ATI Radeon 4850: Over Temp Protect LED on

S

sbc_wut

New Member
I've recently purchased an ATI Radeon 4850, and the Over Temp Protect LED lights up, and nothing is displayed on the monitor. When I try to hook my monitor up to the ports on the motherboard I also receive a blank screen.
The monitor is functional, and 'wakes up' from standby mode directly after it is connected to any port.
The display worked once when I used an old PNY Geforce 210 card but has not worked after that.
Anyone know what to do?
Specs:
Asus M4A89GTD PRO motherboard
750W Kentek power supply
Radeon 4850 graphics card
 
You can leave the card in, but use onboard video and go into the bios. There will be a setting somewhere to turn primary graphics to PCIe. Save settings, and shut down. Move monitor cable to the card and it should work then.


Edit-I think in the AI tweaker tab of the bios, down near the bottom there will be ''Internal Graphics mode'' and you just select disable. Also under the advanced tab, in the 890GX chipset configuration, primary video controller, make sure PCI is first.
 
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Thanks for replying!

I'll keep that in mind when I'm able to fix my current problem: the monitor doesn't display anything when it's hooked up to the motherboard either. Unless when you say "onboard video" you're referring to something else?
 
ok, when you say that it worked with a 210, do you mean that was after the issue with eth 4850 or before?

If before, then try the 210 again and see if it shows. If it does, then the 4850 is wither overheating or bad.
Also, try the monitor on another computer that you know is working, just to be sure that its a computer issue and not a LCD issue.
 
The malfunction happened when the 4850 was enabled, which was after I used the 210 that functioned correctly. I have not been able to use the 210 since then.
I tried the monitor as a projector on my laptop and as a primary on another computer, it seems to work fine.
 
ok. Then I would guess 1 of two things. Your 4850 is overheating/failed or your PSU is not strong enough.
Looks like you have an off brand PSU, so that may be the cause. Do you have a multimeter that you can use to test the Volts coming from it?
 
Welllllll I just tested my PSU and the 24 pin was within normal parameters but when I got to both the 8 pin and the supply for the video card they were both on the low side. I wasn't able to test my supplies for the HD and cddrive though as my pins on my multimeter are too large.
I guess this means the solution to all my problems is just a new name brand PSU?
 
sbc_wut said:
Thanks for replying!

I'll keep that in mind when I'm able to fix my current problem: the monitor doesn't display anything when it's hooked up to the motherboard either. Unless when you say "onboard video" you're referring to something else?
Click to expand...

My apologies, I read your original post wrong.

I would remove the 4850, reset the Cmos, and see if it will boot with the onboard. It still may be set to PCIe, even though without a card in there it should default to the onboard but you never know.

If the PSU went bad, they usually pop and then won't even power up....so I doubt it's your problem. Plus if it won't even boot without a card, something else is wrong. Even a complete junk 300w PSU can power up your system without a card.

One other question, what CPU are you running?
 
I'm running an AMD phenom ii x4 840.
I reset the cmos an popped out the battery, restarted with it on the onboard and nothings different. Would it make a difference if this is a new build? I havnt input anything fer the BIOS and theres no OS.
 
Wow umm, you may have fried something then. If it's still powering up, it's likely the motherboard or ram.

To test the ram, take one stick out and see if it boots. If no boot, take that stick out and put in the other one. If still no boot, put the first stick in a different slot, then try the other stick in a different slot as well. That rules out all possibilities, whether it be a stick or a dead slot (which has happened to me).
 
I switched the ram around with no results. What kind of tests can I run to see which piece of equipment is fried?
 
Well at this point, it's probably the motherboard. But, you might as well try first swapping out the power supply to a good quality unit. If the motherboard is fried, it's probably still under warranty from Asus and you can get it RMA'd and fixed for free.

If you buy within the next 2 days, the corsair CX500 has a promo code to make it $50 PLUS there's a $20 MIR-

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027


Thats a crazy good deal, and a quality 500w is PLENTY for your needs and even with future upgrades. Even the CX430 would be enough for you, but the 500 is a way better deal with the promo code plus like I said more future proof.
 
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Wait, I read on another forum that your HDD light was on all the time when you power it on?
I've had this happen before, a dead HDD can make your system not POST. If your hard drive is Sata, just unplug the sata cable. If it's IDE, is the cable also have a slave hard drive on it? If so, just unhook both just for checking to see if the HDD(s) are the problem.
Also, it's quite possible the PSU fried a hard drive too. I also saw that you tested the 4850 in another PC and it didn't work but the thermal light was off? The PSU could have tanked the card as well. When a PSU goes, it doesn't usually power up at all anymore but it is still possible that it is the root cause.

So, try the hard drive thing, and if that STILL doesn't work, don't do anything else until you get a new PSU in there.
 
I'm glad you found my other post.
I have one sata hard drive, I disconnected it and the HDD light stayed on during startup. I also tried running the entire system using a different power supply.
When I tried the video card on the other computer I had to use the same PSU as the other computer didn't have a cable that connected to the card. Is that why it did not work over there?
I was also previously unaware that I had to use motherboard standoff screws and had the motherboard connected directly to the chassis. I've ordered a replacement motherboard along with the proper screws, I'm wondering if it would have affected my other hardware?
 
O yeah, the motherboard has all kinds of pins in the back of it that cannot come in contact with each other...if it was rubbing the back of your case it probably shorted on it and fried something.

Hmm, hard to say if you had to use the same PSU. Kinda odd that the HDD light stayed on, this must be the short in the board because it's touching the case.

You can probably still RMA that board with Asus. Once you get your new board, and confirm that was the problem (hopefully nothing else fried), I would send it in.
 
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