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Help me fix my 7970 - UPDATE: The Soldering is real - Page 3

post #21 of 33
Quote:
Originally Posted by NaXter24R View Post

Ok, some update. I've installed ubuntu and i've tried heaven benchmarks without drivers, don't works.
I've tried a sw called "GpuTest_Linux" and it shows some triangle in a window but without GPU-Z i can't tell if it's the CPU or GPU that works. The only thing i know is that the CPU was almost flat out, but it's a C2D E8300, it will bottleneck a 7970 in every way possible.
After that i was trying to install the AMD drivers but, maybe i'm dumb, but i can't, i double click and nothing, i really don't know nor undertand how to install them, moreover, i'm without internet down in the basement wheee.gif
The driver I don't have much experience with, I only know about how to get it when connected to the internet. and was the triangle showing Red blue and green on each corner? If so, thats a OpenGL stresstest.
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post #22 of 33
Thread Starter 
Yep, that onehttp://www.geeks3d.com/gputest/

Still, even if it shows 90fps the CPU was 100% so i don't know anything about the GPU
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post #23 of 33
Thread Starter 
After driver install on Ubuntu it's the same, no display after boot... Soldering is becoming a thing...
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post #24 of 33
Thread Starter 
I've called a repair shop, he told me that "soldering 12 modules i 95% killing the VGA".
I'm a brave man, and i can't stand a piece of silicon to defeat me. I'm going for soldering. In theory, that module is H5GQ2H24MFR-R0C but there is the H5GQ2H24MFR-T2C as well, and that is confusing me
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post #25 of 33
Thread Starter 
Oooookeeeeey. Now it's war. I want to fix this thing, hard, as hard as i can. I can't stand a piece of electronics defeats me.
There are several type of memory modules, the most common one are:

H5GQ1H24AFR-R0C --> density 1Gb in 32Mx32, rated 6Gbps and i don't know any voltages.

H5GQ2H24MFR-R0C --> density 2Gb in 64Mx32, rated 6Gbps 1.6v

H5GQ2H24MFR-T2C --> density 2Gb, in 64Mx32, rated 1.5v

Datasheet: http://pdf.datasheet.directory/datasheets-0/sk_hynix/H5GQ2H24MFR-T2C.pdf

Here's the funny thing, this card wants to troll me. Why? Well, that's the card





Nothing strange uh? They end in "AFR".

Now look carefully:





So now you are maybe thinking "yes but you mess the bios".
No. I didn't. XFX sent me a good one, that happens to be the one i was using, number 015.022.000.004.000000, here's TPU's page: https://www.techpowerup.com/vgabios/131977/xfx-hd7970-3072-120715

And reading the specs:
Quote:
Memory Support
3072 MB, GDDR5, Autodetect
3072 MB, GDDR5, Hynix H5GQ2H24MFR
3072 MB, GDDR5, Elpida EDW2032BBBG
3072 MB, GDDR5, Hynix H5GQ2H24AFR

So i have 2 options:
MFR: they cost 4€ each, more or less, so for 13 of those (i want to be sure, i i get 12, one will be DOA, i'm sure, because i'm lucky)
AFR: they cost 2€ each, more or less, but they are in contrast with that sw.

Also i've found this: https://www.skhynix.com/static/filedata/fileDownload.do?seq=267 It's a download link with how to read Hynix modules.

According to that pdf files, the last 3 letters stands for:

A F R
A: 2nd die generation
F: FGBA DPS, single die package
R: Lead Free

M F R instead is:
M: 1st die generation

Also, looking at those numbers, just before "AFR" there is a 24 that stands for:
2: organization x32
4: number of banks= 16

So, in theory, they are the same damn module, but why Hynix change his mind?
I'm sorry if i'm writing a lot but i need someone who can tell me if my way of thinking is good or not.

Wrapping it up, whatever chip i'll go for, 1sr or 2nd generation, until i'm using those 2gb model so with the number 4 with 16 banks and R0C at the end that means 3.0GHz, i'm safe right?
Even because most of those modules are old (Elpida ones costs more than 6€ for example and they are out of stock)...

Bonus image, this is the "bios switch"

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post #26 of 33
Thread Starter 
Live from the basement, last check, my memory is f...



Just over 250mb.

Here is a GTX 970 for comparison

video_memory_stress_test.png
Edited by NaXter24R - 6/14/16 at 1:59pm
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post #27 of 33
GL on getting this thing working, although if its damage to the core instead of the memory you're hosed.
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post #28 of 33
Thread Starter 
Quote:
Originally Posted by Cyrious View Post

GL on getting this thing working, although if its damage to the core instead of the memory you're hosed.
Don't say that biggrin.gif

Yes i was thinking about that but i'm pretty confident the core is good. As i said, i got this card for free and i've found some new vram chips for 30 bucks so why not try?

Moreover, if it's the core i think that won't post at all or display some image. Instead this card is still displaying image with no artifacts. I've also look at the bios, boot clock is 925mhz @1.175v, so if it can do that without crashing, i'm pretty confident the core is good.

Otherwise i will have 30 bucks less and a cool paperweight.

BTW, if you know some stress thest for the core that do not use drivers or a tons of memory i can try that, no problem thumb.gif
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post #29 of 33
Quote:
Originally Posted by NaXter24R View Post

Don't say that biggrin.gif

Yes i was thinking about that but i'm pretty confident the core is good. As i said, i got this card for free and i've found some new vram chips for 30 bucks so why not try?

Moreover, if it's the core i think that won't post at all or display some image. Instead this card is still displaying image with no artifacts. I've also look at the bios, boot clock is 925mhz @1.175v, so if it can do that without crashing, i'm pretty confident the core is good.

Otherwise i will have 30 bucks less and a cool paperweight.

BTW, if you know some stress thest for the core that do not use drivers or a tons of memory i can try that, no problem thumb.gif
Well, there's more than one thing on the actual GPU that could go bad that allow for good basic output, but nothing more than that.

And have you tried cleaning up the crap around and on the GPU? If thats conductive/capacitive it could throw things off a bit.
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post #30 of 33
Could try baking it. Ive seen some 7900 series cards with some serious bend to them, enough to damage the solder joints.

You could try editing the BIOS with lower memory/core speeds. I have an old HD 2900 XT that has to have the memory dropped by ~100mhz to work properly anymore.
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