[petteyg359]

I sold Charr a 4850 (with TR V2 cooler) from classifieds. I used it in my system before selling it, in both PCI-E slots, both single card and crossfire with another 4850, with no issues. It arrived intact, but is giving him a black screen, though it passes POST fine. Any ideas to get it working?

[necrokiller]

If you can atleast see the POST then its not a power supply issue.

Where exactly does it go black? Do you see the Boot screen? Try booting in Safe Mode, this sounds like a virus or a malware problem, not necessarily the video card itself. Also, if you can get past post, tell him to start windows using Low-resolution mode.

If he doesn't have important files to lose then best would be to install Windows again.

[glock19owner]

This still could be a PSU issue...the video card will boot up at low voltage...but after boot it goes into 2D clock mode...which is right after post...

As you can see by my 3870 BIOS from CABE...there is a good size jump on voltage (for a vc)...and if they are somehow right on the very limit as it is...adding that card could very well put them over there load limit...when it hits 2/3D mode

[petteyg359]

Screen is black from power on. POST success is indicated by motherboard LEDs.

Originally Posted by Charr

I have four 6 pins on my DA750, and I tried them all, and they were no different. I have an HD3870 in right now, and it works great. I haven't tried searching around to see if anyone else has had this problem in the past, but I have no idea how to phrase it to get relevant results.

[glock19owner]

This is why I think the LED Poster on the Asus boards are god sends...no guessing if it posted or not...and no having to memorize codes that you forget anyways...

Try to see if there is anyway they can install it on a ROG asus board ...

[necrokiller]

Maybe try another monitor? PSU was the last problem I could think of... If possible, try thr card on another system...it could be a driver issue..maybe the bios isn't picking up his card...try to re-install Windows. If all else fails, the card might be defective. :S

[Charr]

Thanks for the thread! It isn't a software problem, def a hardware issue.

System: (all stock)
5000+ BE
Biostar TA770 A2+
2GB Ballistix
Silverstone Decathlon 750w
HD4850 (replaced an HD3870)

Here are the problems: When the system powers up, the LEDs on the 4850 flash, and the system proceeds to post. The board has LEDs that show what fails during the post. Both CPU and VGA past the post, but the 4850 does not output any video. I tried three different monitors on both DVI and VGA on both ports of the video card, but none of the monitors detect the signal. My PSU has four 6 pin plugs, and I tried them all as well (had problems with a 7900GT with flaky connector), and all of them returned the same thing. Power shouldn't be a problem though, I used all four connectors in the past to crossfire a pair of HD2900XTs. So far, I pretty much have no ideas what seems to be wrong here. The HD3870 works fine in exactly the same position, and the 4850 doesn't seem to be dead. I have a 680i board sitting around that I could stick the card into, but I would rather avoid that, as it would require me to gut my current setup to stick the 680i in.

[rallyfan1986]

Im fairly sure I read these cards have small LED's on them, similar to ones on the motherboard.

Have you had a look to see if any of these light up?

[Salmon91]

are u using vista 64-bit?

[Charr]

Originally Posted by rallyfan1986

Im fairly sure I read these cards have small LED's on them, similar to ones on the motherboard.

Have you had a look to see if any of these light up?

They flash at boot. Are they supposed to stay on?

Originally Posted by Salmon91

are u using vista 64-bit?

I am not even running Windows, so don't even consider it!

[glock19owner]

Originally Posted by Charr

They flash at boot. Are they supposed to stay on?

As far as I know...no they are not...the X2 has the same setups...actually they shouldnt be on at all...the only time my LEDs have came on is when my PSU is overloaded and shuts a GPU down on the X2...

Not sure if they LEDs mean the same on the 48-- cards though...

[Charr]

Here is a website showing the LED functions:

When Leds are on(lit) they mean:

HD4850 LEDs
D1601 - Over temp protection enabled
D1602 - EXT 12V fault


HD4870 LEDs
D1601 - Red LED On, shows critical temperature fault
D1602 - Red LED On, shows External power connector A was removed
D1603 - Red LED On, shows External power connector B was removed
D601 - Red LED On, shows critical Core power fault

And by on at boot I mean very faintly, they flash for a 1/4 of a second as power hits the curcuit, and no longer than that.

[petteyg359]

Never had any problems with the Biostar before? Reading various forums (I can't find an actual review of it anywhere) with threads about problems with the TA770 makes me suspicious of the board. Have you checked the clear CMOS jumper? Tried a different molex in the plug above the PCI-E?

[glock19owner]

I tend to agree...this is either going to be a MB or PSU issue...

[Charr]

Never had any problems with any Biostar board, and I own three of them. I have some time today, so I can try a few things out with the board. I haven't connected the aux power, so I'll try that one out, and if I get some time the 680i gets to breath again. Thanks for watching my back guys

[Kazinji]

I currently have this problem also. This is a brand new computer that I bought the parts and assembled it. Everything powers up but there is no video output. Tried different screens etc. I'm at a loss as to what is going on other then, the mobo is not updated to use the newer video card.

PSU: PC Power & Cooling 750 crossfire.
Mobo: Asus M3A32-MVP Deluxe
Video: Asus EAH 4850

[FractalNZ]

I'm also experiencing these problems,
Brand new build, Clean OS.

I can normally get the machine to boot correctly after about 5-6 restarts.
However sometimes it takes over a hour to get it to go, Highly frustrating.

I get these logged errors sometimes in event viewer : GCO failed to execute AtomBios ; MODE: GXO Execute BIOS Table Error. - All coming from ati2mtag

Card bios issues ? I've emailed gigabyte and sapphire but haven't had a response yet.

Another issue I'm also having is 90% off the time, Overdrive is missing in CCC, When there is no OD then nothing will detect temps.

XP 32bit
Gigabyte EP45-DS4P
Corsair Dominator 4GB 1066
Corsair TX750
Sapphire 4850
Q9450

[Kazinji]

When lit, the diagnostic LEDs for the following cards have the following meaning :-


HD4850 LEDs

D1601 - Over temp protection enabled

D1602 - EXT 12V fault


HD4870 LEDs

D1601 - Red LED On, shows critical temperature fault

D1602 - Red LED On, shows External power connector A was removed

D1603 - Red LED On, shows External power connector B was removed

D601 - Red LED On, shows critical Core power fault


At BOOT/POST, the card's fan will spin @ 100% for a short while and 3 of the 4 LEDs will light up for a brief period and then go out ( D601 should remain unlit ). This is NORMAL behaviour as the card is performing it's own type of POST test.

by: Gr33nGecko @ Ati Forums

[chawks2]

I have also seen the black screen issue, and have been trying to follow this problem closely. My original problem appeared to be a PSU issue, due to the D601 LED and I thought my PSU was underweight, but running Furmark still resulted in the black screen issue after my replacement PSU arrived.

Apparently the problem has to do with VRM temps. According to this article, a uk chap has reduced his temperatures by doing a very noteworthy mod. He also comments about what he believes the issue to be with post #8.

I spoke with DD today about getting a full coverage block for the 4870. He told me he was close to having the block available for next week. However, he did state he was unaware of the VRM location and was going to work on a revision to the block.

[petteyg359]

Just got the card back. The LEDs are too darn bright and close together, I thought I saw D1602 flash, but it may've been D1601. On powerup of system, all LEDs flash as usual, and other things do their boot thing (fans spin, Areca 1210 beeps its horridly annoying beep). About 3 seconds later, D1602 (or D1601) flashes, and the system does a "hard" reset, like it would if you changed the FSB. I tried with both the V2 and stock cooler.

BTW, Charr, you REALLY need to check your case airflow If your case heated up enough to melt the sinks off, you've got other issues. The thermal tape on those survived 48C+ ambient (and 80C+ chip temps on the VRM). Are you sure it was a RAM sink that fell off? If it was one of the sinks on the power area, and the chips there overheated, that could explain the problem.

[EmAn]

I had this same problem. Try a different monitor or a Dvi - Vga adapter... That is what did the trick for me.

[secure]

What driver version are you using? because if its 8.8, currently if the card is bios moded there are problems with cats 8.8 drivers

http://www.xtremesystems.org/forums/...&postcount=638

full thread http://www.xtremesystems.org/forums/...192411&page=26
if your bios isnt modded than im not sure....I have heard people having problems, but updated the motherboard and the card would work fine though so you could also try that.

[petteyg359]

secure, drivers have absolutely nothing to do with it. The system won't even boot with the card. My other 4850 (Gigabyte) is still working fine, in the same slot I tried the Sapphire (the other (broken?) one) in. BIOS isn't modded (unless Charr managed to mod the BIOS with no video output ). I haven't gotten a response from fxvideocards yet for warranty information (they claim they only give 30 days warranty, but Sapphire says 2 years, and that all warranty issues are handled through the reseller).

[Charr]

It can't be heat, I have a CM Stacker 832 with nine high speed YL in it, the thing is a screaming monster! I have been thinking, and it could be from what was uncovered. Have you put the sinks back on? Also, is it recognized when in a secondary position?

[petteyg359]

Define "secondary position". On my board, it isn't getting far enough in the boot process to have a blank screen It powers on, flashes all the LED (as if it is a healthy card), and two seconds later, the power LED lights for about a second before the whole system resets. If I let it go on its own, it will perform this cycle over and over and probably never stop. I have to hit the switch on the power supply to turn it off.

[Charr]

As a secondary card, not outputing display, and not in CF.

Also, the sinks fell off before the card was powered on the first time, so it probably got wicked hot during the original shipping. That is odd, the cycling boots never happened to me, it would boot up normally, minus any signs of life from the GPU, aside from the board's LEDs showing a completed POST.

[petteyg359]

Originally Posted by Charr

As a secondary card, not outputing display, and not in CF.

Also, the sinks fell off before the card was powered on the first time, so it probably got wicked hot during the original shipping.

Wish you'd claimed that as physical damage on an insured package Anyway, I've got a shiny new Areca 1210 in my other PCIE slot at the moment. I'll take it out tomorrow.

[secure]

whoops I miss read last night, I only read the part where he said "both vga and cpu past the post screen" I assumed it was the os that was giving him the black screens. Has he tested the card in another rig? or am I smoking crack again? (I havent slept all day....) pretty odd that it worked for you though, and it does not work for him, it might have died while you sent it to him...

[bobKringe]

Ive had the same issue
Bought a Gigabyte Radeon 4850, broke speed limits getting it home to wack it in only to find a blackscreen after loading 8.8 drivers.

I was using a 19" Proview 900W and my box would post no prob but restart as soon as the video drivers would load just before the welcome screen then hang.
After spending the day trawling through the Google on the interweb, I found the common denomiator & most likely suspect was the monitor EIED issue thingy.
Fortunatley for me I had just bought Mother a new 20" BenQ 2000W so I thought I will try it on mine & see.
WOOT!
Guess who now owns the BenQ
Second 4850 comin on tuesday

As I would Imagine, but i could be wrong when ATI tested these cards they would be using the lastest mickey mouse monitors so they probably had no issues,
Rich companies often forget the lowly who cant afford the lastest and best of everything.

Hope it helps someone

AM2 64x2 5000+
GB MA790X-DS4
4GB Patriot DDR2 4-4-4
GB HD4850

[Charr]

Originally Posted by petteyg359

Wish you'd claimed that as physical damage on an insured package Anyway, I've got a shiny new Areca 1210 in my other PCIE slot at the moment. I'll take it out tomorrow.

I wish I thought of it before!

Originally Posted by secure

whoops I miss read last night, I only read the part where he said "both vga and cpu past the post screen" I assumed it was the os that was giving him the black screens. Has he tested the card in another rig? or am I smoking crack again? (I havent slept all day....) pretty odd that it worked for you though, and it does not work for him, it might have died while you sent it to him...

Wish it was a software issue, it would make the problem a lot less complex. It may have got damaged in shipping, but there was nothing noticable wrong with it, other than no display but POST passes.

Originally Posted by bobKringe

Ive had the same issue
Bought a Gigabyte Radeon 4850, broke speed limits getting it home to wack it in only to find a blackscreen after loading 8.8 drivers.

I was using a 19" Proview 900W and my box would post no prob but restart as soon as the video drivers would load just before the welcome screen then hang.
After spending the day trawling through the Google on the interweb, I found the common denomiator & most likely suspect was the monitor EIED issue thingy.
Fortunatley for me I had just bought Mother a new 20" BenQ 2000W so I thought I will try it on mine & see.
WOOT!
Guess who now owns the BenQ
Second 4850 comin on tuesday

As I would Imagine, but i could be wrong when ATI tested these cards they would be using the lastest mickey mouse monitors so they probably had no issues,
Rich companies often forget the lowly who cant afford the lastest and best of everything.

Hope it helps someone

AM2 64x2 5000+
GB MA790X-DS4
4GB Patriot DDR2 4-4-4
GB HD4850

Yeah, I tried it in a few machines and a few monitors, but all with the same result. I wish I had enough parts for an Intel rig, I could have put it in a 680i board collecting dust.