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Having Nightmare. My 7950 is not booting.

722 views 24 replies 6 participants last post by  smoker91 
#1 ·
Hi,

To keep it short, after plugging in my 7950,nothing comes up and when I plug directly to my motherboard, everything works fine.
I am using Asrock z77 Extreme4 motherboard, running on i5 3570k (no oc), with 8 gigs of 1600mhz Gskill ram.

So when I am plugging in my gpu, SAPPHIRE logo illuminates, fans on gpu is working, but there is no BIOS flash screen. Instead, the motherboard reads error code "62".

I have tried other pci slots, but having same error. I have also set the PCIe as my "Primary", but still nothing happens and it gets freeze before BIOS flash scree.

I cannot afford another card, and I bought this in 2013,this is all I have. I wish there is some magic way to make this card work again.

I haven't tested on other computers, but yeah that's the only last option which I have to try.

Yesterday, something weird happened, as I was troubleshooting with my gpu, I plugged in and it indeed bootup in windows. But the loading was so slow like it was struggling at windows loading icon, but after few seconds, when you are in OS, everything was working fine. I was confused, so I did install the latest driver and everything was working fine. The next day, I switch on again, it again greeted me with error code 62.
 
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#3 ·
Quote:
Originally Posted by 033Y5 View Post

could you try clearing cmos and remove all ram and try each stick individually
Hi,
I already did that. I have tried pressing the clr cmos given at motherboard, and also taking battery off for 3mins. After bootup, it ends up showing error code 62 at motherboard and nothing on screen.

Right now, the ram sticks are on 3rd and 4th,when I switch sometimes it shows code 55.
But both ram sticks are working.
 
#5 ·
have you been using the 7950 before the issue or a different gpu?
are you using the most recent motherboard bios ?

can you unplug and reseat all you power cables for gpu and cpu 4/8 pin and motherboard 24 pin

can you boot using the igpu on your cpu and go to Boot section of the BIOS and switch it from Legacy to EFI
 
#6 ·
Quote:
Originally Posted by 033Y5 View Post

have you been using the 7950 before the issue or a different gpu?
are you using the most recent motherboard bios ?

can you unplug and reseat all you power cables for gpu and cpu 4/8 pin and motherboard 24 pin

can you boot using the igpu on your cpu and go to Boot section of the BIOS and switch it from Legacy to EFI
Hey, I somehow manage to run my card on single stick which happened just now. So now that I have logged into windows with my card, I run the furmark stress test and after few minutes in, it crashed. And when I reboot, it shows code error 62 again. So I again took out battery and my ram stick started again, its not even booting and showing error code 62
 
#8 ·
Quote:
Originally Posted by 033Y5 View Post

dont use furmark but try unigine heaven / valley
is the card overheating
have you changed thermal paste on the card
As soon as I run the furmark at that time, it was showing 61 degree Celsius and was going up to 67 and then it crashed.

Did you mean thermal paste on cpu? Or gpu? I did changed paste on cpu, but not on gpu. I mean, can we even open gpu? :O
 
#9 ·
What is your PSU? It could be the problem.
 
#11 ·
Quote:
Originally Posted by smoker91 View Post

Cooler Master GX650 Bronze.
not very fond of cooler master units, but it should be plenty doesnt mean it is. im seeing 6 issues that could be possible causes:

1. Bad or "going bad" RAM that hasnt completely given up the ghost yet

2. bent or missing CPU pins

3. Internal CPU memory controller going bad (usually only happens if you overvolt it too far)

4. Inadequite power (im not a psu guru but 7950s draw alot of power. around 250-300w IF i remember correctly, its been a while)

5. Bad PCI-E Slots on Motherboard

6. The GPU is going bad (only way to find this out is test it in another known working pc)
 
#12 ·
Quote:
Originally Posted by PCSarge View Post

not very fond of cooler master units, but it should be plenty doesnt mean it is. im seeing 6 issues that could be possible causes:

1. Bad or "going bad" RAM that hasnt completely given up the ghost yet

2. bent or missing CPU pins

3. Internal CPU memory controller going bad (usually only happens if you overvolt it too far)

4. Inadequite power (im not a psu guru but 7950s draw alot of power. around 250-300w IF i remember correctly, its been a while)

5. Bad PCI-E Slots on Motherboard

6. The GPU is going bad (only way to find this out is test it in another known working pc)
PC is working just fine when I unplug my gpu and connect directly to my motherboard via hdmi. And both 8GB ram working perfectly.

There can be issue of bent cpu pin because, at the time I purchased this motherboard, I didn't knew but something was wrong with pin coz it was restarting again and again back in 2013. So asrock people fix it (no replacement), and it worked perfectly fine after that.

I tried different pcie slot, same 62 error.

But I am interested and want to give shot by opening my gpu. @003Y5 suggested that I should add paste on gpu. Do you think if that will work?
 
#13 ·
Quote:
Originally Posted by smoker91 View Post

PC is working just fine when I unplug my gpu and connect directly to my motherboard via hdmi. And both 8GB ram working perfectly.

There can be issue of bent cpu pin because, at the time I purchased this motherboard, I didn't knew but something was wrong with pin coz it was restarting again and again back in 2013. So asrock people fix it (no replacement), and it worked perfectly fine after that.

I tried different pcie slot, same 62 error.

But I am interested and want to give shot by opening my gpu. @003Y5 suggested that I should add paste on gpu. Do you think if that will work?
thermal paste replacement will help temperature wise if done properly. dont touch the thermal pads on the GPU's ram chips though
 
#14 ·
Quote:
Originally Posted by PCSarge View Post

thermal paste replacement will help temperature wise if done properly. dont touch the thermal pads on the GPU's ram chips though
I mean opening and cleaning gpu all together will be a good idea? And worth a shot? Before I go ahead and buy 1060. And before that, I will test on other pc too.
 
#17 ·
Quote:
Originally Posted by smoker91 View Post

Cooler Master GX650 Bronze.
Looks like a decent PSU. But it is still a suspect. Unless you can test the 7950 in another PC to rule it out.
Quote:
Originally Posted by Travis
A modified non-modular version of Silent Pro 600/700W.
 
#18 ·
Quote:
Originally Posted by HeadlessKnight View Post

Looks like a decent PSU. But it is still a suspect. Unless you can test the 7950 in another PC to rule it out.
i go simply by hey. it crashed under load. PSU is first thing id worry about.
 
#20 ·
when did this problem first start ? did you change anything in the pc before this started happening?
try cleaning the gold contacts on the graphics card and no the ram sticks

did you try all ram with one stick at a time and each slot ?

did you try booting using the igpu on your cpu and going to Boot section of the BIOS and switch it from Legacy to EFI?
 
#21 ·
Quote:
Originally Posted by smoker91 View Post

Why is it not crashing when running without gpu. I also not ready to accept until I check on another system that gpu is dead.
it crashes with the gpu because the gpu is drawing an extra 250-300W from that PSU to power itself. without the gpu your lucky if your system pulls 200W.

in short - more stress on PSU to provide power is causing system to lock up. which im guessing means it is not up to supplying the power demand of your gpu.

your power supply's max rating is 650W. if you draw close to or over that. it has an internal safety circuit to shut itself down before it catches fire.

power supply rating are what effect that. 650W is the Peak Load of that unit. it cannot sustain that forever without failing. bronze rated power supplys are only good for around 80% of thier rated capacity which means your unit can reliably without a fuss. supply you with 520W of total power draw before it has a hard time.

if you give me system specs, i can calculate you max power draw at load. that will tell you if its the power supply or not.

i need to know:

model of cpu

Size of RAM sticks and how many

how many HDDs/SSDs you have

and how many system fans you have(this includes the fans on your cpu cooler)

scratch those. just these two
 
#22 ·
Quote:
Originally Posted by PCSarge View Post

it crashes with the gpu because the gpu is drawing an extra 250-300W from that PSU to power itself. without the gpu your lucky if your system pulls 200W.

in short - more stress on PSU to provide power is causing system to lock up. which im guessing means it is not up to supplying the power demand of your gpu.

your power supply's max rating is 650W. if you draw close to or over that. it has an internal safety circuit to shut itself down before it catches fire.

power supply rating are what effect that. 650W is the Peak Load of that unit. it cannot sustain that forever without failing. bronze rated power supplys are only good for around 80% of thier rated capacity which means your unit can reliably without a fuss. supply you with 520W of total power draw before it has a hard time.

if you give me system specs, i can calculate you max power draw at load. that will tell you if its the power supply or not.

i need to know:

model of cpu

Size of RAM sticks and how many

how many HDDs/SSDs you have

and how many system fans you have(this includes the fans on your cpu cooler)

scratch those. just these two
But why this happening now, and never before.

The first day when my PC shutdown happened when I was playing game. I guess, there is something wrong with my GPU I guess.

Asrock Z77 extreme 4
i5 3570k
Sapphire HD 7950 3GB GDDR5
Samsung 850 Pro Evo 500GB
Wester Digital Black Caviar 4TB
Segate 1TB (5200RPM)
Cooler Master GX650W Bronze

I am currently running on stock CPU cooler comes with Intel processor. I have 2 front fans (240), 1 back fan (140).
 
#24 ·
I feel like it is going to end up being a case of Occam's razor. I hope for your sake I am wrong, video card prices are ridiculous right now
frown.gif
 
#25 ·
Quote:
Originally Posted by Bad5ector View Post

I feel like it is going to end up being a case of Occam's razor. I hope for your sake I am wrong, video card prices are ridiculous right now
frown.gif
I know. Hope my GPU is a-okay. Waiting for my friend to return so that I can test my psu and gpu.
Quote:
Originally Posted by whitrzac View Post

Because something is failing.

You have 2 options. Find a NEW 600w+ power supply to test with, or test the video card in a different PC that has a known good power supply.
Why do I need a new 600w though?
 
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