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OcUK / Triplex HD3850 owners

15% performance hit apparently on 4x. Also, I'm potentially missing out on another 600Mhz+ on my CPU OC and god only knows what my RAM will hit, can't get it anywhere near stock with the ASrock 4Core!!!
 
Price you pay for versitility.

Good stepping stone boards tho, got one in the Mrs's rig, works a treat, has let us upgrade her rig from AGP/DDR/P4 to PCI-E/DDR2/Core2 over time.

What mobo you looking at replacing it with?
 
Are you overclocking it with any software or just going straight in with a BIOS flash?

Also, when I first bought the card I couldn't find any Triplex BIOS' at all but the other day I saw that Triplex was recently added to the manufacturers list on a BIOS depository site (can't remember what it was called) but they just have the 3870XT, but maybe it's a sign that we will be able to get a new Triplex 3850 BIOS soon.
 
I'm using the latest Beta of ATITool - I don't like to use the BIOS to do anything. I prefer software clocking and hardware mods.

Is the BIOS repository you're talking about the one in my previous post? I haven't used the Triplex BIOSs there because they are the same version (70) as mine and I need 73 or later (at least I've found only the 73 and 76 BIOSs allow clocks above 860Mhz).
 
No, It was mvktech.net or mkvtech.net or something similar.

IMPORTANT (I think) - If you click the BIOS file details from Techpowerup Triplex 3850 (Qimonda), it shows that there are 4 clock states but the voltage in any of them never goes above 1.214V and I assume that this is a stock BIOS that someone has uploaded as this would be an 'undervolt BIOS mod file' if it were user made, no? That is if you are correct in saying the 3D volts are 1.32, are you sure of this??

EDIT - Seen this ASUS one, qimonda chips, stock clocks, but with higher vcores:
http://www.techpowerup.com/vgabios/8135/Asus.HD3850.512.071213_1.html
dunno if you've already tried it?
 
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Re: vGPU - yes I'm sure it's at 1.32v as I've measured it with a multimeter. It is always 1.32v in 2D or 3D or whatever.

Re: Asus BIOS - It's version 68 so will have the 860 limit.

Thanks for the MVKTech link - I'll try some of those.
 
Are you sure you're measuring the correct points? if so where are they?

Also, I take it you were on stock BIOS when you measured?
 
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Jimbo Mahoney said:
Re: Asus BIOS - It's version 68 so will have the 860 limit.
Click to expand...

Was the memory still flaky at stock with this? Just wondering as this card also uses Qimonda chips....

I've ruled out temps (for the GPU anyway) as the problem for my OC. Just put two Vantec Tornado 80mm fan's over my card (v.loud!), load temp never breached 45'C but the GPU flaked out at around 785Mhz on the core. I want to measure my voltages on my card as I don't think mine are as high as yours - could you tell me the points to measure?
 
Yes I'm measuring the correct points. There are three large capacitors to the left of the core (looking from the GPU side with the PCI plate on the left). On the reverse of the card, you can reach the six legs - 3 are ground, 3 are Vcore.

I've measured them on all sorts of BIOSs and I'm pretty sure this card does not change Vcore in 2D or 3D or with different BIOSs. It's always 1.32v.

Cairnsey said:
Was the memory still flaky at stock with this? Just wondering as this card also uses Qimonda chips....
Click to expand...

I don't think I bothered with that BIOS because it will still have the 860 clock limit.

Cairnsey said:
load temp never breached 45'C but the GPU flaked out at around 785Mhz on the core. I want to measure my voltages on my card as I don't think mine are as high as yours
Click to expand...

Well 810 is not that much higher than your 785. Could be down to luck of the draw, as well as my GPU being at 35'C ish on water at that speed.
 
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Because I've volt modded it. I can hit almost 1Ghz, although I'm now limited by OCP since the card shuts down with ~ 1.55v. I'm working on removing that.

It's frustrating having the option to go to 1Ghz on the core, but leave the memory at default (newer BIOS) OR be limited to 860 on the core but go around 1Ghz on the memory (default BIOS).
 
OCP is over-current protection. OVP is over-voltage. Sometimes they appear to be the same thing, other times a card has both, but I must admit I'm no expert.

Basically, when I give the core ~1.55v, it shuts down by stopping power to the core, reading 0v
 
Is it just a case of editting BIOS to remove that? I'm very interested in trying to get clocks of 1000/2000 now :p

Few questions (sorry if I'm getting on your nerves!):
Is there any chance you could link me to the site where you got the vmod from?
What BIOS are you currently running now?
What are the performance gains with the core at ~1Ghz albeit with stock mem? Can we get some 3D06 benchies comparing stock and your highest core clock?
 
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