HD 7850 "Goliath" V2

[Don Karnage]

Just the test fit. I haven't even started leak testing yet. Results in a few hours

 

[SickBeast]

Cool. You're really going all out with the cooling, Don.

 

[Zebo]

Why do you only have heat sinks on half the VRMs? This may effect OC.

 

[SickBeast]

I wonder if OP will take the vcore right up to 1.3v and try for 1300mhz on the core...

 

[badb0y]

Op will surely deliver

 

[chronochime]

Op will surely deliver

That reminds me of how people talk on 4chan :whiste:

 

[bxcloud]

Doesn't the bios throttle at 1.3mv? I had mine at 1300mhz and 1.230mv and it throttle the gpu.

 

[SickBeast]

Doesn't the bios throttle at 1.3mv? I had mine at 1300mhz and 1.230mv and it throttle the gpu.

Yeah apparently Powertune can kick in but you can up it by 20% in the drivers.

 

[Don Karnage]

My core just sucks. Load temps at 1.295v are 34C and still cannot do 1300 core. I got a lemon

 

[blastingcap]

>45% overclock is a lemon?

 

[SickBeast]

My core just sucks. Load temps at 1.295v are 34C and still cannot do 1300 core. I got a lemon

Good try.

How high can it go?

 

[Don Karnage]

>45% overclock is a lemon?

Was just playing BF3 at 1275 core and load temps spiked at 37C :biggrin:

I might not be able to bench at 1300 but BF3 is sweet at 1275

 

[Axon]

DK you've gotta get on OCN

 

[Axon]

that reminds me of how people talk on 4chan :whiste:

rules 1 and 2 wtf

 

[Silverforce11]

It's unlikely the core thats limiting. It's probably the VRMs and other board components. Put a fan to blow cool air over the card see if its helps, if it does, then its the other non-core components.

 

[T_Yamamoto]

DK you've gotta get on OCN

Most times upgraded in one momth

 

[MrK6]

It's unlikely the core thats limiting. It's probably the VRMs and other board components. Put a fan to blow cool air over the card see if its helps, if it does, then its the other non-core components.

Ding! Check the VRM temps. I'm guessing those little aluminum heatsinks are barely keeping them below throttle. You might have to throw a (bigger) fan on them or get some copper ones.

 

[Don Karnage]

Have a fan blowing directly over the VRM's. I'm 99.9% sure its OVP. When i load up heaven GPU usage goes to 99% then drops to 0 then up and down. I need some biod editing or something.

 

[Rvenger]

Well, you managed to get it past 7950 speeds... it may just be tapped out for additional power. I bet if you add anymore power to it you will smoke those VRMs and it wouldn't matter if you had the biggest heatsinks in the world on them, it would be too much current for the card to handle.

 

[MisterMac]

DonKarnage - just got my Asus DirectCU II 7850.


How do i enable the overvoltage trick?

Using 12.4 - assuming i should not do that?

 

[Don Karnage]

DonKarnage - just got my Asus DirectCU II 7850.


How do i enable the overvoltage trick?

Using 12.4 - assuming i should not do that?

Download Asus gpu tweak

 

[MisterMac]

Download Asus gpu tweak

Done.

Sort of new to OC'ing gpu.


I keep getting "driver crashes amd" - when trying for 1200 mhz.
wether on stock volts (1.21 for this card) or with 1.25 as an example.


Any tips?
Temps seem stay under 60 with furmark, with a custom fan profile.
(Loving the raven 03).

 

[Don Karnage]

Done.

Sort of new to OC'ing gpu.


I keep getting "driver crashes amd" - when trying for 1200 mhz.
wether on stock volts (1.21 for this card) or with 1.25 as an example.


Any tips?
Temps seem stay under 60 with furmark, with a custom fan profile.
(Loving the raven 03).

What card do you have? Do you have the "TOP"?

 

[MisterMac]

What card do you have? Do you have the "TOP"?

HD7850-DC2-2GD5

so... no :X


getting little more stable slowly by volting myself now at 1150.

Perhaps i'm impatient?

will try 1200 again.

 

[Don Karnage]

HD7850-DC2-2GD5

so... no :X


getting little more stable slowly by volting myself now at 1150.

Perhaps i'm impatient?

will try 1200 again.

1.21v should be enough for 1200 core. Hmm... Thats a lot more voltage then mine does at stock.