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Nothing on screen after power on

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Name: mdl100
Date: September 6, 2007 at 06:35:46 Pacific
OS: XP
CPU/Ram: 2Gb
Product: Asus
Comment:

Hi

I have recently upgraded the motherboard, processor and memory in my pc. It powers on fine but nothing is appearing on the screen not even the bios information.
I have tried the graphics card on another pc and it is working fine.
Anyone have any ideas as to what this could be?


Details are
Graphics Card: Radeon 9250
Processor: AMD Athlon 64 X2 6000+ 3.0GHz Socket AM2 2MB
Motherboard: Asus M2N32-SLI Deluxe, nForce 590 SLI, Socket-AM2, DDR2,2xGbLAN,ATX, 2xPCI-Ex16
Memory: DDR2 PC6400 2048MB

Thanks



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Response Number 1
Name: mountain
Date: September 6, 2007 at 11:46:38 Pacific
Reply:

that sounds like a bent pin on the cpu


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Response Number 2
Name: Tubesandwires
Date: September 6, 2007 at 12:12:05 Pacific
Reply:

Assuming you installed everything correctly, including installing the ram in the right slots if applicable, a common mistake people make with a new build is to install ram that isn't compatible with the mboard - in the worst cases your mboard will not boot fully and may not even beep.
Not all ram is compatible with a particular mboard/it's chipset. You can look up which modules will work in your mboard for sure on ram manufacturer's and major ram distributor's web sites by using your mboard make and model. If the ram module's ID number is not in that list, there's no way of telling whether it will be compatible with your mboard and it's chipset and work for sure, so whether the ram will work in your mboard or not is a crap shoot (random).
See response 5 in this for some info about ram compatibilty, and some places where you can find out what will work in your mboard for sure:
http://www.computing.net/hardware/w...
Correction to that:
Mushkin www.mushkin.com

If nothing else is wrong, and your mboard is hooked up so you can hear mboard beeps, it is easy to check for whether your ram is incompatible.
Unplug the computer, or otherwise remove the AC power to the case/PS.
Remove all the ram.
Restore AC power.
Try booting.
If nothing else is wrong, you should hear a beep pattern that indicates no ram is installed.



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Response Number 3
Name: aegis
Date: September 6, 2007 at 14:38:42 Pacific
Reply:

If you don't get any beeps with the RAM removed, start disconnecting the drives and pulling the cards. you should get error beeps with only the motherboard/CPU, if the power supply is ok.

One common mistakes with new installs is to use motherboard mounting studs where there is no hole in the motherboard.

Last resort, pull the motherboard and bench test it.


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Response Number 4
Name: dondreak
Date: September 6, 2007 at 16:32:00 Pacific
Reply:

Yep, some motherboards need Low Density ram or high density. Crucial.com has good ram info.

I had the same problem recently. The motherboard said it would accept the ram but it would not boot or beep. I could hear everything power up but after about 15 seconds the green power light would go amber.

The bad news is if you return the memory, the company you bought it from (if purchased online) will charge you a Re-Stocking fee.

What brand memory did you buy? What speed is your processor's FSB (Front Side BUS) speed? What is the memory's FSB speed?

I just purchased a motherboard that accepts 400, 512 and 800 FSB but the PC2100 memory will not work but the PC3200 does.


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Response Number 5
Name: mdl100
Date: September 7, 2007 at 02:49:21 Pacific
Reply:

Thanks for all the replies. The memory I have is Cosair CM2X1024-6400. I can see that the supported RAM speed of the motherboard is PC2-4300, PC2-6400, PC2-5300. I checked the cosair site and the memory is compatible with the motherboard.
Ive tried a memory card in each of the RAM slots. Didnt change anything. Also, no BEEP.


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Response Number 6
Name: mdl100
Date: September 7, 2007 at 02:59:39 Pacific
Reply:

Also when it is powered on the light on the front stays at amber it never goes green


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Response Number 7
Name: mdl100
Date: September 7, 2007 at 07:13:35 Pacific
Reply:

green light is on now when i power it up and it stays green. Still nothing on screen though. Checked the cpu and no pins are bent


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Response Number 8
Name: Tubesandwires
Date: September 7, 2007 at 07:48:03 Pacific
Reply:

I took a look at the cpu support list for your mboard.
AMD Athlon 64 X2 6000+ 3.0GHz is only supported if you have bios version 203 or later.
Version 203 was released on 2007/06/28, which is not that long ago.
If the mboard was sitting awhile somewhere before you bought it, it may not have a new enough bios version to support recognizing the cpu.
You could try looking on the box in came in, or look for a sticker on the mboard such as on or near the bios chip to see if there is anything that indicates what bios version it has, but often there's nothing like that.
If the bios version cannot recognize the cpu, you will have to temporarily install a cpu it DOES recognize, flash the bios to a newer version, THEN your cpu will be recognized.


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Response Number 9
Name: mdl100
Date: September 11, 2007 at 05:53:09 Pacific
Reply:

Thanks for that. Im trying to source another cpu at the moment.


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Response Number 10
Name: Tubesandwires
Date: September 11, 2007 at 07:53:15 Pacific
Reply:

You don't necessarily have to buy another cpu. You could take you computer to a local place that builds computers and they could install a lesser CPU and flash the bios for you, for a reasonable fee.

Besides, although not a new enough bios version is a definite possibility, there are other things that could be wrong.
The most common is the PS is failing, or if you re-used a PS you already had, it just doesn't have enough capacity for your new mboard - e.g. a failing PS will often partially work, drives and fans will spin, yet the mboard won't boot fully and you get no normal video display; you probably need a minimum of 430 watts PS capacity, maybe more if you might get a higher end PCI-E video card in the future - they require a lot of power.
Check your PS.
See response 4 in this:
http://www.computing.net/hardware/w...


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Response Number 11
Name: mdl100
Date: September 12, 2007 at 06:39:57 Pacific
Reply:

Thanks for that. I doubt its the PS though. Its a new 700W PS


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Response Number 12
Name: Tubesandwires
Date: September 12, 2007 at 07:50:07 Pacific
Reply:

Overkill. No computer needs that much capacity.
It being new doesn't necessarily mean it's not faulty, especially if it's not a brand and model well known to be reliable - there are lots of el-cheapo PSs out there that are a lot more likely to cause you problems, sooner or later.
What brand and model is it?
However, if you try it with another mboard and it works fine, there's nothing wrong with it.


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Response Number 13
Name: mdl100
Date: September 14, 2007 at 07:39:52 Pacific
Reply:

Processor: AMD Athlon 64 X2 6000+ 3.0GHz Socket AM2 2MB

Motherboard: Asus M2N32-SLI Deluxe



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Response Number 14
Name: Tubesandwires
Date: September 14, 2007 at 09:13:54 Pacific
Reply:

"What brand and model is it?"

That's useful info but you have already told us that - I meant of the PS.

Also, your video card's 9250 chipset is 2X/4X/8X capable and the card is probably wired up for all three, whether you were aware of that or not. Some mboard chipsets will not tolerate a card that is capable of and wired up for 2X, especially newer ones.
See my answers in this recent post about that subject:
http://www.computing.net/hardware/w...



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Response Number 15
Name: mdl100
Date: September 18, 2007 at 04:31:53 Pacific
Reply:

ok. The PS is a Fortron/Source Epsilon

With regard to the interface type the 9250 is a PCI card. I didnt think there was a 2x/4x/8x capability


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Response Number 16
Name: Tubesandwires
Date: September 18, 2007 at 08:46:22 Pacific
Reply:

A Fortron/Source Epsilon appears to be a decent PS, though it has a two year warranty as opposed to the three year one available from other better PS makers.
However, even for known to be good PS brands/ models there is an average expected failure rate of up to 5% or so, and other factors can damage or kill the PS, such as power spikes or surges, especially from lightning strikes on the AC power grid, which can damage a PS or anything connected to it, even if you have everything connected to the computer, including the cable that connects you to the internet and all things that plug into AC power directly or through an AC to DC adapter, protected from power spikes/surges with a device or devices. And a common mistake people make is not unplugging the computer or otherwise removing the AC power to it whenever they fiddle with any connection inside the case.
ATX PSs are always powering your mboard in some places even when Windows is off, or even if you have no hard drive or ram installed, as long as the AC power to the PS is live. If you don't remove the AC power to the PS/mboard, you can kill your power supply e.g. by simply plugging in or unplugging your drives.

A faulty or damaged PS often partially works - the cpu fan and other fans and hard drives may spin, yet it won't allow the mboard to boot all the way.
The only way to tell for sure whether your problem is caused by the PS failing is to try it on another computer - see my link in response 10 for more info.

Regarding the 9250 - most people have the AGP version because it performs much better.
A second look at your mboard description tells me your mboard doesn't have an AGP slot.
As far as I have been able to determine, there is no such thing as a 9250 card that can be used in a PCI-E slot, so yours must be a plain PCI one.
Your manual does not mention plain PCI video cards at all, probably because their performance is poor in comparison to PCI-E cards, but in theory it should work, especially when you have no other video card.

Both plain PCI slots on this mboard may share their IRQ with something else - the first IRQ assigned preference is different for the two slots. Video sometimes won't work if it's IRQ is shared with something else. Remove the power to the PS/mboard, and try moving the 9250 card to the other plain PCI slot, restore power, try the computer.

You still haven't ruled out whether your bios version is the problem for the cpu you are using.


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Response Number 17
Name: mdl100
Date: September 19, 2007 at 07:27:19 Pacific
Reply:

Tubes

thanks for all the replies. With your help Ive tried just about everything so I am nearly putting it down to the bios version. Im getting a loan of a cpu in a few days so I can test this.
I know the PCI is the best and Im limited with the absence of the AGP card. But I had that card spare so I thought I could use it ok. Ive moved it around into different slots but no luck Im afraid.
I will wait until I get the other CPU to test.


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Response Number 18
Name: Tubesandwires
Date: September 19, 2007 at 08:21:22 Pacific
Reply:

I noticed yesterday at a place that has computer pieces that the mboard you bought is a relatively new model and is expensive where I live - over $200. Why did you buy a mboard that supports two SLI video cards at the same time if you didn't even have one?


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