ATI HD4850 Overclockers' United, welcome to the Darkside overclocking!!
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 Apr 16 2009, 05:26 PM
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#121
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6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned   
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That is for reference card design.
To do the voltmod the most crucial thing is the DMM, why not check the stock voltage yourself ? Since after the mod the volts would increase and you need to monitor them in order to avoid any mishap like overvolting it too much and risk frying it. |
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Apr 17 2009, 05:52 AM
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#122
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Senior Member
6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned
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Try using the Catalyst Control Center's function Overdrive and OC from there. Any problems please share with us here.
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Apr 18 2009, 06:18 AM
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#123
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Senior Member
6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned
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QUOTE(K-r-e-X @ Apr 17 2009, 12:32 PM) i wanted to oc my toxic hd4850... but always not stable... ni help? What tools/software did you use to overclock and test the stability ?  QUOTE(Lov3Tikos @ Apr 17 2009, 02:22 PM) hmm, i heard if too much oc gc will be broken ? If you are still withing the CCC's limit then it would alright. |
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Apr 20 2009, 04:02 AM
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#124
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Senior Member
6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned
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QUOTE(shaun3230 @ Apr 18 2009, 11:16 AM) BSOD when playing games, hang etc. Try Furmark, better Best scan for artifacts after u oc with ATi Tools QUOTE(K-r-e-X @ Apr 19 2009, 02:07 AM) Rivatuner224 and test with 3dmark...but then my whole system hang...have to restart That means your oc is not stable.  if OC use CCC, i can see some pixel problem in game  QUOTE(iBenQ @ Apr 19 2009, 07:27 PM) found the stock voltage for core... but not for mem haha... i dun even noe which part of the card to monitor using voltmeter haihhhhhhh my card is totally different than reference card @@ The page that i gave you show the measuring points my card managed 750mhz without vmod and bios tweaking @ 1.046v, but wanna go 800 core, even when i put 1.25v with bios tweaking, still got artifacts T_T... guess really need to do pencil mod haha Bios vmod tops out at 1.2v and u need to put 1.158v at the bios so that it would detect and use 1.2v |
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May 27 2009, 05:04 PM
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#125
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Senior Member
6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned
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Mine maxed out at 725/1125 with the 1.158v bios vmod.
 Nice la yours can go that high  |
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Jun 3 2009, 04:06 AM
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#126
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Senior Member
6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned
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QUOTE(iBenQ @ May 29 2009, 11:16 PM) core clock can go high but not mem clock T_T... mem clock push too high with core clock = artifacts... tak puas giler core clock higher is better, mem wont give you so much boost also   QUOTE(toda6866 @ Jun 1 2009, 10:11 AM) I dun blame anybody bcoz its my own choice to play around There, your card is not a reference version in the first place. That's the thing that caused all the problems anyway, everyone's a noobie from start I dun wanna b a noobie forever dats y i opted to try.....found out this winflash does hav some probs to work with Palit Sonic hd4850, other boards i dunno la, but from the infos i read, works well with most reference boards FYI, my motherboard has no 2x PCIE or onboard, so I borrowed a PCI vga card from a Pentium classic.....re flash ori bios with ATIflash (dos), startup using USB stick go into DOS, flash it with command 'atiflash -p 0 newbios.bin' i fixed the prob with zero cost and my sonic hd4850 now back to normal... in case anybody needs help, PM me, i'll try my best to help  |
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Jun 5 2009, 02:59 PM
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#127
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Senior Member
6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned
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QUOTE(iBenQ @ Jun 3 2009, 06:59 AM) my card is not reference card as well, but i was able to mod bios @@... suspect something wrong in the settings he made Ya, maybe he choosed the wrong bios for his card lolQUOTE(apis_jay @ Jun 4 2009, 03:58 PM) Recently, I got problem with my Gigabyte 4850. My PC cant boot UP and sometimes got corrupted display in bios. BTW, I'm doing bios mod. corrupted bios eh Izzit something wrong with my GPU? Broken? Anybody here can help? Thanks in advance. try to flash back the original bios and see if the problem is still there or not.QUOTE(melvin0123 @ Jun 4 2009, 04:39 PM) juz asking... this HD 4850... OC to 750 mhz n 1050 mem clock... idle 40C ok wif the temp? tested stable with furmark ? |
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Dec 26 2009, 02:51 AM
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#128
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Senior Member
6,744 posts Joined: Jan 2003 From: World Wide Web Status: Banned
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QUOTE(seanlimys @ Oct 31 2009, 09:04 AM) 3dmark06, HD4850cf 700/1113..20k...hehe here's mine, 20k too with hd4850 CFhttp://forum.lowyat.net/index.php?act=Atta...=post&id=855104 |
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