View Full Version : Power supply Unit Poll: For Tbird systems
I Blew out my 300W Coolbits PSU trying to get my new KK266/1.2 gig 266fsb tbird going....never got the cpu to even post and after a few hours of trouble shooting my PSU died... (lucky I had an old 230w psu... it just barly seems to power my old P3V4x/p3 600@800 system.... I orderd a new PSU 400w Psu from Antec.............Im praying that the reason i could never get my tbird to post was some problem with the PSU which ultimatly lead to its demize........SO what PSU's are people using with the tbirds?
Rob Cork
03-17-01, 11:29 AM
I'm just using a generic 300W supply, works fine for me. Have you made sure nothing was shorting out to the case, that could prevent the comp even posting and could kill a psu. The first comp I built was shorting out on a screw holding my sound card in place, I didn't kill anything but I count myself damned lucky for that :)
well After I could even get the motherboard to light up i suspected somthing was mojor wrong with the MoBo/cpu or the PSU so i put my old ASUS p3v4x/p3 600@800 back it... and nothing the case fan would turn about 1/4 inch and that was it.... so i switched out the PSU and the p3 booted up no problem..even went crazy and stuck the KK266/1.2 gig back in and tried to at least get the cpu to post... never did.... but that was on a 230W psu.......i dont know waiting on the new PSU before I can know for sure it that was my problem........:)~
I'm using the 300 watt supplies that came in my Enlight 7237 cases. They seem to be doing a great job for me. System specs are below.
as ive herd from many people amd duron/athlons need a minium of 300w
or they wont boot or if they boot they crash when you try to do somthing
Kriegster
03-17-01, 05:06 PM
i just got a 1.2 i'm running in a kk266 and unless i severly underclock my cpu the system crashes under heavy use. I am using an older case with a 300 watt. The cpu isn't one of the axia's so i am rma'ing it back and getting an axia. if that cpu crashes then I guess i will have to get a new power supply for it. btw, elder, did you try running your mobo while not bolted into the case?
ive not tried that... but I will...... soon as i get my new PSU.... i do have little 1/4 inch brass or copper risers though... which keep the MoBo of the case pan and which i bolt in to..:)
thx for posts all keep em coming...:)
The Premier 300W power supply that came with my Enlight 7237 starts to collapse when I try to OC my T-bird using core voltages above 2V. The +5 output can not cut it.
Hoot
Kriegster
03-17-01, 06:34 PM
Elder (Mar 17, 2001 05:29 p.m.):
ive not tried that... but I will...... soon as i get my new PSU.... i do have little 1/4 inch brass or copper risers though... which keep the MoBo of the case pan and which i bolt in to..:)
thx for posts all keep em coming...:)
yeah i think the 300 watt just don't handle over 1200 mhz. i unplugged some of my fans and drives and now my pc is running better. I got it running a continuos quake3 demo at 1280 and 170 bus speed. I was wondering what happened because when I first installed my mobo i was running at 1333 and I installed my os at that speed and all worked well. after i installed my board and set up my other drives and stuff the thing wont boot over 1300 and won't run under heavy load over 1ghz for any length of time :( I already got an rma and ordered a 266 bus cpu so I guess i'll have to swap anyway. I'm gonna order my new power supply tomorrow after I run a few more tests. I am going to run at this speed for 1 hour. then i will plug in 5 case fans and see how long until it crashes. unfortunately they want an arm and a leg for a 400+ watt power supply :( cheapest I have seen 1 for is 64 bucks :(
$64.00 for a 400W PSU is a good price!
Locally, cheapest you can get them for is $110.00 !
Hoot
Kriegster
03-17-01, 06:54 PM
Hoot (Mar 17, 2001 06:48 p.m.):
$64.00 for a 400W PSU is a good price!
Locally, cheapest you can get them for is $110.00 !
Hoot
just found 1 at comp usa for 79.99 for an FMI 400w and they have 10% off on all items this weekend i think for walk in sales. Guess I can buy it and try it and if it doesn't help I can return it :) hehehehe
update.....screw it they are open for another hour. i'm going to score 1 and see if it fixes it. i'll let yall know later if it works. hope they are in stock, the website says so but they update that like twice a year or something like that
here is a link to the Antec 400 w psu i ordered for 80$.... its supost to be top notch and is on the official "amd" PSU list
http://www.minotaur.com/index.php?go=p_case_power
the PSU is: Antec PP403X
Antec's 400W Power Supply for ATX Info 18300061 $81
my friend was desperate to upgrade his pc so he had his mobo runing in a plasic tea tray like the ones you can get for 0.50p at the corner shop the clear couloured thigs it ran really cool but his brother kept trying to tuch it
lol
I'm wondering if part of the problem isn't all of these high speed and powered case fans we are loading the cases down with these days. These things consume several watts by themselves. I have rebuilt AT supplies, and I think I want to get my hands on a good quality...dead ATX supply, rebuild it with over rated transistors and filters..and make it worth about 500 watts.
About the only thing that goes out in these psu's are the switching transistors from overload/heat. Replacements for a 200-300 watt supply run between 10 to 15 bux (there are two) I would think that a heavy duty version, that would make the supply worth about 500 watts would cost about 15 bucks each. The filters usually run about 10 bucks each, and there are two...so, rebuilding a supply ain't cheap...unless you can buy the parts wholesale somewhere. But..what would a 500 watt supply cost new?...well over the repair cost of a dead 300 watter.
Kriegster
03-17-01, 08:36 PM
ok. i got a el-cheapo brand 400w power supply for 72 bucks. they had the antec for 90 bucks, but i decided to save the 18 bucks for a hooker...er i mean for a pizza :)... anyway instead of getting the beap of death at speeds over 1300 now the computer at least tries to get into windows at least. I have a q3 arena demo loop running now at 1275 mhz (7.5 x 170) and if it can run for over an hour or 2 that will prove that the 300 watt ps was the troublemaker :) I'll update this thread in a couple hours and let y'all know if all is well. Unfortunately my cpu still wont run stable over 1300 or so so I am glad I'm sending it back. If i didn't know better I would have sworn it was an *ntel cpu :) heheheh
Update.... well the damn thing is still crashing. it runs fine for like 20 minutes then it shuts itself off. sheesh
Kriegster
03-18-01, 02:08 PM
well the power supply definately helped elder. With the 300 watt psu I would get the beep of death if i try to boot over 1300, now with the 400 i can get through the bios at up to 1366, although I can only run styable at 1300 or less. My pc seems to be better now that I disabled 4x agp and fast writes. I found a new problem, when I leave my pc unattended for a while and it goes into pwer saving mode, when I come back the video has glitches and when I look at the properties on my geforce2 the stupid computer underclocks it to like 30% of its default value ( 100core/133 memory) or someyhing like that. Guesss I better disable that and go to a screen saver :) upgrading my pc has turned into a full time job :(
Hoot (Mar 17, 2001 06:48 p.m.):
$64.00 for a 400W PSU is a good price!
Locally, cheapest you can get them for is $110.00 !
Hoot
GO TO PRICEWATCH- look under case power supply and under the search topic, type in 450 watt power supply (123 computers has them for $99.00 includes shipping) :-)
jeff_harrison_344
03-22-01, 08:41 PM
Im usin a new 440W
430w Enermax!!! from Crazypc
Pat
Acting on Kriegsters tip, last Sunday I went to the closest COMPUSA. They didn't have the 10% discount. My guess is, it was a regional thing. They had the FMI unit for $79 and an Antec for $99. I was in an impulsive mood, as we all get from time to time and didn't feel like waiting a week for a mail order unit.
[bInvestigation Time[/b]
The Antec had the specifications right on the box. The maximum wattage for the combined +5 & +3.3V outputs was 245W. My Premier supply that came with my Enlight was only 145W. Great! that's an additional 100W of +5 & +3.3 to play with.
The FMI did not have the specs on the box, so I opened it and pulled out the supply. Hey, this is only 165W +5 & +3.3 combined! That was not much better than my 300W Premier! I kindly repackaged the FMI and bought the Antec.
Now, I can push my unglamorous 650 Tbird to 1Ghz (10x100) at 2.35V It's not running that right now, as that excessive core voltage really put a strain on everything. That is the equivalent to running a 1200 Mhz T-bird at 1600 Mhz using only multiplier bumping.
Definitely not for the cooling challenged. My KT133A base motherboard may be here as soon as tomorrow. I can't wait to see what I can get when I can bump the FSB also.
Hoot
Kriegster
03-23-01, 12:18 AM
wow thats some major vcore you are pushin bro. I bet i could get my cpu to 1.5 ghz with that much juice. My fmi psu is doing well with my new cpu. i am running it at 1420 mhz at 1.93 vcore (1.85 bios, 1.93 via hardware monitor). I think my 300 would have roasted. I guess when the dual athlon mobos come out they will require 500 watt power supplies. if i leave my computer on constantly i don't need to heat my room anymore :) heheheheh
Enermax 651 and a 400 watt Jinco. FWIW, the Jinco is built better than the Enermax but you need to add a 92 mm fan on the bottom.
Enermax 451 with CompUSA 250W to power pump and radiator fans
Ghettoweasel
03-23-01, 09:31 PM
Got a Sparkle 250W powering a DVD drive, CDR/RW, 2 ide HDDs, 1 SCSI drive, 1-120mm fan, 2-80mm fans, 1 delta, whole slew of cards, and a 1.2 tbird.....not a single reboot problem yet
cookedcomp
03-23-01, 10:48 PM
make sure that the venelation and air flow is good to your psu. it will prolong it's life
Enlight 300 Watt powering some 6 huge fans, 1.2 gig at 1.45 gig, and all the stuff below. I plan on a voltage mod on my board to push the VCore over 2 volts and I plan on upgrading the PSU then. For now though there are no problems. I will need a better one when I go for 1.5 ghz in the next couple weeks though. I am thinking 450 Watt and my old 300 Watt for the fans. That oughta cut it.
Bartman
03-24-01, 04:23 PM
Right now I am running the below system [No MX yet, just a TNT2 Ultra] with the stock AOpen 250Watt that came with my computer case.
I ordered the new system all at once, but the Enermax 331Watt powersupply was not in stock. It "Seems" to run fine that way it is now, but I want to add a few more fans (and the cooling of the enermax will be welcomed as well!) So it will run A-OK with the new 331W PS.
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