PC Shutting Fans Off, PC melting?

[WazMeister]

Hey all

As my other post to my upgrade, I feel my PC is not running as it should do.

But now I have other problems... even worse!


Since i've put my graphics card in, if I goto windows, start, restart the pc restarts but it don't go to post in its restart.
Just a black screen, as if the PC struggles to do it.

So I power down, turn off power to PSU.
Power it all back up and it loads again to windows xp fine...........?!?!?
Sometimes it report no keyboard when it is in .. so again a power down and turn off power to boot it!

Very strange, happens all time if i try restart PC it just goes to black screen aftr rebooting windows.

Another thing is last night I was playing games, and I heard a shutdown noise as if the PC turned off.

It turned out every single thing turned off apart from the PC/PSU.
It was still on running with the power supply... but the CPU fan went off, GFX fan and case fans.

I panicked and turned it off.

I'm posting this befopre work and its all runnig now, but I presume it still have issues tonight.

Is it my PSU?
It's since i installed the GFX card x1950 pro 512mb

It says min 400watt PSU.
Mines 500... I not sure if its got a 30a in a 12V though, how can I tell? Does it really matter and give effects off like this?

It's a new PSU! infact its this one-

http://www.overclockers.co.uk/showproduct.php?prodid=CA-089-AN&groupid=701&catid=123&subcat=

Is this problem to PSU?
Surely 500watt PSU is alot more power than needed for my old poo spec
xp3000
2gig ram
x1950 pro 512mb

[charlesr]

Are the connectors for the fans plugged in properly? (clutches at straws)

[smouty]

The x1950 cards are very picky about PSUs.
I would check out if there are other reports of problem with your combo of PSU and GPU.

[WazMeister]

How can i tell if a PSu has 30amps on 12volt?

Everytime i ring someone they havent a clue, it never says in spec online either.

is there a way on box if I goto store that insists its a 30amp on 12 volt rail?

As everyone says its needed for a x1950pro

Is my current PSU a 30amp on 12 volt rail?

How can i tell?

Is it all the molex plugs or just a speical one?

[Ian(not Ian)]

Things like this are so hard to quantify, but in general....

As your x1950 is booting ok, then power being supplied is likely ok as the card's BIOS will pipe up if it's not 'appy.

Try a google for forum post re your M/B's BIOS settings for VGA apetures etc. and x1950 probs.

Check M/B manf website for later BIOS updates and why they did it. D/L BIOS latest update and flash that mutha. You'll need a DOS/WIN98 boot-disk (floppy)

Have you still got your old 400W PSU lying around.
If so give it a try. The 400W should be enough for the time being.

ATI Radeon drivers. I assume you have 8.1.summat (the latest installed) Try un-install and install a previous version from ATI's website....7.8.summat or thereabouts.

Re-install DX9c from ol' MS

Best to try things one at a time, doing the lot in one go whilst it may fix the problem won't tell you what the problem was in the first place.

[WazMeister]

I try older drivers

AGP apture is 256, read it was set best for this kinda card.

Also got latest bios, did this last night.


What confuses me is they say the gfx card requires 30amps.
Now some PSu have 1 12v at 30 amps
Others have 2 12vs 12v1 and 12v2

Now how do we work amps out?

I read you add the totaly ampage of each volt = total ampages
So my PSU is 18amp 12v1 and 18 amps 12v2 = 36 AMPS

So am I presuming because I only have 1 molex pluged in my gfx card, using the Y adaptor... which goes in both power plugs on gfx card its only getting 18amps?

And could this lead to power problems where its draining too much from 1 power cord?

So if I put 2 main plugs from PSU into each plug on gfx card would this equal the right 30 amps it needs and maybe resolve my power problems?

Or am I talking total whack now and gone crazy?

Maybe case I only have 1 in its trying to take more than the 1 molex plug can handle thus taking power from everything else?

So if I put 2 in, it gets the right amount and then the rest will get theri fair share?

LOL I think I've gone crazy?!?!?!?!


What is 12v1 and 12v1?
Are the PSU molex plugs labled which is which? or is it the same for all the plugs, all 12v at 18 amps?

So confusing, how can I tell!!!!!!!!!!!

[Ian(not Ian)]

Molex from PSU to GFX, with a wee adaptor to fit the GFX card's power input? which are 4 pins square fitting iirc.
Hard to say since the PSUs I've bought in recent years have an actual 4pin sq output specifically for GFX cards.

Still not convinced on the GFX card being the rascal here. Would really be nice if someone with AMD CPU /MB experience could chip in their 2 bob.

500W is more than enough btw. Atm I have 550W and 2 x1950XT pro in SLI and no real problems other than the usual bloody Windows rubbish.

[briareos_kerensky]

2 x1950XT pro in SLI

Crossfire! AMD is soooo going to sue you

BTW, there are different versions of the X1950 AGP: the Sapphire versione uses two HDD molex for power, while the Powercolor version uses a 3x2 molex, the same one used for PCI-E cards.

I had a Sapphire X1950 powered by a Tagan 530W PSU, the other specs where equal to Waz's PC; I also had (no, wait, have) 4 HDDs and 2 optical units, so the 12v line was quite crowded, but the system had no problems for three months; suddently I wasn't able to see any movie (being in WMV, DivX, XviD, MKV, Real media...whatever)-tried reinstalling codecs, players, drivers,change multimonitor setup: no solution; problems got worse with the system locking up when transfering datas from HDD to HDD. I opened the case, check if all cables were tight and at the next power on the system wouldn't boot...fans spinning but no video signal or HDD spinning.
Replaced the X1950 with the old 9800XT and the system was up and running again.
I don't know if the X1950 was defective or the 12v load was too much for the PSU (but it's still perfectly, so I guess it's not that), but in the end I had to replace the X1950 with my old card. A wild guess I can make is that old nForce2 motheboards don't really like such a power-hungry board and/or the PCI-E to AGP translator chip on the X1950 isn't exactly happy to deal with some AGP boards.

[$till LegendaryU2K]

Did you disable your onboard video card first?

Also, funny i am using windows98SE, with a 90Watts PSU and i have use on this computer a Diamond Stealth 700064MB and 9250 256B card, to a Geforce FX 5200, to a Geforce FX 5500 and now i am using a BFG Geforce 6200 256MB OC PCI card and everything works fine. The Geforce card requires a 250 or more PSU, but using 90watts i have no problems, which is why the data is not of truth.

Maybe you have to disable your onboard video first, or its possible the card is damage, who knows.

[briareos_kerensky]

D but using 90watts i have no problems, which is why the data is not of truth.

What kind of system are you running? The 6200 is a low-end card, but unless you're running a mini-ATX/ITX/mini-ITX PC you got your wattage wrong...an idling P4 system with a single HDD should consume around 150w alone.

[WazMeister]

I got system to boot and all seems ok.

But going in ETQW playing for about 10 mins...... i get a black screen.

GOes black, I hear game running in background fine and stuff......

And its not frozen.........But only waqy out is to power down.


hmmm
Random

Ive used ATI TOOLS to up the Fan to 100%, see what happens... I'll post results.


Should I be using the DVI port on far left? Or one on right?

Their are 2? I presume it dont make a diffrence?

[MyDogSkip]

Sorry to hijak, but im getting a very similar problem with the same card with all of my games. I can play them sometimes up to 2 hours and then suddenly the screen goes blank, the sound goes off and i cant do anything apart from turning the PC off from the button on the front!

If you find out what it is, im very interested!