Re:Radeon HD 3850, and what is your stable overclock limits? - MVKTech Support Forums :: mvk.tech :: NVIDIA GeForce GTX 280 GTX 260 9800 GX2 9600 GT 8800 GTX ATI Radeon HD 4870 HD 4850 HD 3870 X2 HD 3850 2900 XTX

Forums

TreatYouGoods
Camera Digital Cameras Video Cameras

Main Menu

Getprice Comparison
Digital Cameras

Latest Downloads

Nov.30	Galaxy 9800GT PCIe 512MB - Rev 01
Nov.30	XFX 9600GT (X3) PCIe 512MB - Rev 04
Nov.30	XFX GTX260 (BL) PCIe 896MB - Rev 02
Nov.23	ASUS 9800GT+ (MX) PCIe 512MB - Rev 01
Nov.23	Galaxy 8500GT (LP) PCIe 512MB - Rev 01

Price Comparison
Comparison shopping Laptop Tomtom Digital Camera Mobile Phones Ink cartridges VOIP Shopbot NZ Shopbot ZA

Top Downloads

592377	Omega WinXP2k v1.6693
320613	Omega WinXP2k v1.4523a
229362	nvFlash v5.13
224100	NiBiTor v3.2
164099	RaBiT v2.2.1

MVKTech Support Forums

home | post reply | threaded view | help

Boardwalk :: Forum List

ATI Graphics Cards

ATI Radeon Series

DaHelios
User

Fresh Boarder

Posts: 5

Karma: 0

Radeon HD 3850, and what is your stable overclock limits? - 2008/02/20 22:26 What is the highest clock any of you guys have heard of stable on the Radeon HD 3850? I want to know the limit with the voltages used. I have made my own BIOS and flashed my Sapphire Radeon HD 3850 512MB to 1.22V and 800MHz core and 1900MHz memory clock speed. And it still runs cool under load with many heatsinks and Zalman VF900 full throttle, still silent though.

| | The administrator has disabled public write access.

Mavke
Admin

Admin

Posts: 14226

Karma: 359

Re:Radeon HD 3850, and what is your stable overclock limits? - 2008/02/20 23:06 Well I only had a PowerColor Radeon HD 3850, actually the Xtreme version with 512MB memory that did 770/1960MHz stable with no tweaks of the voltages, so meaning with the default BIOS coming with the card. Which means simple overclocking via software and that was it.

| | The administrator has disabled public write access.

DaHelios
User

Fresh Boarder

Posts: 5

Karma: 0

Re:Radeon HD 3850, and what is your stable overclock limits? - 2008/02/20 23:19 Thank you for the quick response. After a little more tweaking, I got 850MHz core and 1900MHz memory at 1.274V stable but I am seeing if I could push it to 880MHz core and higher memory later but should I upload any of my BIOS's or do you guys not need the ones with a certain cooler required, upgraded cooling?

| | The administrator has disabled public write access.

Mavke
Admin

Admin

Posts: 14226

Karma: 359

Re:Radeon HD 3850, and what is your stable overclock limits? - 2008/02/20 23:30 Great result mate, and 850MHz is really nice, though indeed the memory might be able to reach maybe a bit higher. All depends a bit what kind memory Sapphire has put on the card, but if it would be 1.0ns then you should be able to reach 2000MHz and maybe higher. Related to the BIOS's you can attach these on this thread for other but you need to clearly state what has changed on them. Although these won't come on our downloads section as that is only for original BIOS to make sure we have the BIOS if an upgrade would go wrong. But on our forums we do share a lot of tweaked BIOS, so please share what you got so far.

| | The administrator has disabled public write access.

DaHelios
User

Fresh Boarder

Posts: 5

Karma: 0

Re:Radeon HD 3850, and what is your stable overclock limits? - 2008/02/21 00:05 Thanks for the encouragement on the memory and to bad I cannot tweak memory latency. Please find below my stable BIOS file for a Sapphire RadeonHD 3850 512MB having a Zalman VF900 cooler with Arctic Silver 5 grease.
Sapphire Radeon HD 3850 512MB Tweaked Edition
- Voltage : 1.274V
- Core : 850MHz
- Memory : 2000MHz effective

File Attachment:
File name: Sapp-385-512mb-oc-helios.rom
File size:62464 bytes

| | The administrator has disabled public write access.

Mavke
Admin

Admin

Posts: 14226

Karma: 359

Re:Radeon HD 3850, and what is your stable overclock limits? - 2008/02/25 23:24 Excellent mate, can you also as a reference to this attach your original BIOS of that Sapphire Radeon HD 3850 512MB graphics card, as that is always good to have a copy of it available.

| | The administrator has disabled public write access.

cyberlon
User

Junior Boarder

Posts: 24

Karma: 1

Re:Radeon HD 3850, and what is your stable overclock limits? - 2008/03/20 11:19 Do you get any black screen when torturing it? I am using FurMark rending benchmark to test and still keep getting black screen while overclocking. I am using an XpertVision Radeon HD 3850 Sonic with 256MB of GDDR3 memory by the way...

| | The administrator has disabled public write access.

Mavke
Admin

Admin

Posts: 14226

Karma: 359

Re:Radeon HD 3850, and what is your stable overclock limits? - 2008/03/20 19:15 cyberlon wrote:
Do you get any black screen when torturing it? I am using FurMark rending benchmark to test and still keep getting black screen while overclocking. I am using an XpertVision Radeon HD 3850 Sonic with 256MB of GDDR3 memory by the way...
Well if you overclock too much and stress the card too much that it indeed something the ATI based cards do, they protect themselves and shutdown leaving only a blank screen. I have seen that with already several cards...

| | The administrator has disabled public write access.

Boardwalk :: Forum List ATI Graphics Cards ATI Radeon Series

Joomlaboard Forum Component 1.1.2 Stable
Two Shoes M-Factory

Compare Prices
Shopbot.ca LCD TV GPS Digital Cameras Mobile Phones Laptops LCD Monitors MP3 Players Appliances

Online Casino

New Reviews

	Gainward GeForce GTX 260 Standard Version
	Gainward BLISS 9800 GX2 Dual-GPU Version
	PowerColor Radeon HD 3650 Xtreme Cooling
	Dragon Lasers Hulk Green Laser Technology
	Gainward BLISS 8800 GT 1GB Golden Sample

New Previews

	NVIDIA GeForce 9800 GX2 Dual-GPU Version
	PowerColor Radeon HD 3850 Xtreme Edition
	PowerColor Radeon HD 2600 XT 256MB Card

Support Us

Support MVKTech in making a small donation:

MyPMS Professional

Inbox
	You have 0 new message(s).

Joomla! is Free Software released under the GNU/GPL License.