New problem.

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Colt45ws

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No, not with my Athlon machine, with my trusty P4 machine..
Its gone wacko. I installed a 9800 GT a couple days ago. Games would crash within a minute. My power supply was borderline on the specs so I decided to pull the 750W from the POS. Worked fine, for about an hour... Then it started crashing they got more and more common with a shorter span between crashes it seemed. Somewhere I updated the chipset drivers.. Seemed to help a little initally, but it could have been a coincidence. Now it wont even load. Then the BSODs started. I disabled the automatic restart and got a STOP 0x24, a couple 0x8e, and 2 or 3 0x4e. Most places I found seem to point to hardware problems. I put my 8500GT back in and I ran memtest86+ for 16 hours and got what I would term a "soft" error. Only one. I pulled some timing and have not been able to reproduce. I downloaded windows debugger from microsoft and went through all the dump files, could not trace it, it always ends up pointing the finger at the kernel, win32k.sys or something ntfs.sys... bleh... probably is hardware, Im writing this in linux and firefox just exited on me..just like in winders.. I dont get why I cant figure out the problem component.. I eliminated the new video card, tested the ram 2 or 3 times, I even visually checked the caps to see if I blew one up with that video card...
 
If you recycle old PSUs for the job, chances are, the PSU is at fault (DC output power too "dirty" as capacitors dried up).

Try getting a new one and don't go cheep for I have had clients who fell for those 20 bux case w/ PSU and the mobo was literally cooked by the inferior cheep chinese PSU in 1 yr. Ended up requiring a recap of the mobo and a brand name PSU.

I go for brands (mostly OEMs these days) such as Seventeam, SeaSonic, InWin/PowerMan.

Q.
 
Never, ever cheap out on a PS. People just see the little gray box with slots and think they're all the same, and not that important. NOT SO. Everything going on in the box starts with that waveform. A solid PS can make for a MUCH more stable system under all circumstances. A bad one can damage other components. It's just as important as the CPU, or video, or HDDs. It should be budgeted for accordingly.

So many probs are PS related at the outset, but are never diagnosed in time. Usually a dirty or overworked PSU starts going south. Then the MB starts goes flaky from the bad power and all sorts of issues develop thereafter. HDD, video, memory, everything.

Seasonic makes a very good one; running on one right now. Even better is PCP&C. I've NEVER had one of the latter fail on me, and I've now got a couple going on ten years service. The very best ones can last through a couple of rebuilds.

Spend the dough and budget a little less on the CPU if need be.
 
Originally Posted By: Quest
If you recycle old PSUs for the job, chances are, the PSU is at fault (DC output power too "dirty" as capacitors dried up).

Try getting a new one and don't go cheep for I have had clients who fell for those 20 bux case w/ PSU and the mobo was literally cooked by the inferior cheep chinese PSU in 1 yr. Ended up requiring a recap of the mobo and a brand name PSU.

I go for brands (mostly OEMs these days) such as Seventeam, SeaSonic, InWin/PowerMan.

Q.


I've made some decent money over the years recapping boards/replacing boards and replacing PSU's in "Jed's Home Computers" that come from retail shops where they use offshore junk cases that come with "The Deere" and the like PSU's that are made of tin, weigh 2 ounces and somehow are "rated" for 450W.

These are the case/PSU combos that, like you said, cost 20 bucks.

And then a year later, the PSU is cooked, or the PSU AND board are cooked.... and of course the system is out of warranty.

SPI/FSP
Antec
Thermaltake
Enermax

Have all been good to me. I've killed a couple TT ones over the years and a high-end FSP in one of my own rigs.

It is amazing the lack of emphasis that is put on using a GOOD power supply in consumer computer sales. A tragedy really.
 
Enermax is a long time player in PSUs, and generally makes a good unit. Remember their 300w units when 300w was a mountain.

I've had a few problems with Antecs. Too much emphasis on fans and other toys. Opened one up; decent build, but nothing great. Too much glitz for me.

TT is a newer player, having cut their teeth on cooling devices. I've not had one of them, but hear they're ok.

The weight test is actually a good first screening. Better filtering cap networks and good sinking requires weight. The "400w" freebies they pack with the $50 cases feel like they'd float in a bucket of water.

Efficiency is a nice spec, having gained more importance in recent years as a thermal control, not necessarily an energy saving thing. A system that draws 300+ watts under mild load is hardly a green box, and a high efficiency PSU won't change that.

I'd like to eventually try a fanless PSU as part of a quiet system, but too many tradeoffs still.
 
I've got a fanless PSU sitting in a case in the hall right now actually. The system is being moved into a different case. PSU is made by Silverstar.

I have a TT 680W PSU running my Core2Quad OC'd to 3.48Ghz, 8GB of RAM and 5 hard drive, as well as an 8800GTS 512. It does an admirable job, and this is the 2nd board/chip/RAM/Vid combo that it's fed in this case.

Only gripe is that they are more expensive than FSP/SPI.

-Chris
 
I did a cursory visual inspection, I didnt see anything. BUT,
Code:


Test 7, 5300 Lucas-Lehmer iterations of M13369345 using 768K FFT length.

FATAL ERROR: Rounding was 0.5, expected less than 0.4

Hardware failure detected, consult stress.txt file.

Torture Test ran 1 hours, 20 minutes - 1 errors, 0 warnings.

The CPU is not overheating, It runs about 40-50C. Its not even overclocked because the board was too picky for me to get more than 50-100MHz so I didnt bother..
 
Originally Posted By: OVERK1LL
Originally Posted By: Quest
If you recycle old PSUs for the job, chances are, the PSU is at fault (DC output power too "dirty" as capacitors dried up).

Try getting a new one and don't go cheep for I have had clients who fell for those 20 bux case w/ PSU and the mobo was literally cooked by the inferior cheep chinese PSU in 1 yr. Ended up requiring a recap of the mobo and a brand name PSU.

I go for brands (mostly OEMs these days) such as Seventeam, SeaSonic, InWin/PowerMan.

Q.


I've made some decent money over the years recapping boards/replacing boards and replacing PSU's in "Jed's Home Computers" that come from retail shops where they use offshore junk cases that come with "The Deere" and the like PSU's that are made of tin, weigh 2 ounces and somehow are "rated" for 450W.

These are the case/PSU combos that, like you said, cost 20 bucks.

And then a year later, the PSU is cooked, or the PSU AND board are cooked.... and of course the system is out of warranty.

SPI/FSP
Antec
Thermaltake
Enermax

Have all been good to me. I've killed a couple TT ones over the years and a high-end FSP in one of my own rigs.

It is amazing the lack of emphasis that is put on using a GOOD power supply in consumer computer sales. A tragedy really.

here the worst one i have found yet.
i too recap a lot of psu and motherboards.
the problem the o.p describes sounds like caps or power.
http://www.badcaps.net/forum/showthread.php?t=6341
 
Well, it happened with two different power supplies, so I will pull some components to take a more carefull look at the caps.
Ive seen caps blow before, at school we had 5 or so no name P4 machines, the best ones as they had like a 2.8 P4 and the rest of the comps had celerys. Came back from summer and all 5 were dead, blown caps. Same ones on each board, right next to the northbridge. :/ I also blew the caps out on my old Athlon XP machine, the ones feeding the CPU. Then shortly there after the Antec PSU that was powering that machine mysteriously died. I didnt dissect that one though..
 
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Well, they all look good, but I dont have any equipment to actually test them, just visual..
I know now it has KZG by the CPU and OST everywhere else.
Oh, and a single Sanyo on my MSI nVidia 8500 GT. :P
 
Originally Posted By: Onmo'Eegusee
I did a cursory visual inspection, I didnt see anything. BUT,
Code:


Test 7, 5300 Lucas-Lehmer iterations of M13369345 using 768K FFT length.

FATAL ERROR: Rounding was 0.5, expected less than 0.4

Hardware failure detected, consult stress.txt file.

Torture Test ran 1 hours, 20 minutes - 1 errors, 0 warnings.

The CPU is not overheating, It runs about 40-50C. Its not even overclocked because the board was too picky for me to get more than 50-100MHz so I didnt bother..


For fun, go into the BIOS and bump the CPU voltage up a touch. Re-run Prime.
 
Hmm, interesting.

Lawl, it wont let me. I can change FSB, PCIE freq, and DDR2 voltage. No CPU adjustment to be had. Must be why I could not O/C.. :P
 
Last edited by a moderator:
It's gotta be in there somewhere. But you may have to switch it to "manual".

When running prime to verify stability in an OC voltage plays a pivotal role.

There are stone-stock computers that will not pass prime.
 
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