The RX 6000 series Owners' Club

[pavle]

By the way do you guys think that the card can handle the 12V current of 4x 70mm DELTA AUB0712VH @ 0.56A each or 0.60A max or 7.2W max for 2.4A & 28.8W of fan power....

I don't think the card's fan circuit is good enough for 4 Deltas, would have to check specifics of the fan controller circuitry... Perhaps connect them unregulated on molex connector either on 5V (red+ black-) or on 7V (yellow+ red-) to avoid noisiness.

 

[chris189]

@pavle Surprisingly enough they aren't that noisy. I wish I had the rest of my cables to hook up the rest of the fans.

Stock fans = 12v 0.35a = 4.2w each for 3 total at 12.6w total 1.05a

Delta fans = 12v 0.56a = 6.72w each for 4 total at 26.88w total 2.24a

 

[pavle]

I see, well that's still more than twice the original amperage, I'm not sure AMD or Gigabyte left that much reserve on the fan controller circuitry. One molex connector will suffice for those 4 deltas, but you need to make the connections from it to + and gnd to all 4 fans. You'll need some wire and old snippets from resistors and/or other components that are just the right size to fit into fan connector and a soldering iron.

 

[chris189]

@pavle If only I was able to solder where I stay now. I can however buy a PWM 4-way splitter to Molex for all 4 fans.

So your saying I should not even try it because it could likely burn out the fan controller? That sure would suck... lol

 

[pavle]

I tried searching for the fan controller but found none, haven't gone in-depth though but I'd say molex is a better idea.

 

[chris189]

Thanks. Here I found this...

 

[pavle]

This one probably has 12V. Depending on noise level you could rearrange those two connections to lower voltages to less noise, should still keep the card cool.

 

[chris189]

@pavle The card needs 12v continuous under load to keep the hot spot under control.

Can you see the fan controller chip with this picture?

 

[pavle]

Looks like the fan controller is the little 4-pin chip on the right side of the fan connector with 2 transistors below the chip (black squares with 3 pins soldered to the board) but I could be wrong.
Anyway if those transistors are for fans I don't see them capable of passing much current...

 

[chris189]

Well I hooked it all up anyway because I couldn't bare to wait. It's working fine but they don't quite achieve maximum rpm. Just about 6,000 rpm max vs 6,150 rpm with a single fan hooked up but it's all good.

It dropped my hot spot in 3dmark Time Spy by -21°C, from 106°C to 85°C which is amazing. It's also amazing how hot the RAM gets on the GDDR6.

AMD Radeon RX 6600 XT video card benchmark result - AMD Ryzen 7 3700X,ASUSTeK COMPUTER INC. ROG STRIX X570-I GAMING (3dmark.com)

Modded Gigabyte Eagle AMD Radeon RX 6600 XT 4.5Ghz 3700X 4K ULTRA Rise Of The Tomb Raider - YouTube

 

[pavle]

Sweet! Looking good and cooling fiercely!
But wow, 6000RPM, mighty fine if the noise isn't excessive.

 

[fullinfusion]

I still want a reference card but even AMD(dot)com sells the 6700XT for over a grand.

 

[Dropler]

Hello everybody. I was wondering if anybody could help me with some information about thermal pad thickness on the Red devil 6900 xt. Im going back to air cooled and the old thermal pads have dried completly so i have to apply some new ones. I have purchased some Thermal grizzly minus 8 1.5mm pads but i discovered there is a couple chips that need a thicker pad. Do anybody know which thickness is required for the chips with red circle around? The aircooler is not the same height here as the other spots.

 

[chris189]

@Dropler I would measure the heatsink, the difference between the core contact area to those spots you circled with a simple ruler in millimeters.

For me, right now I used something like 0.5mm pads all around & my memory is running a tiny bit warm hitting 80°C overclocked & over volted when before I think they hit 66°C on thick pads so today if you encourage me I'll take the card apart again & fix the memory pads.

Thanks

 

[pavle]

Chris, please post the results of the thicker pads, are they helping or is more material just acting as an insulator and temps. are the same?

 

[Taraquin]

Consider buying a RX 6600\XT for a budget build, but prefer afterburner for undervolt over adrenaline (stable profiles on RX 480, 580 and 5700XT kept resetting), is it possible to use afterburner for curve editing?

 

[chris189]

I'm having major thermal issues now all of a sudden, I was thinking my vRAM was a little hot by 10°C or so I decided to take it apart to check it out & ever since it's been running too hot.

I undervolted the vRAM from 1350mV down to 1100mV & its stable at stock memory clocks / fast timings & much cooler module's.

Why is it so hot? How do I fix it?

This screenshot is prior to now with the thicker pads but now I prefer the appearance of the thinner pads so I'm using the thinner pads on the vRAM.

So I found out the PCB got stretched from the shim & caused it to not contact at all without a shim installed now. So I decided to try out my AMD Radeon RX 480 X-Clamp on my Gigabyte Eagle AMD Radeon RX 6600 XT & it fits & dropped temps by 23°C on the Hot Spot but the Hot Spot is still hotter than before, but i think it will take some time for the X-Clamp to flex the PCB back to conformity. What are your thoughts?

PS - Where can I buy a RX 480 X-Clamp since I need to buy a couple.

Thanks

Here's my POST-INITIAL RESULTS, about 5-15min after initial results. Already the PCB is conforming bros!

So it was working good until I restarted & now it won't post or get detected on a Gigabyte GA-A55M-S2V with AMD A6-3670K or on my AMD Ryzen 7 3700X rig. I pulled it apart yet again & booted up without the heatsink to see if the core got hot & it got hot like it was working so idk guys. Why isnt it getting detected? It's not shorting out or maybe the card is bad now idk.

 

[pavle]

Well that's sad. With long and heavy cards I always "hang" the right end with some zip-ties to my case (e.g. my GTX980 in pic.) to bend PCB as little as possible.
Regarding to pads I'd say, they can be considered plastic/insulator (though they aren't) so have them as thin as possible, as long as all components that got them properly touch the heat-sink.
Those X-clamps have been used on ATI cards since Radeon X1800 XT if it wasn't on your card originally, just leave it as it is and take care of PCB so it's near straight.

 

[chris189]

My card has two problems, it won't post video & the core doesn't touch the heatsink when tightened down all the way. So I put it back together stock & started the RMA process. I hope it gets repaired or replaced because I was loving the RDNA 2 performance.

 

[Butanding1987]

My card has two problems, it won't post video & the core doesn't touch the heatsink when tightened down all the way. So I put it back together stock & started the RMA process. I hope it gets repaired or replaced because I was loving the RDNA 2 performance.

I can't believe you're RMA-ing your card after fu**ing it up and boasting about improvements earlier.

 

[chris189]

@Butanding1987 I bought the card from some guy who mined on it (the guy said it worked perfectly though & didn't mention it was damaged)& damaged the card before I bought it plus it was working perfectly(minus the occasional flicker & screen corruption), until I restarted & that's all she wrote bro. It was working fine, never overheated or anything before restarting. It was hitting 55-60°C on the core & about 80°C on the hot spot before I restarted, then I restarted & it didn't post anymore. So it's not my fault, it's the cards fault bro.

 

[pavle]

Oh my so it was use for mining? Nasty and that it even flickered. Well I hope you get to RMA it because every mining card has a tired memory and prone to failure, despite some saying it's ok to buy a miner card (it would be good if memory wasn't at tight timings and never heated up to more than 50°C).

 

[ThrashZone]

Hi,
Nice they allow warranty transferring.

 

[GoldenX]

Got a https://www.sapphiretech.com/en/consumer/pulse-radeon-rx-6500-xt-4g-gddr6

The good:

• Got it for cheap, and boss paid for it.
• Looks nice.
• Sips power.
• Zero RPM fans at idle.
• Good heatsink, low noise and temps under full load.

The bad:

• Vega video decoder, it loses frames watching Youtube. 5 years and they never fixed this sh*t.
• Low performance when bandwidth gets saturated.
• Related to the previous point, performance is only consistent if you give it all the goodies, PCIe 4.0 and SAM.
• Ray tracing performance is as bad as a 1660 SUPER, a card that has no RT units.

The Ugly:

• Clock management is complete total useless trash.

 

[chris189]

Thanks. So do you know where I can buy a RX 480 X-Clamp? The card needs one bad when I get the new card in to get uniform core pressure on the heatsink to avoid damaging the core with too hot of a Hot Spot. I'm going to baby the card when I get it back from RMA. I may not even open it up at all & just leave it stock & just undervolt it possibly, it depends...