I have a Asus motherboard P5RD1-VM , with P4 630 3.0GHz processor , 2X512MB Kingston DDR400 and x1300 ATI graphic .

With Old Colorsit 480W PSU , My Overclock P4 can go up to 3.9GHZ ... But after i buy a brand new RM78 Colorsit Pure power 500W PSU , the computer keep restart and show "Overclock Fail , Please press F1 to run Setup or F2 to load Default "

The Clock Stables at max 3.53GHz ... I am puzzled .. i think i been cheated by the shop .

Then i go to another shop to buy a RM180 Power Logic ATRIX Real Power BTX 500W . Same thing happen and The thing gets worse ... Now only stable at max 3.45Ghz ....

I don't think ATRIX will give Lousy power output .... as it have mention the total power Peak output will be at 1KW ....

Anyway , is that dealing with power ? or any other Factor , such as overpowered PC cannot be overclocked ?

Or should i Buy the RM4++ Cooler Master 550w SLI power supply ?

I don't think my P4 with x1300 use that much of energy ....


EDIT :
Cooler Master 550W SLI bought .
New Info at :http://forum.lowyat.net/index.php?showtopic=306658&view=findpost&p=7720803

This post has been edited by RIGmaster: Jul 8 2006, 10:31 AM

check on the power supply stats in ur bios...see if the rails are giving stable output....

Even more stable than before . expecially the 12Volt rail in my ATRIX PSU (12V Dual Rail )

Colorsit 450watt
Vcore :1.25V (nominal should be 1.33V)
3.3V : 3.34V
5.5V : 5.03V
12V : 11.34V

ATRIX 500watt Real Power BTX
Vcore : 1.34V
3.3V : 3.34V
5.5V : 5.48V
12V : 11.94V

Just don't know why when start up , it will hang there without any BIOS post ... Then if i press restart button , it came out "CPU Overclocking Faliure "

That's what puzzle the most ..... Wierd Mobo ...

???????

Any one had this problem before ?

Or i had my Prossessor "ROSAK " due to previous Overclocking action ... I never Volt Mod or have my Load Temp > 42 celsius ...

Here "pening , Pening " already .

Problem is all the 100+ psu's you bought may not be qualified for overclocking.

Good discussion on PSU's:

http://forum.lowyat.net/index.php?showtopic=218930

RM 78.00 can get pure power PSU ????

lol you want to complain about overclocking on budget colorsit PSUs?

the base minimum should be HEC

Anyway , i gain more overclocking power on Colorsit .... Up to 3.8Ghz man ..... P4630 3.0GHz meta stable at 3.8GHz without any problem . Some more i check the real Maximum output only 423Watt .

Yesterday , My Overclocking Power Drop to 3.3GHz on ATRIX (Real Maximum 1KW) .... And now All voltage 3% more than normal , I think is Overpowered ....

Unless someone can say ATRIX is cheating ....
Anyway , for my Computer with x1300 graphic , i think 380Watt is more than enough . Just Puzzle with 500w PSU ...

probably the psu's are having weak rails
did u see any fluctuation of voltages when idle n on full load

i doubt those psu are having good ampere ratings on each rails, esp 12v rail

u know.. i'm getting sick with so called True Power PSU for OC..
i'd also got same experiences as yours..

using True Power PSU cannot oc high..
using chapalang brand can..

if others component compromise with the True Power PSU.. why cheapo PSU i using almost 1 year not fail me once? that's totally mean not other hardware problem.. the True Power PSU is the culprit..
(it's not a reason when we paying RM500 for the PSU should have incompatiblity issue - it's just sound stupid and will baffle us forever)

if others keep telling using normal PSU will lead to damage the hardware... well i'm not going to use my rig forever... afterall it's needs to be replaced..

Try popping your old Colorsit and see how it goes.
Hmm.. My Acbel also just died on me for no reason. Cannot handle high wattage output now. Not sure what's the problem. Even worse, sleeved it.

I just bought Powerlogic PSU.. I can say im not satisfied with the performance also.. NOT suitable for OC.. normal use can..
my pc is 2.8E .. last time use my chapalang 220w also can oc till 3.06.. now oc 3.06 the pc restarted.. haiz.. any other psu to intro? dun so expensive lar..

i wonder, what true power psu did u guys bought
is it well known brand like CM, Enermax, OCZ etc ?
or juz some random brand with "true power" tag
even branded like acbel have low end n mid/high end range..
dont expect low end to perform as great as mid/high end range

u get what u pay for

Powerlogic also well known in mid-range lar..
What strange is my cap ayam psu 220w can oc but this 300w true power brand powerlogic cannot oc..

I think i have some "starting error " ...

Haha , hard to find other brand of PSU here in Sungai Petani ... Hunt high and low , only get Magnum,Colorsit ,CoolerMaster(Max430watt only) and ATRIX .... Others ... never seen one ...

Anyway The Voltage in my ATRIX PSU is extremely stable , Really only flatuate 1.32V to 1.34V on V Core and 5.08V to 5.11V in the 5Volt rail ...
Anyway still flatuate a little , cannot stop the flatuation anyway ...

Somehow , i had found that only the First Boot is very unstable , after wards , OC to 3.8GHz , no problem ... , just the First Boot ...

Anyway i had just Dissable the Enhance C1 Control , TM control , Speed step , Microcode update ... and now can run at 3.8GHz stable* . Just a problem with First Boot .

Everytime when i switch on the main power source and Push the Power on button , all things run but the screen is black ... Bios is not booting . Then i Press the Restart switch , every things seems O.K , even to 3.8GHz is no problem ... even with as many restart without unplug the main power source is o.k. ... just "hang " at the first boot . In order to Boot the first Boot , you must had 3.3GHz clocked CPU instead of 3.8GHZ ...

Just Curious ... Why like that ah ? Spped Step error ka ?
MoBo Startup error ?
Bios error ? (updated already , still the same )

Or i really need the Cooler Master 550Wat SLI suported edition to run my baby ?

i dont think u need a SLi certified psu to power up ur rig
from the problem u mention, looks like it got something to do with the saved voltage settings, probably bios prob/cold-boot issue
did u raise the voltage for the OC speed?
did google lead u to other user having same problem with mobo/bios?

----------
im not familiar with powerLogic
but even with low end acbel, CM etc, u'll have a very low A rate for 12v rail
with low A, the devices may stress up the rail till it become unstable
so, aside looking for brands when buying psu, do look the A rate for the rails. 22+A n above on 12v rail is a good one to start with [single rail psu]

This post has been edited by e-jump: Jun 29 2006, 12:46 PM

Seriously, who the heck is powerlogic anyway? Mid-range psu? Brand?

Haven't heard of them anywhere except Malaysia, Singapore and Indonesia. Google also can't find anything useful

What an insult to me..

WTH ? just checked.. my system all overpowered kar?

Vcore - 1.36~1.37
12V - 12.03~12.09
3.3V - 3.37
5V - 5.13
VBAT - 3.15
5VSB - 5.10

This post has been edited by Amedion: Jun 29 2006, 01:51 PM

I'm not insulting you. Don't think it as such please. Just trying to clarify things only.

I'm just curious how come there's a lot of forumers (even some supposedly senior ones) recently that claims Powerlogic as a good mid range psu and that it's better than Icute.

Is it because Powerlogic sounds more western compared to Icute?

I've been googling out of curiousity and couldn't find anything about it except that it's by a Singaporean disty Leapfrog and that it only appears in Malaysia, Singapore and Indonesia.

It can simply be some cheap-a$$ generic china sweatshop product stuck with a label.

Could anybody help clarify?

Thanks.

Just wondering. Is the Acbel Ipower 450w a low end PSU?

I guess I'm just plain unlucky.
But still, rigmaster, what you're facing is most probably cold boot issues, where by your comp will only boot up when you restart it. As far as I know la...

Hmm.. This seriously makes me wonder... How come that chapalang can perform better.

This post has been edited by Enigmatic: Jun 29 2006, 02:36 PM

Everything's build for a price.

But at least we know who Acbel.