*** Official Radeon HD5800 Series Overclocking Thread ***

[OC Nub]

kpablo, the x58-920 does a bit better at the same cpu speed, your cpu scored higher, also the 8x pci-e freq is hurting the score on the p55. One of my cards is a crappy clocker so unable to test with the same gpu clocks as you.

[OC Nub]

kpablo & OCnub - Those are some sweet rigs. WOW!~

Thank you.

[OC Nub]

Added some voltage to the cards and ran it again at 4ghz cpu, 1025mhz gpu and improved the score a bit.

[Unoid]

This is good to know as the MSI/ASUS overclock BIOS doesn't work on my XFX 5850, the prob is that with these BIOS, I get random crashes when I try to resume from S3 sleep mode. Crash happens about one time in ten (90% of the time sleep mode resumes normally). Any BIOS that trashes sleep mode is absolutely worthless, so I was forced to go back to the stock XFX BIOS. So far, no crashes with stock BIOS.
It's great that MSI AB now fixes the lame "can't overclock" restriction on the XFX boards, but there is still an important design defect with all 5850 boards: thermal downclocking. This "feature" doesn't do a damn thing except limit the OC and/or cause excessive irritating fan noise. It doesn't protect the card AT ALL. Maybe someone can find a fix for thermal downclocking, I figure I'm losing about 80 Mhz of GPU clock because of it.

Let me know if when using stock XFX bios and enabling that hidden feature in afterburner 1.4 lets you adjust voltage still and if you can still overclock past the stock limits.

[ezaleina]

hi.,i have sapphire 5850 card.,can someone tell me how to flash the unlocked bios.,n which bios is the best.,asus or msi..tq

[Blkout]

hi.,i have sapphire 5850 card.,can someone tell me how to flash the unlocked bios.,n which bios is the best.,asus or msi..tq

Shouldn't need to flash an unlocked BIOS anymore if you use Afterburner 1.4. It has a hidden feature to unlock the stock BIOS.

[ezaleina]

Shouldn't need to flash an unlocked BIOS anymore if you use Afterburner 1.4. It has a hidden feature to unlock the stock BIOS.

oh ok..tq bro blkout..

[Blkout]

oh ok..tq bro blkout..

I can't confirm this myself because I had already flashed my 5850's BIOS before Afterburner 1.4 came out. I guess I could flash them back to stock to check it, but I have no interest in doing so right now as everything is working just fine. I don't plan to flash them back to stock until I get ready to sell the cards. Just repeating what I've heard, there's a guide somewhere that tells how to unlock it in Afterburner.

[Lokinhow]

guys, I get a HD5850 XFX XXX

no problems running at this clocks, need 1.21v ("unlocked" MSI afterburner)



I think 1GHz+ is possible with 1.3v...

..but, powerplay doesn't work, so the only way to use higher clocks than CCC limit and keep the Powerplay working is flashing antother BIOS?

[Gaul]

CPU q9550 @ 4.4 GH + 5870 @ 1000/1300

[RedHOT]

[chad]

Diamond 5850 1050/1200 @1.27 volts

Q9550 4.1 @1.28 volts

GPU score 18124

[owikh84]

Sapphire 5850 @1000/1300, 1.25v

[zalbard]

Can anyone say anything about these BIOSes?
http://www.xtremesystems.org/forums/...d.php?t=240336

[lowdog]

Can anyone say anything about these BIOSes?
http://www.xtremesystems.org/forums/...d.php?t=240336

Default voltage increase perhaps; http://forums.guru3d.com/showthread.php?t=310411

Yet to be confirmed though.

[zalbard]

I was more worried if the unlocked BIOS version was new as well, and whether it was unlocked properly.
Someone is experiencing issues in the thread you linked.

[kpablo]

This vcards are getting better and better with the times!

Got Catalyts 9.11 Beta 5 Drivers and look now the differences:

3Dmark Vantage:

Catalyst 9.11 Official:


P27050
GPU 27432 points

-----------------

Catalyst 9.11 beta 5:


P27974
GPU 28680

http://service.futuremark.com/compare?3dmv=1665002

----------------

Crysis Warhead:

Catalyst 9.11 Official (with Dirt 2 hotfix)

Min: 31.59
Max: 68.14
Avg: 53.21

Catalyst 9.11 beta 5:

Min: 40.46
Max: 88.90
Avg: 70.50

--------------

PC used:
i7 920 @4.2
RAMs @2000MHz
RIIE

[OC Nub]

kpablo, very nice results.
Will give the beta's a try for sure.

[kpablo]

kpablo, very nice results.
Will give the beta's a try for sure.

The only bad thing i discovered about the 9.11 beta 5 is not reading well the sensor of the 2nd vcard in 2d mode... it does not recognize, until you run a 3d app, then when you go back to 2D mode, then does not work again...

Can't wait to test the improvements with official 9.12 drivers...

[[DANGERDAN]]

Is that real ?? 9.11 beta 5 so much faster than than the 9.11 full ??

[zshadow]

Is that real ?? 9.11 beta 5 so much faster than than the 9.11 full ??

for crossfire configurations, yes.

[eva2000]

Joining the club grabbed 3x HD5870 Sapphires. Starting with 2x HD5870 tests first though. Starting to push the clocks on 2x HD5870 in Vantage for Win 7 Ultimate 64bit.

100% fan speed voltages and clocks set in MSI Afterburner v1.41:

• 975/1263 at 1.187v
• 985/1263 at 1.212v

@985/1263 noticed that part way into Vantage bench, GPU2's fan speed drops out of 100% speed to 50% fan speed = end result GPU2 is 9C hotter at 63C peak versus GPU1 at 54C peak temps. GPU score seems a bit low ????

3Dmark Vantage = 27,045
http://service.futuremark.com/compare?3dmv=1665802



System:

• Intel Xeon W3570 3847A696
• EK Supreme LT 1366 / FESER 480 / MCP655
• Asus P6T6 WS Revolution
• Gskill Trident F3-16000CL9T-6GBTD
• 2x Sapphire HD5870 CF flashed Asus bios 9.11 drivers
• 750GB Samsung SATA
• Pioneer DVR-217 DVD-RW
• Corsair HX1000 PSU
• Dual Boot - WinXP Pro SP3 (nLite fully updated) with Vista Theme & Win7 Ultimate 64bit RTM

Took some photos of 2x HD5870 CF setup on Asus P6T6 WS Revolution (supports 3x PCI-E x16 slots for PCI-E #1, #3 and #5 slots). I grabbed my DFI UT X58-T3EH8's longer flexible Crossfire connector bridges as DFI UT X58-T3EH8 has double slot spacing for CF. Wasn't sure if I need both bridges for 2x HD5870 CF as there wasn't any difference in scores really for 1x vs 2x bridges I don't think. Last photo compares the longer crossfire connector bridge with the standard one.

[eva2000]

Now to see how 3x HD5870 Tri-Crossfire does - my first time using triple GPUs on any kind (ATI or Nvidia). Tight fit there with the HD5870s slotted into PCI-E x16 #1 + #3 + #5 slots.




Okay first Tri-CrossfireX runs with 3x HD5870 flashed to Asus bioses at stock 850/1200 speeds. I did try Vantage run with them at stock 850/1200 and overclocked at 985/1263 but got much lower GT 1 - Jane Nash score in the low 61-62fps vs my 2x HD5870 run with GT 1 - Jane Nash in the 71-77fps ???. 3dmark05 had virtually same score as 2x HD5870 ????

System:

• Intel Xeon W3570 3847A696
• EK Supreme LT 1366 / FESER 480 / MCP655
• Asus P6T6 WS Revolution
• Gskill Trident F3-16000CL9T-6GBTD
• 3x Sapphire HD5870 CF flashed Asus bios 9.11 drivers
• 750GB Samsung SATA
• Pioneer DVR-217 DVD-RW
• Corsair HX1000 PSU
• Dual Boot - WinXP Pro SP3 (nLite fully updated) with Vista Theme & Win7 Ultimate 64bit RTM

3x GPU = Win 7 Ultimate 64bit
2x GPU = WinXP Pro SP3 for all except Vantage benchmark


Low GT1 3D Vantage @850/1200 with 3x GPU = 24,397 vs 2x GPU = 25,115



Very easy breach of 32K @850/1200 for 3dmark06
3x GPU = 32,296 vs 2x GPU = 31,676



3Dmark05 - 3x GPU 40,214 vs 2x GPU 40,215 ?? Seems to be low GT1.



3Dmark2003 - nice boost 3x GPU = 158,942 VS 2x GPU = 130,936

[Monstru]

Nice stuff eva. You know, first time with TriSLI or Tri CFX is like another first time - the first thing you remember is "damn, this is too tight" :P

[Splave]

2x5870 Vapor-X 1000/1300 1.187v