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==SOLVED Thx Guys==PC Crashed now wont boot, fans/led's will turn on..

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July 9, 2009 4:25:53 PM

==SOLVED Thx Guys==

Lots and lots of work here and on a few otehr foums thank you all for your help. The last Issue I was dealing with was After finally getting it to boot into BIOS (rebuilt on cardboard) it was crashing 15-45secs into start. This was an overheating problem, i just watched the temp from BIOS and soon as it hit 51+ it crashed, did this a few times 50c 51c 72c I took off the HSF and reapplyed thermal paste and screwed teh HSF down, I also droped a lil 2inch fan nexto the cpu. Works great, temp at boot is still a bit high but once computer gets to desktop it cools down odly enough






==SOLVED Thx Guys==





http://www.tomshardware.com/forum/261145-31-read-postin...

1: Yes read mobo manual
2: Yes CPU power is correct ( fans wouldn't turn on if CPU wasn't seated correct or didnt have power)
3:Yes, nothing wrong there
4: Videos card is in correctly
5: Yep both are up and fine on Vcard
6: Tryed swapping ram out and diff slots, no errors there
7: Yep fully in
8: No, no plastic guard just the metal latch/case thing
9: No its a clean cooler application
10: Using a Big Typhoon for cpu fan, and asus's mobo fanless built in so no not plugged in
11: Cooler is clean and seated correctly
12: No screws/nuts flying around :p 
13: No static
14: No sys speaker that i can tell =-(
15: Yep case is plugged in correct
16: PSU is fine
17: Yep supported CPU
18: Yes reset CMOS, did nothing
19: Na just the PCI-E video card

------------------------------------------------
SYSTEM

MOBO: ASUS P5WD2-E
VCard: Radeon HD 3870
SCard: SBlaster Audiy-2
RAM: Corsair XMS2 1gb (x2)
HD: Maxtor 100gb
CPU: PentD 3.0mhz duel core
PSU: 500w Ultra XC
-------------------------------------------------

I've unplugged and reset everything on mobo, checked for dust, screws/blots or anything in the way.

Heres what happened: Was playing a game PC hard crashed, rebooted, updates isntalled, updates needed a restart so it began shutting down, when shutting down it crashed.

It was late so i just unplugged the PSU and went to sleep, got up this morning tried to boot and the Fans come on, the LED on mobo comes on bu the monitor doesn't come on, and the HD doesn't sound like its spinning.

Monitor light just blinks, doesn't give the VideoCard not plugged in error, or the error when its not plugged into a pc just blank like in a sleep mode.

Tried monitor on another PC works fine, tried diff HD and still wont boot, reconnected all cords, reconnected the videocard, hd, cpu, ram.....

Read a bunch of posts here and online, most look like its systems booting up first time ever, this was a working system last night....


Any ideas??????
July 9, 2009 4:33:11 PM

My first guess is that your PSU tanked. You have another one you can test with?
July 9, 2009 4:38:12 PM

AMDThunder said:
My first guess is that your PSU tanked. You have another one you can test with?



Hmm I don't think i could be the PSU, as it powers the mobo( green LED lights up) , and all the fans get power.
Related resources
July 9, 2009 5:02:32 PM

A bad PSU will still get you power. I had something similar happen a while back. It didn't crash, but just wouldn't power on after I moved it. had the same type problem you have. Lights come on, fans spin up, but not much more. I assumed a short or something, but nada. Replaced mobo and cpu, tried a different HDD, etc. Only thing I couldn't test was the PSU because I didn't have a spare. Returned the new mobo/cpu, upgraded that, got a new PSU and vid card. Worked like a champ
July 9, 2009 5:11:11 PM

AMDThunder said:
A bad PSU will still get you power. I had something similar happen a while back. It didn't crash, but just wouldn't power on after I moved it. had the same type problem you have. Lights come on, fans spin up, but not much more. I assumed a short or something, but nada. Replaced mobo and cpu, tried a different HDD, etc. Only thing I couldn't test was the PSU because I didn't have a spare. Returned the new mobo/cpu, upgraded that, got a new PSU and vid card. Worked like a champ


You might be onto something..

took out everything but 1 ram chip, video card, cpu, and cpu fan and it kinda booted

I was testing the RAM I have 2 chips both 1gb Corsairs, MOBO has 4 ram slots

Chip-A

Slot1: Wont boot
Slot2: will boot but a few secs in mouse loses power, and keyboard lights(for like numlock) wont stay on when presses just flash once


the only other PSU i have is an old 300w =-(, i dont think it would run this system


also if its PSU whats up with the ram, and if not PSU whats up with mouse/keyboard lol



July 9, 2009 5:12:36 PM

Yeah Mobo requires 400wats min =-(
July 9, 2009 5:24:55 PM

Well, hopefully not, but if your PSU did tank, it could have taken other parts with it. When you see other posters on here advising not to skimp on a PSU, they ain't lyin'.

Unless that 300W PSU had a power connector for your vid card, it's not gonna be much help. Underpowered is better than bad though, at least for troubleshooting. Might try it and see if it sounds like your HDD is spinning up, if it wasn't previously.
July 9, 2009 5:32:04 PM

AMDThunder said:
Well, hopefully not, but if your PSU did tank, it could have taken other parts with it. When you see other posters on here advising not to skimp on a PSU, they ain't lyin'.

Unless that 300W PSU had a power connector for your vid card, it's not gonna be much help. Underpowered is better than bad though, at least for troubleshooting. Might try it and see if it sounds like your HDD is spinning up, if it wasn't previously.


my 500w psu : http://www.ultraproducts.com/product_details.php?cPath=...

It wont mess with my mobo using a 300w PSU ?
mobo asks for 400w+
videocard asks for 450w+

I just tryed to boot with CPU, CPU Fan, 1Stick Ram... no HD sound card video card etc... and it kept the laser mouse light up.

Could i use the 300W PSU for like: HD, Fans, and teh 500w for MOBO/CPU/Videocard???
a c 122 B Homebuilt system
July 9, 2009 5:45:13 PM

shadowknight86 said:
Hmm I don't think i could be the PSU, as it powers the mobo( green LED lights up) , and all the fans get power.

That really doesn't mean that much. In addition to the large main section of the PSU that provides all the operating power, a computer power supply has a small (10 to 15 watts), independent section called the standby power supply. That is what powers the motherboard LED even when the PSU is turned off.

Fans running means the PSU can provide 12 volts at some minimum power level.

And even hen, you can have all the power outputs present but if you do not have the "PowerOK" signal from the PSU to the motherboard (main power connector, grey wire), your CPU will not come out of hardware reset.

I also suspect that your PSU has died. You should replace it with a good brand.
July 9, 2009 5:49:13 PM

By died what does that mean really, like has it dropped down in wattage to like 400 or something, or just not stable?

Is there anyway i power the videocard/fans/hd from a 300w and the mobo/cpu from the 500w, or is the 500w just nor stable?

Also would i be OK testing the mobo/cpu/videocard and 1 ram stick with my 300w cps to see if i can get into bios???
a b B Homebuilt system
July 9, 2009 5:53:38 PM

With a 20-pin mobo connector, that is one ancient PSU, and quite possibly one of the models that gave Ultra a bad name some years ago. Who knows what voltages it is now providing, or how bizarre (and destructive) the waveforms may be. If the mobo is so old that it only has a 20-pin connector also, it is quite possible that capacitor aging has done it in. A Google search on "Failed capacitors" will be enlightening. Either the mobo or the PSU could have experienced this, the latter quite possibly taking the former with it into Death.
July 9, 2009 6:19:29 PM

mobo has 24pin

Is there anyway it could be something other then a power problem and any tests i can do???

a b B Homebuilt system
July 9, 2009 6:41:45 PM

If it IS a power problem, continued testing using the bad PSU may damage or destroy anything else. For example, if a filter capacitor failed, the PSU could be passing a hideous waveform, and/or a nasty spike each time it is switched on.
You can get an Antec Earthwatts 380 for $45.
July 9, 2009 7:08:36 PM

Also is there anything else you guys can think of that it might be??? Maby its something small and silly that I missed?!... err and cheap lol
July 9, 2009 7:15:44 PM

tested with an old dells PSU but it was only 250w sooo not really supprised that it didnt boot, it just spun the fans and turned led's on =-(
July 9, 2009 8:03:34 PM

Ok now this is odd mobo has 4 ram slots, 2x black/yellow, the CPU is closest to #1, then i try the RAMchips just one at a time slots 1,2,4 do nothing, but when i put either ram chip in slot 3 it makes it so the HD spinns when the tower gets power, with ram in! HD will also spinn s there is no ram in at all, but will NOT spin if theres a ram chip in 1-2-4... IDK if this means anything but...

4 3 2 1
(B) (Y) (B) (Y)
(B) (Y) (B) (Y)
(B) (Y) (B) (Y)
(B) (Y) (B) (Y)
(B) (Y) (B) (Y)
(B) (Y) (B) (Y)
(B) (Y) (B) (Y)

July 9, 2009 8:24:47 PM

Possibly your mobo died with the PSU. It's really tough to tell without a good PSU and/or mobo to test it.

Not sure that PSU you tested with has enough power. I would still at least expect to get post error beeps with no RAM. Are you sure that speaker works?
July 9, 2009 8:29:58 PM

UGHHH just got this system on Sat =-(

any other tests i can do, sadly the only other rig i have atm is a Dell4550 with 250w PSu... soo idk how much testing i can do lol
a b B Homebuilt system
July 9, 2009 8:30:05 PM

That particular Xclio is an old, inefficient design. Note the little red voltage switch. I would not buy one.
The 3870 is sufficiently old that buying another one for Crossfire doesn't make sense, not when you can get a 4850 for around $100. Even that may not make sense, since I believe your CPU will bottleneck it.
The symptoms you describe are not promising. It sounds more and more as though enough other parts have been damaged (e.g. your mobo) that a completely new build is in order. Post a budget, and what you need/want the PC to be able to do [well], and I'm sure you'll get lots of good suggestions.
a b B Homebuilt system
July 9, 2009 8:43:48 PM

You say you just got this system... where? Is it under warranty? Will any warranty be voided because you opened the case?
July 9, 2009 8:46:05 PM

Bought it used from a friend. He was just recently using the PSU before an upgrade himself assures me it was working fine..

Hell everything WAS working fine last night...
a b B Homebuilt system
July 9, 2009 9:59:26 PM

Unfortunately, possibly due to age, it probably stressed out and croaked.
July 9, 2009 10:03:00 PM

It's jsut crazy that it would still power the LEd's fans, HD etc... but somehow not provide enough for it to boot up... =-(

Ugh still trying to find a way to be 100% positive before i got buy a new part then find out it was my mobo or ram or something lol
a b B Homebuilt system
July 9, 2009 10:18:47 PM

You should replace that aging, low-quality PSU anyway, but I suspect you will need to replace other parts as well, that it took with it into the Abyss. This is not to say your friend ripped you off; it may well have been working fine, but just gave out. Maybe his household AC power measures 123V, and yours is only 110V, and the little bit of extra work pushed it over the edge. There's really no way to tell; at this point however there is no rational need to ever try to turn it on again. You could always see if Oklahoma Wolf at www.jonnyguru.com is willing to do a post-mortem on it, just for grins.
July 9, 2009 10:25:49 PM

This is more a motherboard failure. I know it since I got many with the same damn board. My old 965P-DS3 died on me 3 time in less than 16 months.

After 2 RMA, I was sick enough to buy another motherboard from another manufacturer. Never got a problem after that.

The problems were similar, turning on and turning off, turning on and turning off. It was impossible to get the BIOS to post.

If you plan on changing your motherboard, you should take the occasion to maybe upgrading. For the cost of your motherboard + 200$ you get a whole new PC.
July 9, 2009 10:31:08 PM

Onus said:
You should replace that aging, low-quality PSU anyway, but I suspect you will need to replace other parts as well, that it took with it into the Abyss. This is not to say your friend ripped you off; it may well have been working fine, but just gave out. Maybe his household AC power measures 123V, and yours is only 110V, and the little bit of extra work pushed it over the edge. There's really no way to tell; at this point however there is no rational need to ever try to turn it on again. You could always see if Oklahoma Wolf at www.jonnyguru.com is willing to do a post-mortem on it, just for grins.


I don't think his friend has lied to him. The most intuitive answer is that the problem is elsewhere. The motherboard failing make more sense. That 2 power supply have the same problem is quite unlikely.

Also, a 250 W power supply is way enough for booting even a phenom II with a 38XX.
July 9, 2009 10:36:12 PM

Snap so u think the mobo has a problem.. that would explain teh whole ram in slot 3 thing i guess....... mobos anyway to diagnoss or fix.. or are they just broken=broken???!!!
July 9, 2009 11:09:58 PM

All right its not the PSU, i booted up my dell just fine with it no issues.

I doubt its the CPU because if the CPU is dead or not installed the circuit to the power wont switch on and power the mobo.

Checking out the MOBO right now, so far its clean no burn, scratches dust/dirt etc.... the only weird thing is that whoel ram in 3rd slot.... idk bout that one
July 9, 2009 11:19:34 PM

All right for the like 3rd time im taking ti all apart this time totally and onto some cardboard!

will just but putting videocard, keyboard, cpu and 1stick of ram
July 10, 2009 12:38:55 AM

Ok... so put it all together out of case it booted up!!

Put it back together in the case and it BOOTS UP!!! But then 15-30 seconds later it freezes, usualy when its loading or in bios, once i got to my vista desktop.

What now???!!!!!
July 10, 2009 1:39:01 AM

Thanks for all the help this issue has been solved!! See 1st post.
!