1700+ JIUHB 52 week madness!

[NoOne]

Im sure that my PSU have problems.. why?
Because i run my PC at 10x100Mhz (1Ghz) 1.6v (default).. without any PCI extra card and any CD-ROM, only 1 60GB HD and 1 voodoo3 3000.. without overclock..

I leave my PC in idle.. for 1 our.. and when 1min before i pic-up my mouse.. its reset...

Very crazy.. my 3.3line is 3.18-3.22.. i think this is the real problem

[KnightElite]

Originally posted by STEvil
If I can get a JIUHB 0251 or better, I am happy.. 8-)

EDIT

wherefrom, KE??

www.vibecomputers.com

[morphling1]

My 3.3 line are also low 3.18-3.2 V, but still that does not mean I can't run my ddr at 200+
I'm just saying the problem could very well be somewhere else, rebooting also doesn't necessry means bad psu, turn auto restart in window system properties and it will very likely be BSOD that you couldn't see, and with my experience that was always the problem with memory or cpu overclocked or set up wrongly. PSU could be the problem if your Vcore fluctuate like crazy and if sometimes drop to low that mean cpu didn't get enough juice and it crashed. My 5V line was as low as 4.4V but my cpu was still stable and the problem wasn't in bad PSU but bad atx plug conection, so it got hoter and hoter until I didn't check that out and find out the conector is burned.
To remenise a little :



And here my new made 1mm copper wire plugs:


No problem from then on, same el-cheapo PSU that can easily run even my most overclocked cpu.

[N8]

As I said last week I fried my 400w Antec. I've since powered it up w/o it hooked to a PC & used my multimeter to test the rails on it, & had to laugh at the results. I tested the 12v line & it fluctuated rapidly between as low as 10v & as high as 13.5v. Both the 3.3v & 5v rails had similar behavior.

Anyways, over the weekend I wanted to do some more testing on my new CPU so I steal the 450W Allied PSU out of my duallie, swap a 350w generic PSU out of XF4 for the duallie, & replace XF4's PSU w/ my trusty Enlight 250W...nearing 3 yrs old. Needless to say, I didn't adjust the OC or voltage of the 1600+ @ 1909MHz in XF4 1 bit & its run flawlessly on a 250W Enlight PSU. This is @ 11.5x166=1909MHz, DDR setup. This PSU ran the rig I had up before I built the duallie for over a year, another DDR setup. I only replaced it due to building the duallie. I just figured that 2 CPU's would require more than a 250W PSU...just my gut feeling tho, it didn't actually fail any tests.

I'm a firm believer that if you're going to build a machine that you're wanting to OC to the max that you should buy a nice PSU, but you don't need to spend a fortune. I like to have a 450W to rule out the fact that it could be the PSU holding me back, but that certainly doesn't mean a 250W couldn't do the job...you'd just never know if ur PSU was holding ya back or not if ya didn't have a monster to verify this against

[morphling1]

I agree
but something is strange with those 400W Antec's. I had the same one, before current 380W TP. I adjusted the pots too, and it worked great until one day when I powered on it just realease loud bang, in it was dead. So I'm guessing it had to do something with manualy setting up the pots. I increase my 3.3+ line from 3.2 to 3.45V in mbm. You probably did the same right N8, just something to think about

[NoOne]

Morph.. how did you manualy set 3.3+ line to 3.45v ?

[N8]

Yep I did the same morph

NoOne...by turning pots inside the PS

[NoOne]

Sorry, im brazilian and my english is not so good
Can you help me to understand what is "turning pots inside the PS".. whats the meaning of POTS ?

Thnks and sorry for my baad english..

[morphling1]

POT as potentiometer as variable resistor

[NoOne]

Hummmmmmmmm... Pots is "Potenciometros" in Portuguese
do you know how can i do that ? some guide or anything like these?

Thnks to altavista.com

Edit: Thnks you to morphin1

[N8]

You can only do it if your PS has the pots inside. They're pretty obvious so if your PS has them you should see them right away. You just have to turn them to change the resistance & voltage.

Mind you I do this while running & under load but its prolly not the smartest way to do it as you can get shocked quite easily. Also that opening the PS voids your warrany most times

[morphling1]

You too I did the same so much easier if you can watch the voltages in bios while turning the pots, but you have to be EXTRA carefull, doing this.
Otherwise its try and see method on power off PSU, don't forget to go in small steps, turning 1 degree can already change the values for 0.1V. Also there are probably two pots on for 5+&12+ line and the other for 3.3+ line.

[NoOne]

My PSU is an Fun Hung.. its really sux
i dont see any pots in PSU..

My new PSU is an Maxxtro 500w.. but i dont have it in my hands

[N8]

Ok, few threads back I reported # 2 chip as max'n @ 2250MHz @ 2.1v...I Prime'd it for 39mins @ 2GHz - 1.65v & no errors. I don't have time to prime for 24hrs, that tells me she's pretty stable.

The 3rd chip is in right now. THis one also liked a ton of voltage. Max'd out for 3D @ 2300MHz - 2.15v. I'm doing Prime on that 1 right now for about 30mins so far... 2GHz - 1.6v(default). Nice...these things are like 2400+'s for $50

4th & final chip will go in in a bit. We'll see what she can do.

P.S. Ordered yet another 1 from Newegg today just for chits & giggles

[NoOne]

Whou!!

I still dont received my new PSU ..
But.. i try some overclocks today and run sandra memory burn..
Before it i can only run 143mhz is cas3.. now i was able to get 153 Mhz is CAS3..
Can you belive on it? I dont try tu use CAS2 yet but.. 153Mhz is good enought because my PCI is too high.. (1/4 divider for 153 is about 38,25Mhz..)

[Jupiler]

Originally posted by morphling1
I agree
but something is strange with those 400W Antec's. I had the same one, before current 380W TP. I adjusted the pots too, and it worked great until one day when I powered on it just realease loud bang, in it was dead. So I'm guessing it had to do something with manualy setting up the pots. I increase my 3.3+ line from 3.2 to 3.45V in mbm. You probably did the same right N8, just something to think about

You guys are starting to scare me
I also have an Antec 400W hooked on my 8RDA+ and 2100+.
The 3.3V line has been adjusted to 3.4V not so long ago (for the IT7 v2.0) and I haven't changed it since I installed it last week.
Now, I really hope that it won't burn-up or explode, just like you and N8 have experienced.

[N8]

hehe Jupiler. Mine didn't physically catch fire or anything...just took a dump

Working on the last chip I have here...this appears to be the slowest of the batch so far...taking alot of voltage @ very low MHz, lol

Report back w/ final results later.

[kchip]

Guys,

I have an Antec 430 TruePower. Im running an 80w TEC for my Gf4 off a 12v plug. I have noticed that my 12v line is around 11.80 most the time.

So I believe that is still in spec and all , but does my PSU have the pots you guys have described. Im not worried about voiding the warrenty - butIM curious if someone knows the answer before I even bother to crack it open...???

[N8]

I had an Antec TP 430W & it didn't have the pots. I don't know if they've changed that since...this was approx. a year ago

[KaKa]

hey! NoOne... hehe hello! remember me? :p

I use 2 Maxxtro's 500W and none of them have pots.... sorry...

Morph, what's your PSU brand/model? never seen one with pots inside....

[N8]

I have an Antec 400W[PP-412X] & 2 Allied 450W's...they all have pots inside

[WannaGoFast]

Ok finally got a look at these badboys

ack.....one is an aiugA..wtf...boooooooooooooo NewEgg

doesnt boot over 2000Mhz...period.

The other is a JIUCB 0251

seems good for around 2200 Mhz so far.

will test more tommorow.

peace

WannaGoFast

[LBJGH]

Mine is running nails at 2135MHz on air.

[morphling1]

All true power PSU's are without pots, thats because they automaticly hold the lines in +-3% area and that's good for everyone, except those overclockers who could use a little more juice on 3.3 line for chipsets (VIA mobos) I'm probably losing few FSB MHz because my I/O is at 3.2V but I still love this PSU cos' of the silence.
KaKa, pretty much all other PSU got pots inside, but they're usualy hidden under some wires, or in some very ackward position. Let me see if I can found that link about setting pots in Antec SmartPower

[morphling1]

Here its is http://www.3dxtreme.org/psumod.shtml just look where the 3.3 pot is hidden