NVIDIA GeForce GTX 580 570 560 460 ATI Radeon HD 6970 6950 6870 5970 :: MVKTech :: On the Edge of Technology - Re:Sapphire Radeon HD 4770 Arctic Cooling is overclock friendly?

Home

Forums

Main Menu

Comcast cable deals

Computer Repairs
Computer Services Computer Monitor

Price Comparison
Compare prices Australia Laptop Tomtom Digital Camera Mobile Phones Ink cartridges VOIP Compare prices NZ Compare prices ZA

Latest Version

Jul.19

NiBiTor v6.03

Latest Downloads

Jul.19	NiBiTor v6.03
Jun.27	PLT GTX570 (SP) PCIe 1280MB - Rev 02
Jun.27	PLT GTX580 (DF) PCIe 3072MB - Rev 01
Jun.27	PLT GTX560 (DF) PCIe 2048MB - Rev 01
Jun.27	PLT GTX55T (DF) PCIe 1024MB - Rev 01

MVKTech Support Forums

home | post reply | threaded view | help

Boardwalk :: Forum List

ATI Graphics Cards

ATI Radeon BIOS

pal
User

Junior Boarder

Posts: 18

Karma: 0

Sapphire Radeon HD 4770 Arctic Cooling is overclock friendly? - 2009/10/02 13:05 Hello, I bought a second graphics card being the Sapphire Radeon HD 4770 and I got the Arctic Cooling version with blue PCB. Well this card has big problems with overclocking the memory. It looks like the BIOS have a bug. The card has a different voltage controller than the standard Sapphire Radeon HD 4770 with red PCB, but the memory controller is the same. Because of different voltage controller, no other BIOS is compatibile with it, except maybe the BIOS from the PowerColor Radeon HD 4770 PCS edition.

The Sapphire Radeon HD 4770 Arctic Cooling has the uP6201 chip which controls the GPU voltage and the uP6101 chip to control the memory voltage. So, if anyone has such a PowerColor Radeon HD 4770 PCS version can you please attach the BIOS on this thread? Thanks in advance.

| | The administrator has disabled public write access.

Mavke
Admin

Admin

Posts: 18465

Karma: 488

Re:Sapphire Radeon HD 4770 Arctic Cooling is overclock friendly? - 2009/10/02 14:22 pal wrote:
Because of different voltage controller, no other BIOS is compatibile with it, except maybe the BIOS from the PowerColor Radeon HD 4770 PCS edition. So, if anyone has such a PowerColor Radeon HD 4770 PCS version can you please attach the BIOS on this thread? Thanks in advance.

Could certainly be though it might be simplier to just check the voltage controller chip and confirm which one it is. I would somehow doubt that PowerColor would change the design just because of the cooler. From Sapphire I can understand as they tend to make their own design in certain cases as they have a special agreement with ATI to do so normally.

| | The administrator has disabled public write access.

pal
User

Junior Boarder

Posts: 18

Karma: 0

Re:Sapphire Radeon HD 4770 Arctic Cooling is overclock friendly? - 2009/10/02 16:45 Well the PowerColor Radeon HD 4770 PCS version has actually got the same voltage controller as the Arctic Cooling edition from Sapphire being the uP6201. I have both cards from Shappire and I tried many BIOS's on the Arctic Cooling version but these are from cards where it is was the standard L6788A for voltage controller and didn't work. My last chance is to find and try the original BIOS from this PCS version from PowerColor since it has the same voltage controller.

| | The administrator has disabled public write access.

Mavke
Admin

Admin

Posts: 18465

Karma: 488

Re:Sapphire Radeon HD 4770 Arctic Cooling is overclock friendly? - 2009/10/03 16:09 pal wrote:
Well the PowerColor Radeon HD 4770 PCS version has actually got the same voltage controller as the Arctic Cooling edition from Sapphire being the uP6201. My last chance is to find and try the original BIOS from this PCS version from PowerColer since it has the same voltage controller.

Okay, thanks for the update. So the question is do we have anyone who is visiting our website that has such a PowerColor Radeon HD 4770 PCS edition that would be so kind to attach on this thread the original BIOS of this graphics card? So if you do own this card, can youdo us a favor and share the original BIOS with us? Thanks in advance.

| | The administrator has disabled public write access.

erbilha
User

Fresh Boarder

Posts: 6

Karma: 0

Re:Sapphire Radeon HD 4770 Arctic Cooling is overclock friendly? - 2009/12/25 06:38 I have the same graphics card and I confirm what you said. Why doesn't someone who knows about voltage modification, pick in the original BIOS from the Sapphire Radeon HD 4770 blue PCB and try to modify the voltage to higher settings to manager more overclocking. I have my card only at 830MHz core and 3400MHz memory clock speed.

| | The administrator has disabled public write access.

Mavke
Admin

Admin

Posts: 18465

Karma: 488

Re:Sapphire Radeon HD 4770 Arctic Cooling is overclock friendly? - 2009/12/26 11:54 erbilha wrote:
I have the same graphics card and I confirm what you said. Why doesn't someone who knows about voltage modification, pick in the original BIOS from the Sapphire Radeon HD 4770 blue PCB and try to modify the voltage to higher settings to manager more overclocking.
And what do you think that will change? I am sorry to say but you can only make sense of the voltage logic within the BIOS when you know the voltage regulator used on the graphics card and it is not the BIOS that will limiting but that voltge regulator chip on the graphics card itself. If you have enough money to buy me such a card I would certainly be willing to check it out, if not you have the card and can do much yourself using RBEdit to see what is feasible. But in the end you will always be limited to what the voltage regulator chip can do or actually better can't do.

| | The administrator has disabled public write access.

Boardwalk :: Forum List ATI Graphics Cards ATI Radeon BIOS

Joomlaboard Forum Component 1.1.2 Stable
Two Shoes M-Factory

Compare Prices
Compare prices Canada LCD TV GPS Digital Cameras Smartphones Laptops LCD Monitors MP3 Players Appliances

LCD tvs

Comptoir Hardware

MyPMS Professional

Inbox
	You have 0 new message(s).

New Reviews

	Patriot Xporter Magnum 64GB USB Flash Disk
	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

Promotional Items

New Previews

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