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post #1401 of 1467 (permalink) Old 06-13-2019, 07:47 AM
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Quote: Originally Posted by drmrlordx View Post
Please let us know how well that performs! I wish there were more all-copper options since all the nickel everywhere . . . ugh. Nevermind. Anyway I'm about to pull the trigger for a WC setup for a 3900x + my current Radeon VII, but if the Barrow block can perform as well as the Bykski block (and without QC issues) then I may go Barrow instead. It seems cheaper, too.

I'm really disappointed in the EK block. I was all set to get one, but . . . meh. The performance is not there.
Will do. Will likely be next week, as - as per usual - I continually find I need more things for the build than I realised I needed.

Latest is that the TORX screws on the beack of the RVII backplate are below T10 (not sure which), so need to order a new screwdriver set.

I'm going to try putting Gelid GP Extreme 2mm pads on the back of the PCB around the VRM and GPU/HBM areas to try to transfer heat to the backplate, and see if that makes a difference.

Also, I'm assuming the thermal pads that Barrow ship with the blocks are at the lower end of performance, and the VRMs might benefit from exchanging it with the GP Extreme? Anybody know exactly what they're using?

Last edited by pmc25; 06-13-2019 at 08:07 AM.
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post #1402 of 1467 (permalink) Old 06-13-2019, 10:21 AM
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Quote: Originally Posted by pmc25 View Post
Will do. Will likely be next week, as - as per usual - I continually find I need more things for the build than I realised I needed.

Latest is that the TORX screws on the beack of the RVII backplate are below T10 (not sure which), so need to order a new screwdriver set.

I'm going to try putting Gelid GP Extreme 2mm pads on the back of the PCB around the VRM and GPU/HBM areas to try to transfer heat to the backplate, and see if that makes a difference.

Also, I'm assuming the thermal pads that Barrow ship with the blocks are at the lower end of performance, and the VRMs might benefit from exchanging it with the GP Extreme? Anybody know exactly what they're using?
they are T8.
With a continuous 285-300W load on the AsRock VII I have, using the blkski pads that came with the block (grey color, 1mm I think - likely no where near fuji or gelid) the VRM maxes out in the mid 40s for VRM#1, VRM#2 is mid 30s. As you know, it's that on-die junction temperature that's the red flag (and hopefully not the proverbial canary-in-the-coal mine).

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Last edited by Jpmboy; 06-13-2019 at 10:25 AM.
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post #1403 of 1467 (permalink) Old 06-13-2019, 01:18 PM
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anyone running some hardcore power thru their cards to check blocks?
from what i see the norm is always a ~30c delta between hotspot and die, i can get above this with PP mods and running 4k with the card pulling 400w.

but at normal clocks and volts these blocks perform the same
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post #1404 of 1467 (permalink) Old 06-13-2019, 01:40 PM
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Hey all. I just got a Radeon VII and waterblocked it (EK Vector w/backplate). 24/7 Full load (mining experiment) at stock speeds with slight undervolt (1000mv) GPU is 40C with junction right around 59-60C in very warm ambient (summertime in south Texas), easily about 90F+ in my garage where the computer lives. The card lives in its own loop with with 780mm of rad so that obviously helps.

Same settings and ambients had this thing at up to 89C core and 110+ junction with stock cooling and it seemed to start to throttle a bit.

Seems to be consistent with other results I have read in this thread. Just wanted to throw out some more data for you guys.

Last edited by Phobos223; 06-13-2019 at 01:48 PM.
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post #1405 of 1467 (permalink) Old 06-13-2019, 06:10 PM
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Quote: Originally Posted by MSIMAX View Post
anyone running some hardcore power thru their cards to check blocks?
from what i see the norm is always a ~30c delta between hotspot and die, i can get above this with PP mods and running 4k with the card pulling 400w.

but at normal clocks and volts these blocks perform the same
what/which PP mods are you referring to?
yeah, ~ 30-ish C delta, hot spot is running mid 70s. System is running universe, and milkyway. And encoding sec cam video from 3 cameras.
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Last edited by Jpmboy; 06-13-2019 at 06:22 PM.
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post #1406 of 1467 (permalink) Old 06-14-2019, 02:50 AM
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Quote: Originally Posted by MSIMAX View Post
anyone running some hardcore power thru their cards to check blocks?
from what i see the norm is always a ~30c delta between hotspot and die, i can get above this with PP mods and running 4k with the card pulling 400w.

but at normal clocks and volts these blocks perform the same
My system was topping out at ~500-550w from the wall when overclocked to 2200MHz 1293mv vs ~350w at stock but it was only running ~2100MHz due to power limits throttling the card despite 99% power limit.
Junction was ~25c above GPU temp on average but peaked 29c higher at 55c
This was using a old silver CPU waterblock Storm G5.
https://www.overclock.net/forum/67-a...l#post27975726
In then end I found that lower v and lower set clocks was actually faster due to power limits.
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Last edited by Dasa; 06-14-2019 at 02:59 AM.
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post #1407 of 1467 (permalink) Old 06-15-2019, 08:48 AM
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Quote: Originally Posted by Jpmboy View Post
what/which PP mods are you referring to?
yeah, ~ 30-ish C delta, hot spot is running mid 70s. System is running universe, and milkyway. And encoding sec cam video from 3 cameras.

1293+

most i run is 1.250v with 41% powerlimit helps keep the clocks stable
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post #1408 of 1467 (permalink) Old 06-18-2019, 08:09 AM
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Quote: Originally Posted by Dasa View Post
My system was topping out at ~500-550w from the wall when overclocked to 2200MHz 1293mv vs ~350w at stock but it was only running ~2100MHz due to power limits throttling the card despite 99% power limit.
Junction was ~25c above GPU temp on average but peaked 29c higher at 55c
This was using a old silver CPU waterblock Storm G5.
https://www.overclock.net/forum/67-a...l#post27975726
In then end I found that lower v and lower set clocks was actually faster due to power limits.
wish i had a low stock voltage card to play with mines is 1.18v
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post #1409 of 1467 (permalink) Old 06-18-2019, 03:09 PM
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Quote: Originally Posted by MSIMAX View Post
wish i had a low stock voltage card to play with mines is 1.18v
I thought my stock v was high I hadn't seen any at 1180mv mine is 1134-1142mv seems to swap between the two.
It didn't like undervolting very much ether becoming unstable around 1050mv at 1800MHz

High stock v doesn't seem to mean the card wont scale well with more v if you can keep it cool but it probably does mean it will hit it's power limits at a lower clock than other cards.

Last edited by Dasa; 06-18-2019 at 03:16 PM.
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post #1410 of 1467 (permalink) Old 06-18-2019, 03:14 PM
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Quote: Originally Posted by Dasa View Post
Quote: Originally Posted by MSIMAX View Post
wish i had a low stock voltage card to play with mines is 1.18v
I thought my stock v was high I hadn't seen any at 1180mv mine is 1134-1142mv seems to swap between the two.
It didn't like undervaluing very much ether becoming unstable around 1050mv at 1800MHz
My stock is 1137 or 1138 depending on its mood? I can either undervolt and run 2000Mhz/1200Mhz @ 1090mV w/ 50% PL or my current overclock. Think I might go back to undervolting for temps. Ever since I installed the 9900k I see the hotspot peak to 75C with my waterblock.

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