Testing failures beyond POST
Stu, in a prev life I did design verifications for cpu and sub-system designs for the corps that designed and manufactured the different technologies... we're talking about test equipment that runs $500k ~ $2M+ (USD) :eek: . Due to sheer complexity of the chip designs, self-test is (sometimes) designed into the circuit and more often than not even the manufacturers (e.g. mobo, controllers, sub-system designers, etc) are not even aware of this functionality... Obviously, consumers would definitely not have access or knowledge of this embed diagnostics/debug capability. Also, due to component cost and extreme complexity, most ""generic" test systems offer nothing more than basic continuity testers with some go-no-go functional test capability.
The PC's very basic POST (Power On Self-Test) is pretty much the consumer has for assistance in determining PC power-up failures. Truly, the next step is test equipment (VOM, oscilloscope, logic analyzer, etc), a schematic and a board layout. In a (sub) system design, without the all three you are pretty much left with board/component swapping & searching for needles in a hay-stack... This is why mfg's replace (vs repair) warranty systems. Who is willing to pay $1k+ worth of labor for a $25 part? If anyone has this need, they should contact me offline and I will be glad to provide a quote.
P2E
Quote:
Originally Posted by StuMegu
I'm still looking for a good CPU and Motherboard tester, I've tried some but nothing has really struck me as good. You can get hardware testers that plug in to the PCI slot and perform tests! Maybe this is the best way to go for someone testing regularly but no good for one off's.
The only other way I know is to find another motherboard or cpu that matches the faulty set and swap till you drop!
does anyone else have any good mobo/cpu testing programs?
Battling the no-response monitor
I have a more complicated version of the same problem. My roommate's computer is a 500MHz Celeron running windows xp, which it has done for a long time. Graphics card isn't the problem. I don't know his other stats.
My computer is a P4 2.4b w/ 512 on an msi 845E max. PSU is 350w enermax. Graphics card is an ati 9600. Hard drives are Western Digital Caviar (60gb master 120gb slave). Monitors: HP vs19c, Princeton 17"crt.
Roomie's comp went down this morning in the same way the other people in the thread's had. His computer sounds like it is firing up, and all the lights flash, but the monitor doesn't get signal. We tried two other monitors and two other graphics cards (a TI4200 and an ATI 9600) but neither changed the result. After trying a while we decided to back up his hard drive so that he could take his system in to get fixed.
I took his hard drive, unplugged my master drive and plugged his in, hoping to back his drive to my secondary which is also plugged in. Same thing--black screen, only my comp has the msi d-led error reporter plugged in which returned a status message. Of the four lights, all were red except the bottom left, which indicates the computer is "Initializing Keyboard Controller."
http://www.msicomputer.com/support/sup_tshoot.asp
It gets worse. The computer isn't booting, so I power it down and unplug his hard drive and plug mine back in without my secondary drive. The monitor comes on, and the computer begins post, but it hangs up on a screen that says there was a boot failure from previous device, and it asks for a floppy disk to boot from. (This is my normal boot drive.) I put in my windows disks and restarted it, but it was the same. I can't even get to the BIOS.
I thought maybe I should plug in my other drive to bring the system back to how it usually is, so I powered off and plugged it in. Bad choice--black screens every time with that same status message "Initialising Keyboard Controller."
I know that that status unit works (D-LED), as in the past I have gotten a few correctly diagnosed error reports from it.
Now there are two dead computers here and all they have in common is that both have touched this cursed hard drive. Very weird. :confused:
Another Monitor Problem...
Hello Peep's
Ive Got A Real Weird Question... It's a Similar Subject To What Everyone Else Has Had But Slightly Different...
I Went Out To Pc World And Bought A New Computer Case... Now Bearing In Mind My COmputer Was Working...
I Came Home And Took Everything Out Of My Pc And Changed All My Components Over To The New Pc Case... Now All Of A Sudden My Monitor Doesn't Work, It Stay's In Standby , ( Orange Light )
Im About To Test My Graphics Card In Another System That I Know Work's Is There Anything Else Worth Wile Testing Wile Im Testing My Graphics Card ( GeForce FX5200 8xAgp Ect Ect... )
Ive Tried Resetting The Cmos And Stuff...
But Still No Luck Can Anyone Help Me With This Situation... Im Going To Try The Leave The PC Alone For 2 Hours... Then Im Going to Try It Again...
Please Post Back Soon With A Solulation For My Problem... If Anybody Has One Of Course...
Many Thanks
Ramjam...