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Discussion Starter · #1 ·
Okay, I apologize, but this may very well be posted in the wrong area, but I post it here sheerly because I have no idea what is wrong with my computer, all I DO know, is that it runs on vista.

I received this computer two days ago, new, though it's custom built. I was away today, and when I came home, my computer was giving me the option of reverting to the last good configuration, among other selections. I chose to do so, and it told me it could not, and that I should put the windows vista installation disk in, restart the computer, and select "repair my computer." I eagerly followed its commands, but upon restarting the computer, the monitor did not receive any signal, (the light went yellow, as if the computer was off)
the computer's lights function, the fans turn on, and the disk tray will open. at first I thought the graphics card was not functioning, but my computer runs on two of the 9300 gt series cards, and on hooking up the monitor to the second card, the same result.

The keyboard is also lacking functionality, it seems responsive for a moment, (the lights flash) but, and here is where all logic defies me, the only way I can detect responsiveness from my keyboard is the light that comes on when keys such as num lock, or caps lock are pressed, I thought at first that it was only responsive for a few moments, but now it seems that after clicking 6 keys, the keyboard becomes unresponsive.

Please, help me out with this if you can, I'll happily accept any and all suggestions, and I'll give you any information I can, thanks in advance.
 

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Discussion Starter · #3 ·
Hi, thanks for the fast response

PS/2,
but if you would like, I can try for a response from my USB keyboard.

and no, I can't boot in safe mode, there is absolutely no response from my monitor,
whereas when its disconnected, it tells me, it's just acting as if the computer is turned off.
 

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what are you running
video card
cpu
m/board
ram
power supply
brand
wattage

check the listings in the bios for voltages and temperatures and post them


check pnp is enabled in the bios and keyboard on boot
 

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Discussion Starter · #5 ·
Thanks again for the responses.

sorry, contradictory to my post, the video cards, two 9500 GT series,
there are 4 GB of RAM, and sorry again, at the moment, I don't have access to
all of my specs and information, I have them saved to my flash drive, and I'll be able
to put them up tomorrow,

I can't get to the BIOS, there is absolutely NO signal going to the monitor, the computer boots, fans run, disk tray will open, but the monitor, and a second monitor I've tried, go into power save mode. Both of the monitors work with the computer I'm using right now.
 

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Discussion Starter · #7 ·
well, okay, I'll try to have it handled, but if it means anything at this point.


my motherboard is by MSI, its a P7N SLI Platinum,
the power supply is a logisys, 550W 12CM LED Acrylic Power Supply
my processor is an Intel Core 2 Quad Processor

thanks for the help either way, if there are any other options, instead of
sending it back, please let me know.
 

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Hi,
Your logisys 550W 12CM LED Acrylic Power Supply is barley enough to run one 9500GT video card let alone two.

I believe your PSU (logisys 550W) is the issue here. It is way under powered to run in SLI Mode. You may have blown the PSU. This PSU is not known for its quality (IMO)

You will need to get a quality PSU in the range of 750w-900w minimum for SLI mode that produces 35Amps on the 12V rail.
Your logisys 550W (I believe) only produces maybe 25Amps on the 12V rail. Just enough to run one 9500GT.

Seeing I do not know your complete specs I can only guess.
This link may help you:
http://www.techsupportforum.com/f210/power-supply-information-and-selection-192217.html
 

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Discussion Starter · #9 ·
Thanks much BCCOMP, I just wanted to confirm that as my issue, and you have done so for me.

I'll talk to the seller about it and see if anything can be done, if nothing else, I Can purchase another power supply.

is there any chance that its affected any of my parts?

and, less importantly, but its just sparking my curiosity, why did it function fine for the first two days?

either way, thanks to everyone for their insight.
It's incredibly appreciated.
 

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Hi chkniz2good,

There maybe a chance that if the PSU did blow, it may have taken other components with it (Motherboard, CPU, Video Cards , etc.).
It does provide some protection though:
http://www.elogisys.com/viewsku.asp?SKUID=PS550AC12&DID=POWERSUPPLY

Over Voltage Protection
Short Circuit Protection
Built -in EMI Filter and Anti-Interference Electronic Resistor
This really does not mean much to me as this is a Low Quality PSU (IMO).

This power supply has a very unstable 12V rail:
http://www.gideontech.com/content/articles/373/1

I do know it is way under powerd to run 2 9500GT cards (as you would need atleast 35Amps on the 12V line), let alone one 9500GT. There should be a tag on the PSU itself that notes the amps and voltages. I believe that this PSU may only produce 25Amps (if that) on the 12V line. As stated before good for one 9500GT, not enough for two though.

As Dai stated if this is a new computer, I would take it back to whom you purchased it from. You maybe violating the warranty if you experiment with this yourself.

Bill
 

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Discussion Starter · #11 ·
Thanks again Bill for all your help on this topic,
your advice and information has been incredibly helpful.

I'll definitely consider returning it a strong possibility.
Though I may just purchase a new power supply.

I am in all honesty pretty confident that my components weren't damaged


Anyways, once again, thanks to everyone who gave input into my issue

Bruce
 

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Discussion Starter · #13 ·
Haha, well Its a bit later, but I just got the money
to buy myself a power supply.
I'm getting one that puts out a little more than I need,
because I don't really want to run any risks here.

and I'll have a bit of room to improve in general.

at this point of time, this is looking pretty appealing

http://www.newegg.com/Product/Product.aspx?Item=N82E16817121037

tell me if you see any problems, or if it's a bad deal,
but it puts out 35 A on the 12V rail like you had said.

so I think it will be fine.


Bruce
 

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with multiple rails you had them together and deduct an average of 25% to get the actual output

it requires a 15amp power outlet to run it and although i always recommend a larger psu than needed
in this case a corsair 650 or even a 750 is more than enough and half the price
unless you plan on the latest high end dual cards in the near future
 

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Discussion Starter · #15 ·
Well, yes, I do intend on upgrading at some point of time.
so unless you strongly disagree with me buying this, I probably will,
I may settle with the 900 though.

I won't be ordering until later tonight, so please feel free to add anything else.


thanks a lot for helping out.

Bruce
 

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Hi Bruce
I agree with dai.
Although this appears to be a decent PSU I have never heard of it.
It also appears to be over kill, but as you stated you may upgrade.

A Corsair 650-750 would be more than enough:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006

It is a lot cheaper and of Very Good Quality, but in the long run it is your money and your decision.

Bill
 

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Discussion Starter · #17 ·
Okay, hello again,
both Bill and Dai,

I ended up purchasing the Corsair 850,
as it was not much more than the 750,
and I thought it was worth the extra 15$

I just installed it, and I seem to be experiencing
another issue. I don't see any issues with the isntallation of my
PSU, but on startup, the computer freezes after only a moment,
If I hold delete to get to bios, for example,
It only goes as far as a black screen with the following text,



"A7380NMS V1.2 071108

Intel (R) Core (tm)2 Quad CPU Q8200 @ 2.33GH , SPEED: 33x7=2331 Mhz

DRAM Frequency for DDR2 800 (Single-Channel)
Initializing USB Controllers .. Done.
2046MB OK"


At this point the computer becomes unresponsive

If I start it normally, the usual initial screen appears saying
"MSI Motherboard Platinum Edition"
with a nice little graphic in the background,

and isn't responsive past this point


Please help me if you can, I just wonder if this means that I did something wrong, on installation. Though I'm pretty sure at least most of what I typed was irrelevant, I tried to give as much information as I could.

Any advice or input would be greatly appreciated, thank you.
 

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cmos reset
turn the computer off
remove the power lead from the back
take the side off
remove the cmos battery
move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2
reinsert the battery
put the side on
replug in the power lead
boot the computer

there can be 2 solder points you touch with a screwdriver
2 pins you touch with a screwdriver or use a jumper
a cmos clear switch or button
there will be a diagram and instructions in your manual
 

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Discussion Starter · #19 ·
I did as you said,
my model has the clear button.
but now it appears that I'm back at
square one, just with a more
expensive PSU,
the computer turns on,
the monitor gets no signal....
ahhhhh
I'm so incredibly frustrated by this..

any more ideas??
 
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