Solved Previously Working Upgraded Build: No Video.

May 22, 2012 at 06:24:38
Specs: Windows 7, AMD X2 255/ 4GB (One Stick)
Hi, thanks for reading this.

Bear with me cos this one’s got a story. I recently upgraded my build and haven’t had any problems for a week, but yesterday it started crashing and today it won’t output any video at all.
The specs are:

•ASUSm4a88t-I deluxe
•AMD X2 255
•4 GB RAM (one stick)
•ASUS Radeon 6850
•Corsair 600W CX

The recent upgrade was the 6850 and the PSU. Previously I used the onboard motherboard graphics (Radeon 4250) and a no-brand 300W power supply. This worked fine until just before the upgrade, whereby first I noticed graphics artefacts in every game: odd polygons sticking out of the ground and people’s faces. Weird. Around this time the computer also started completely freezing: but this only happened in windows, and not in safe mode. I’ll be honest and say the computer was a bit prone to overheating and switching itself off after a few hours of Mass Effect 2 at this point. I felt I may have frazzled the onboard graphics, but I was after a new card anyway so I bought the 6850.

So for a week I’ve had no problems. It’s been a dream with the 6850. But yesterday the freezing started again. At first only about once an hour (and would need a reset) but this morning, more often. Then it did it within a few minutes of me restarting the computer. And now it won’t output video at all, not even to start up. I was hoping to god it was a windows thing but in that time it was freezing both in windows safe mode and also on the startup screen before BIOS, once. It’s hard to feel like the freezing and no-video are unrelated.

I’ve tried lots of things since. Taking the graphics card and seeing if it outputs on the onboard. Taking everything apart from CPU, ram and motherboard out. Resetting the CMOS. Reseating everything. Making sure all the power cables are plugged in. Nothing’s working. The fans all spin but no video.

I have a question about posting. People say I should hear a beep – is this only if a motherboard speaker is connected? I have one, but I’ve tried lots of times to work out where it plugs in – I came to the eventual conclusion that my motherboard doesn’t have that facility. Is that ridiculous? Here’s a diagram of the motherboard from the manual:

http://dl.dropbox.com/u/3648716/E58...

Thanks muchly, any advice appreciated.


See More: Previously Working Upgraded Build: No Video.

Report •


#1
May 22, 2012 at 07:38:20
I think all new motherboards have a built-in speaker to emit BIOS beeps. surely you must remember if you got any beeps when it was working okay (usually one short beep)?

"I was hoping to god it was a windows thing"

No video output, not even during the boot process, cannot be a "windows thing", it's definitely faulty hardware.


Report •

#2
May 22, 2012 at 13:35:53
✔ Best Answer
"The recent upgrade was the 6850 and the PSU "

Did you install both of them at the same time ?

If you installed the HD 6850 first, the 300 watt power supply was indequate and the PS may have been damaged. Sometimes when a power supply is malfunctioning it damages something else on the computer.

AMD Radeon™ HD 6850 Graphics
http://www.amd.com/us/products/desk...

System Requirements

- 500 Watt or greater power supply recommended


"Previously I used the onboard motherboard graphics (Radeon 4250) and a no-brand 300W power supply. This worked fine until just before the upgrade, whereby first I noticed graphics artefacts in every game: odd polygons sticking out of the ground and people’s faces. Weird. Around this time the computer also started completely freezing: but this only happened in windows, and not in safe mode. I’ll be honest and say the computer was a bit prone to overheating and switching itself off after a few hours of Mass Effect 2 at this point"

High end games tend to stress the CPU and the video adapter to the max - they both draw more current, and produce more heat.

The main chip that has the onboard video integrated into it has a large heatsink on it. That chip should never get too hot unless you had a seroius overheating problem inside the case.

E.g.
caused by
- the CPU fan didn't come with the CPU and was inadequate
- the 300 watt power supply's fan was spinning slower than it should have been, or was not spiining at all. That's more likely to happen with an el-cheapo power supply that has only a 1 year warranty or less, which may have a fan with two cheap sleeve bearings, or one sleeve bearing, one ball bearing.

Your video symptoms also could have been caused by the 300 watt power supply being faulty, and it not responding to an increased load properly.

Sometimes when a power supply is malfunctioning it damages something else on the computer.

El-cheapo power supplies are a lot more likely to cause you problems.
What is the make and model of the 300 watt power supply ?
Or does you saying "no brand" indicate it's such an el-cheapo model that it doesn't have an identifiable brand ?

"No video output, not even during the boot process, cannot be a "windows thing", it's definitely faulty hardware."
..... or a problem with the hardware such as ram that is not properly seated, incompatible ram, etc. .

Usually that's the case.

However, in this case this mboard has a main chipset that supports Hybrid CrossfireX video - both the onboard video and the video on the video card in the PCI-E X16 slot working at the same time. .
In that case if the video chipset on the card in the slot is NOT supported by the Hybrid video feature, you MAY get no video from the video card and the
onboard video is still working with default bios settings, and in that case you must
change at least one setting from it's default setting in the mboard's bios Setup to get video from the card in the mboard slot.

In this case, the Hybrid CrossfireX video featutre probably ONLY works when the card in the PCI-E X 16 slot has a HD 3450 or a HD 3470 video chipset.

Compatibility Chart
http://game.amd.com/us-en/content/i...

What applies to the 790GX, 780G, 780V, and 760G main chipsets probably applies to the main chipset on this mboard.

"I’ve tried lots of things since. Taking the graphics card and seeing if it outputs on the onboard."

If you HAVE changed settings in the bios so that the onboard video is actually disabled, or is NOT the first thing the bios tries to initialize first, then you won't get any video from the onboard video when you remove the HD 6850 card until the Cmos battery has been removed then re-installed, or until the Cmos has been cleared by moving a jumper on the mboared to the clear position, moving it back to the "normal" position.
In either case, you'll get a Cmos Checksum error or similar message the next time you boot the computer - you must go into the bios ansd set at least the current date and time, Save bios settings, to get rid of that message while booting the computer.

"People say I should hear a beep – is this only if a motherboard speaker is connected? I have one, but I’ve tried lots of times to work out where it plugs in – I came to the eventual conclusion that my motherboard doesn’t have that facility. Is that ridiculous? Here’s a diagram of the motherboard from the manual: "


If you heard a single beep, or sometimes it's a pair of beeps, while booting your computer when it worked fine previously, then the mboard or the case has something that is producing that sound.

That diagram is useless regarding determining whether that's on the mboard surface and is built in.

I Clicked on the picture of the mboard here.....
http://www.asus.com/Motherboards/AM...

.....then savied it to my hard drive, opened it, and zoomed in on it - it appears there's no normal sized piezo sound device, and no flat on the the mboard cmos battery socket . (It may have a vertical socket for the Cmos battery, or a tiny rechargable battery.)

I looked at the manual for your mboard.

If there are pins you have to connect a case speaker or a piezo sound device to, they're shown in the manual somewhere.

The most common place to find those pins is on the front panel header for the power switch, reset switch, power and hard drive activity leds, etc. .

No pins for a speaker on System panel F_PANEL header

No mention of pins for speaker in manual

Searching for beep in the manual reveals there is a warning beep possible because the CPU fan header or Chassis fan header has a fan connected to it that is spinning slower than the minimum rpm setting in the bios, or it isn't spinning at all,

So - the mboard DOES have a sound producing device of some sort, somewhere - it must be very tiny.
..........

If none of the above helps.....

Your Corsair power supply is probably much better quality than the 300 watt power supply, but any power supply can malfunction or fail completely - it's just a lot more likely with an el-cheapo PS.

Failing power supplies are common and can cause your symptoms.
Check your PS.
They often partially work, fans and hard drives may spin, leds may come on, yet you may get no video and the mboard will not boot all the way.
See response 4 in this:
http://www.computing.net/hardware/w...

The only way to rule out the power supply as the cause of your problem FOR SURE without buying a new one is to try your power supply with another working computer, or try a power supply from a working computer with your computer, if you can.
A power supply from another working computer should have a least a 500 watt capacity when the HD 6850 card is installed, or 300 nwatts when it's not installed.

Or - try the original 300 watt PS with your system when the HD 6850 card is not installed.
....

Other causes ?

Make sure that you DO NOT have a metal mounting post under the mboard in a place where there is no mounting hole for screw in the mboard - in that case the mis-placed metal mounting post may be intermittantly shorting something on the underside of the mboard.

Have you CHANGED which ram you have installed ? People often do that when they can't figure out why there system is not working properly.

If yes, not all ram that you might think should work fine is 100% compatible with your system.
In the worst cases of incompatibility your mboard WILL NOT BOOT all the way with it installed, and the mboard may not even beep - the ram has to be compatible with the mboard's main chipset, or in the case of recent mboards, compatible with the memory controller built into the cpu.

If you still have the ram that was installed when the system worked fine, and you know which module(s) it (they) is (are), try installing just that ram.

It is extremely RARE for ram that worked fine previously when installed in the SAME mboard to go "BAD".

It is easy to test for incompatible ram, or damaged ram, that has caused your mboard to fail to boot.

Make sure you have a speaker or speakers or the equivalent connected to the mboard so you can hear mboard beeps (see your mboard manual if you need to).
Remove the AC power to the case/power supply.
Remove all the ram.
Restore AC power.
Try to boot.
If nothing else is wrong, you will get no video but you will hear a pattern of beeps that indicate no ram is installed, or a ram problem.
E.g. for an Award bios or a bios based on one, that's often a beep of about a half second, silence for a half second, a beep of about a half second, silence for a half second, continuously.
.....

Has there been a power failure event that happened since the last time the computer worked fine ? One caused by a lightning strike is the most likely to damage something on your computer. often the power supply if not more than that.

Have you been REMOVING the AC power to the casse / power supply AT ALL TIMES when you've been fiddling around with components or connections inside the case.
If you didn't do that AT ALL TIMES, you may have damaged something
...............................................................................................................

"•Corsair 600W CX"

Builder series CX600 V2
http://www.corsair.com/en/power-sup...

us-certified-power-supply.html

•80 PLUS certified to deliver at least 80% efficiency at normal load conditions (20% to

100% load)

•Dedicated single +12V rail offers maximum compatibility with the latest components

•Three year warranty

The manual for it shows it has two PCI-E connectors coming from the PS for video cards, but it doesn't say whether they're six "pin" or 8 "pin" (6 + 2 - the 2 "pin" part of it is detechable from the 6 pin par of it).

The Asus EAH6850 series apparently has two 6 "pin" power sockets.

Are you plugging in one connector from the power supply into each socket ?

If you're using a Y cable (one PCI-E connector to two PCI-E connectors) wiring adapter adapter with one PCI-E connector from the PS to connect to the two sockets on the card, that won't be able to supply enough current (amperage) to the card.

PSU Myths BUSTED

Myth 1: Only Single Rail Power Supplies Can Power Up High-end Graphics Cards!
http://www.antec.com/Believe_it/PSU...

Myth 2: A Single-Rail Power Supply Is More Powerful Than A Multi Rail Power Supply!
http://www.antec.com/Believe_it/PSU...

Myth 3: A Single Rail Power Supply Is As Safe As Multi Rail Power Supply!
http://www.antec.com/Believe_it/PSU...


Report •

#3
May 30, 2012 at 04:02:20
I'm just going to thank you so much for such a brilliant and extended answer.

I took it a repair shop in the end and they confirmed the motherboard was fried. I've bought new.

Thanks again,
Ioan.


Report •

Related Solutions

#4
May 30, 2012 at 07:15:54
Thanks for the thanks.

Why you were using such a tiny mboard with a standard sized power supply ?


Report •

#5
May 30, 2012 at 08:14:34
It was originally just a media PC and I used an Xbox 360 for gaming, but then the Xbox broke and I found my little media PC wasn't terrible for gaming on low settings. I also realised that for £100 I could buy a graphics card that would make it kinda great for gaming.

So I got pretty close to buying a new graphics card before realising my power supply wouldn't be up to scratch, and I only had a small case so I would have to find one of the smaller-sized power supplies with enough wattage - I really struggled with this, there weren't many.

So I just bought a bigger case and power supply and the graphics card, thinking I'd have more room for extra hard drives and things in the future. I'm glad I did, to be honest, because now as a replacement motherboard I've bought a bigger one with loads more slots and options! The small motherboard also looked ridiculous, it was pretty much smaller than the 6850!

:)


Report •

#6
May 30, 2012 at 11:59:11
Ah !

A friend of mine has a Shuttle XPC mini system, the mboard is probably ~ the same size.

He had problems, so I looked up the system and the mboard (only a Shuttle made mboard was suitable for that case) and found one web site where others had found that two large electrolytic capacitors on the exact same mboard tend to fail, and if you replace them soon enough, everything works fine. Sure enough, I found two failing capacitors, bulged and leaking, the tallest ones on the mboard. The owner of a small local long time electronics parts place used to repair mboards, so he had the high quality capacitors that were required that would likely never fail. I replaced the capacitors - the mboard then worked fine.

Before I found that info, I looked up the possible power supplies you could get, because some of the symptoms were similar to what you sometimes get when a power supply is starting to fail.
(e.g. It wouldn't start up every time when you pressed the power button, but when that did work, Windows loaded fine every time, and Restarted fine.)
The same as you, I found there wasn't much to choose from, although there were generic ones in a similar tiny PS case that fit inside the case that were cheaper than the official Shuttle ones that had a bit higher wattage capacity. All of them were over $100.

I would have tried a regular PS with the system, but the mboard has a mini ATX main 24 "pin" power socket rather than a regular sized one. I looked on the web and locally and found no mini ATX (male) to regular sized ATX socket (female) wiring adapter.
(Later on I made one from the mini ATX power connector from a dead PS from a mini HP system - skinny desktop tower case - and the female connector from a standard male to female 24 "pin" ATX power socket extender wiring adapter.)

Later on the same guy had problems with an older LG LCD monitor he was using with that system. It turned out it had a failing capacitor on one of the boards inside the monitor - I replaced that and the only other one that was made by the same maker - replacing those fixed that problem too.


Report •

Ask Question