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Discussion Starter #1 (Edited)
hey :smooch:

I have a problem, and I'm helpless. hours before going to the shop.. I hope you will reply faster.

My system is:
P4 650
Asus p5p800
1Gb Mushkin blackline (2-2-2-6)
like, crappy 500W power suply (came with the box)
Asus star ice
Winxp x64

In the past several days, the pc boots without any reason. it might take minutes, it might take hrs - but it will eventually. temps are fine (47 cpu, 33 mb). THATS TRUE, I did some extreme oc (run upto 4.08Ghz) - just toying around to check apps. now, I'm back to stock speed (3.4Ghz), and this stuff happens :4-dontkno

I investigated the problem, and the best possibilities I could find were :

a) Power supply unit is dead.
b) Cpu is toasted.
c) m/b is toasted.

now, assuming the power supply unit has gone bad - can it malfunction after several minutes/hrs of usage ? If its "broken", shouldnt it just wont power up ? PLEASE correct me if I'm wrong.

if its "b", is what I described fits here ?

how can I tell if its "c" ?

****replies will be *much* appreciated asap****
 

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Absinthe said:
hey :smooch:

I have a problem, and I'm helpless. hours before going to the shop.. I hope you will reply faster.

My system is:
P4 650
Asus p5p800
1Gb Mushkin blackline (2-2-2-6)
like, crappy 500W power suply (came with the box)
Asus star ice
Winxp x64

In the past several days, the pc boots without any reason. it might take minutes, it might take hrs - but it will eventually. temps are fine (47 cpu, 33 mb). THATS TRUE, I did some extreme oc (run upto 4.08Ghz) - just toying around to check apps. now, I'm back to stock speed (3.4Ghz), and this stuff happens :4-dontkno

I investigated the problem, and the best possibilities I could find were :

a) Power supply unit is dead.
b) Cpu is toasted.
c) m/b is toasted.

now, assuming the power supply unit has gone bad - can it malfunction after several minutes/hrs of usage ? If its "broken", shouldnt it just wont power up ? PLEASE correct me if I'm wrong.

if its "b", is what I described fits here ?

how can I tell if its "c" ?

****replies will be *much* appreciated asap****
Hi,

Unfortunately it could be "A", "B", or "C", or even something else. Also, although you have done a good job of outlining what you have done with this unit, I had some difficulty understand what it is doing AT THIS TIME.

When you boot it up (assuming it boots), what happens? Does it post and go on, does it just shut down, does it beep, what does it do since you are back to running it in standard mode?

This should help one of us to assist you and help with troubleshooting.
 

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Discussion Starter #3 (Edited)
well, what happens is it finishes the boot (standard mode), and when doing heavy calcs (movie transcoding, Folding @ Home, rendering lightwave scenes - it crashes. no beeps, no whistles - nothing. just reboot.

if its the psu, is this a "normal" behavior of a bad unit, making random reboots ?
funny though, I run cpu stress apps. works like a charm :4-dontkno :4-dontkno
 

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Hi,

Sounds to me like either heat or power supply issue. There could be other issues, but this is my first impression and where I would put my money if I were a betting person.

We really need to know the brand name, wattage, and outputs for the power supply. Tell us what is the output on each rail according to what is printed on the side of the power supply. Those amp readings will help us to know what you are dealing with.

I know you gave us a temp reading (under-stress or at-rest????) but we need a more comprehensive reading.

What I would do if it were mine is take a look at the ASUS probe on your unit and see what the voltages are. Then take a look at the temperatures both at-rest and under-stress. We need both readings in the temperature area. You can also get a basic reading on the BIOS setup, but I would prefer both readings and probably the most important the PROBE readings.

From my perspective, it does not sound like a bad motherboard or CPU at this point. Report back with findings and we will try to analyze the results.
 

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Discussion Starter #5 (Edited)
your wish is my command.. :tongue:

Asus probe - idle


Asus probe - stress (folding @ home)


psu label


yet again i ask.. is this a normal "broken" psu behavior ?
*p.s - I dont think thats a heat issue. The reboots even occour in stress settings of: cpu 41C, mb 25C (air conditioned room..), although it takes longer.. :rolleyes:
 

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Hi,

What video card are you running in this rig? Do you have a spare one you can slip in and try it? Also, what drivers for the video card?

Have you by the way tried Memtest86 to make sure you don't have any memory errors? There could be a slight error in memory that we need to rule out, so the memory test should help to rule that out.

This is actually the best utility for testing memory is memtest86.

http://www.majorgeeks.com/Memtest86_d1247.html

OR…….

http://oca.microsoft.com/en/windiag.asp

What we have to do is use the process of elimination to make sure that nothing along the way causes errors.
 

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Discussion Starter #7 (Edited)
problem solved.

after infinite(..) numbers of boots and errors, I came to the conclusion that its "something isnt right - not psu" thing.. the reboots interval just didnt make sense. I decided to run mem test. well.. what do you know.. the Asus p5p800 mobo does NOT support this memory.

since its a very new purchase, I went to the shop and showd them what I found. they run several test and afterwards said "sorry, here is you full refund"
:sayyes:

Now I'm back at DDR333.
what is the fastest DDR400 memory (not ecc/reg) that my mobo supports ? money is not an issue.

THANK YOU FOR YOUR SUPPORT weed o' tumble :wink:
 

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Hi,

Well, I was getting there after eliminating other factors that seemed more appropriate if you read my last post where I asked you to run memtest86. Anyhow, glad you got it going and hope it serves you well.

I would not advise that you OC as much as you did before. Otherwise, you will burn something out, so might want to be more reserved in your OC trials.

With the memory, if it were mine, I would find either the Mushkin that is on your list or Geil memory. Find the one with the fastest latency numbers and give it a go. I don't have the QVL at my fingertips, so you need to check the list before you jump this time. These new ones are pretty memory sensitive as you found out. Darn, the memory you had rocks, so too bad it is not on your list. If you could find one with latency numbers like that, you would be very pleased with it.

Have a geat day and let me know what you settle on for memory so I can put that in my memory bank when working with someone else.

Last, but not least, don't be a stranger on this forum. If you see something that you know about, jump right in and give someone a hand. Take care and see you around the forum.
 

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Discussion Starter #9
hey :) a little update.

system is folding now for the 8th hr straight. smooth as silk :sayyes:
I thought of buying (insted of the mushkin "black line") OCZ 1GB (2x512MB) EL DDR PC3200 DualChannel Platinum Rev 2 .

I read nothing but good reviews of it >.<
also, because it is not listed on the QVL, I sent a support mail to Ocz, asking them if it does support.

if anyone here knows for SURE it works - please say so.
 

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If I were in your shoes and not strapped for cash / I would ditch the generic PSU you can do it now / or wait until it burns up something else

I would grab an Enermax or Antec Tru Power of at least 550 watts / you lookin at around $100.00 for a good PSU (look on ebay) or newegg.com
the PSU is as critical to by quality as is the processor and memory ????


I am glad you figured your problem out !! Doesnt OCZ have a memory selector or compatabily selector on their website ?????? I know crucial and corsair do and they too are first class memory makers ?????

OCZ is a tuff one to beat though / excellent choice !!

dont be stranger . stop in often >>> you dont have to have problems to jump in and offer any experience you wish to share

Addendum: here is OCZ's memory configurator (its under support tab at top of web page )
http://configurator.ocztechnology.com/index.asp?classid=108


regards / joe
 
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