEKbOY
11-21-01, 07:49 PM
can you give me a link to this and some more info. There has never been one person who has been able to get the tyan thunder to change the fsb. the tyan tiger rev3 has been the only one.

sendatooli
11-22-01, 02:19 AM
someone told me about it. i just went to google.com and typed "cpucool" i dont know if it works with every rev of the board. it seems to work with mine. although, at first it didnt. but i kept trying and then it did. the clock chip they use must have a few more fsb's even though the bios does not.



sendatooli.

mEKbOY
11-22-01, 12:16 PM
are you using a thunder or tiger motherboard?

sendatooli
11-23-01, 02:13 AM
i just took cpucool and tried every type of ic. stopped when it worked. pressed 150 and it set it. at first it locked up everytime i did it. i just kept fiddling untill it worked. if you force your board to do stuff its not supposed to your on your own. as am i. any clock chip made today has more than 100 and 133. its not supposed to be done,though. although, us overclockers like to do a lot of stuff that isnt supposed to be done. i havent tried anything besides surfing the net with it. in fear it will crash. at first i thought i had killed it. then it booted again. so like an idiot i kept trying. come to think of it i dont know what speed it is really running at anyways. i am just going by the fact that i set 12x in the bios and loaded windows and hit the 150 fsb button on cpucool. it then read system speed:1800 mhz. but, it doesnt say anything about 2 cpu's. cpucool is for a one cpu system. i figure it must be running at 1800, since it was so hard to get it to boot. to tell you the truth, i unloaded cpucool anyways. it didnt seem safe, as it made the system temp skyrocket. its fun to go fast, but not worth killing something this expensive and new. so i am just running at stock speed now. it's fast enough right now. i dont really know anything about what i did, just get cpucool and fiddle with it like i did. dont blame me if you break something!


hey, i was also wondering, is your delta 50mm quiet at 7 volts? how much cfm does it put out at 7v? at 12v. it is outrageous!




sendatooli.

mEKbOY
11-23-01, 12:57 PM
Ok...im doubting that you have a tyan thunder k7 2462ung because you said you changes the multiplier in the bios to 12 and there has never been an option to do that in any tyan thunder or tiger bios.can you give be a pic of your benchmark showing your dual cpu's at that 12x150 your talking about....Sorry but you sound like a fake unless you have a single proccessor system.

Bimmer318i
11-23-01, 04:50 PM
Could he have hard modded the chips?..

just a suggestion..

Abirinder..

sendatooli
11-23-01, 10:25 PM
first of all, i never post anything to forums other than the text i type. if you choose not to beleive me that is fine.
furthermore, the mp cpu's (at least the ones i have,1800+) are not autodetected. you have to set the multiplier. try using some different bios versions. unless it's just my board or chips. although, i doubt that.

so now that you called me a lier, that is all i have to say on this subject. which by the way started out as a pci performance thread.

oh yeah, you also failed to answer my question about your fans. see my last post.



sendatooli.

mEKbOY
11-23-01, 10:28 PM
the fans run nice and quiet and well...temps are 40c... i still doubt your setup. But it doesnt matter anways..im not sure about the pci orblem... check www.2cpu.com . they specialize in dual stuff and can probaly help you out at there forums.

mEKbOY
11-23-01, 10:34 PM
Which bios version are you using too.... never called you a liar or mean to... just i have seen countless reviews and forums and have never seen someone do this thats all. Also... i dont get how you changed the multiplers..i have had to do it using golden sockets...its a hassle and would love to leanr a new way.

sendatooli
11-24-01, 12:20 AM
hey, i'm sorry. i didnt mean to get defensive.
it has bios 2.07a. the one it came with. it seems if you try to force things on this board it does it. i now have stability problems. i went into the bios and tried to change the multiplier it just blinks and wont let me change it now. before i just kept hitting + real fast and finally it changed. as to cpucool i dont know if it changed the fsb or not. all it did is make the system unstable. i have to reinstall windows now. my pci problem is irrelavant now, since i unloaded cpucool.
it's really fast enough, but i cant be happy untill i break something. sigh.

about your fans, how much cfm do they put out at 7v? are they as quiet as a ystech 27cfm? because at 12v they scream.


sendatooli.

mEKbOY
11-24-01, 12:58 AM
That sucks you have to format.. I had to do the same when i tried to install my ati tv tunder because ati didnt have the proper drivers out as usual.:mad: i am using the same bios version i cannot see anywhere to change the multipliers. No other tyan thunder user has... You must of got a magical board. Im quite over it now though..my golden sockets work well. As with the fsb thing it might work but i have been told by professionals that the boards crystal that it wont work... My system is running so fast that i dont want to even bother messing anything up. The fans are so loud at 12v that my ears would start to hurt from the vibrating these things make. At 7v there almost silent. The cfm seems to be about 30-35. The sk6 are great at getting rid of heat. The sinks are barley warm and cpu temps are about 38-40c. Just try it out on your 3-4 pin converters to see what it is like. I will never go back to 12v.

sendatooli
11-24-01, 01:30 AM
it just says 100/100 and you can change it to 133/133. above that it says cpu then a number(in my case, now 12) then a x.
i didnt want to flash it because some people told me they never saw it change before, when i changed it. now it is stuck at 12. i think the 1800 is supposed to be 11.5. the fsb thing i dont know if it really switched it or not. i think it did because it locked up the first bunch of times i tried it.
anyways, my system is all messed up now. i have to reformat at the least. and may have to rma the board. so trying to force things isnt a great idea. i should have been happy with what i had and not even opened my mouth about it. i even already cracked one of the cpu's! it still works.
come to think of it, i have destroyed every cpu and mainboard i have ever owned. trying to overclock them. i would have saved some money if i didnt have to keep buying new machines. this system replaced an intel system that only lived 5 monthes. i should just stop messing with stuff, because i'm not very good at it!

about the fans, i think i will get 2 today. the delta 38's at 12v. are killing me.



sendatooli.

mEKbOY
11-24-01, 01:49 AM
OMG.... your stuff about killing everything is just like me....were brothers i tell you....I have went through about 4 athlons i think... can rememebr after the third....a geforce 3...etc...Got icq?...

Maximus Nickus
11-24-01, 05:29 AM
Sounds like you two have bad luck oc'ing!!
My 1gig TBird hit 1200 @ default vcore wif a maky jetway (had to mod the multiplier on the chip!!!!) as the board had no adjustment and the fsb oly went to 110!!!
Just as I was about to get my nre 8kha+ board and oc my screamer failed whilst i was upstairs (3 story house) and I came down and sniff sniff, well you get the picture funny though that it didnt hang and was still working when i hit the power off although the hsf was BOILING HOT!!! Now it dont boot......
So a new 1900+ is on the way, unless the 2000+ is out!
Anyone know when its out?

sendatooli
11-24-01, 09:34 AM
guess what!!! i see why you didnt beleive me. i had to flash the bios. everything seems to work now. formatted too. now the multiplier adjustment is gone! with the same bios. i did some searching, and i found out that there is a programmers tool that allows you to modify a bios with extra features. all i can think is someone used something like that before i got my board. all the boxes at the store were open and these guys dont seem honest. i wont say who they were, though. thats not really fair to them.

anyways, i was wondering, do your cpu's run 40c. idle or full load? if thats idle it could be too hot! i was also afraid to run my fans at 7volts, because i just read the fans might not start one day at 7 volts! then we would be screwed! it also says your power supply wont last very long if you do that! it even says your power supply can go up in smoke the first time you try it. i think ill leave this one alone. with my luck. i didnt want to write the site where i read this because you arent supposed to advertise here. plus if you are at 40c. idle that is like only 23 cfm. i hope yours keeps working! i didnt mean to scare you, if it works good for you then i guess its ok. i wont try it untill i get more info. i'd love to quiet this down,though.

i think i will leave things alone before i kill something else!


sendatooli.

mEKbOY
11-24-01, 12:01 PM
Glad to hear everything is working as normal. I knew that there had to be something up with your board. Whoever you bought it from prably made some bios but either way its not good for your board. Especialy when its $500. I have never heard of a power supply or and damage occuring with running fans at 7v. Mine have been doing so fine for the past week now. I did a test to get my temps straight. Idle temps are about 37c. Load temps are 42c. Not bad at all considering the noise. Also ne noted that your using the new MP chips. Im using the older 1.2ghz that run much hotter and can take more heat. Just give it a try at 7v or buy some sunon 26cfm fans. You could try getting some 60-80mm adaptors and try that too. My future cooling upgrade will be a better case that has better airflow. Im about 90% happy with my sinks and fans ay 7v right now. If you want to Overclock those again get some golden sockets. They have worked great for me for the last 3 weeks now. You cant adjust your fsb but i know how to tweak some memery settings that got me some extreme memory scores. Heres a link to my previous post with about my rig:mine (http://forums.overclockers.ws/vb/showthread.php?s=&threadid=47197)

Maximus Nickus
11-25-01, 02:24 PM
Originally posted by sendatooli
i think ill do that. 3mhz to the pci shouldnt make a big difference to the disk. and 4 mhz shouldnt make a big difference on the fsb. i just wonder which one outweighs the other in terms of absolute performance. the disk performance is more important to me than a few extra mhz on the cpu.
time to break out the benchmarks.
actually i dont like to sit and run benchmarks, but i guess some times i have too.





thank you,
sendatooli.

I don't think the 3 mhz will make any difference, exept stability!!!

sendatooli
11-26-01, 01:10 AM
mekboy, try this www.7volts.com i dont know if i should post links here, but other people do,so.
anyways running with the 5volt rail as the ground can damage the whole system esp. with amd. i dont mean to discourage you, if it works thats great. ive done enough damage. so i think if i try 7 volts i may just use a resistor. actually, now that mine is not overclocked i might as well just put my sunnon 27cfm fan's on. they run it at 38-39c. under full load. now that it is broken in. there are 80mm adapters for the sk6's? if i put a 80mm fan on them with the regular clips(tight fit) all the air spills off the sides. it runs hot then.


on a sad note, the lan on my board has stopped working! at least for the moment. i hope it works again! i dont know if these guys will take it back. if im out this much money ill go off on them. since they obviously played with the stuff before i got it. they wouldnt even exchange memory that has a lifetime warranty.


well i'm done messing around, as soon as i get the nic working im using the system as is. i'm not even gonna get the golden sockets. when this machine is a year old and no longer fast, then i might mess with it.

about the pci, that doesnt even mattter anymore, since i am not gonna overclock it again.

plus, that cpucool fsb changer probably worked because it was communicating with a bios that didnt belong on the board. just a guess.



sendatooli.

Maximus Nickus
11-26-01, 11:01 AM
Youch,

That sounds risky...

mEKbOY
11-26-01, 10:13 PM
My 5v rail stays at a little over 5v which is good. Its been up like this 2 weeks now quiet and fast. You should get evrything working properly using those sunons which are more than effecient for the Mp's. Then once everything is going ok decide if you wanna overclock it. That place you got it from did something to that board that shouldnt have been done. Hopefully things work out..keep me updated and ask any other questions you have. ICQ me if you want to as well.

sendatooli
11-27-01, 01:18 AM
thank you, mekboy.


sendatooli.