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RE:o/c my ATI Radeon 8500 64mb(org 275mhz)

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  • Graphics Cards
  • DDR
  • Radeon
  • ATI
  • Overclocking
Last response: in Overclocking
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February 3, 2003 3:30:04 PM

can somebody teach me how to o/c my radeon 8500?

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1

More about : ati radeon 8500 64mb org 275mhz

February 4, 2003 10:37:22 AM

Need to know your GRAM speed first which is usually located on the gram itself. The last 2 digits ...xxxx x.x are what you want (ie. 3.6ns, 3.3ns). 1/x.xns * 1000 (mine is 128MB infineon 3.6ns=277.7MHz) will give you the "rated" speed of the gram in MHz. I've used Rage3D tweaker (free app, www.rage3d.com), and powerstrip (trial ver <A HREF="http://www.entechtaiwan.com/ps.htm" target="_new">here</A>. Both of which produced errors over extended periods of time. You will probably need extra cooling (ie. better fan/heatsink, ram heatsinks). I slowly increased the GPU and GRAM till I found the limit (artifacts or crashes using both above tweakers, happen to be 297MHz for my BBA8500LE, default 250MHz), used repeated benchmarks of SiSoft Sandra, Wintune, 3DMark to stress card. Then I used radedit (easily found using www.google.com), and Radeon Bios Flash to edit my saved bios and replace the original with the new speeds (292/292) to be safe :) . Worked good. If ya have 3.3ns GRAM and wanna go further (like 310MHz+) then look <A HREF="http://www.xcl-clan.com/articles.php3?id=29" target="_new">here</A> for volt mod. In any case you'll probably need to ALOT of reading to get you prepared. The difference is definetly noticable in games and benchmarks report 15-18% score increase :)  Also my card is (B)uilt (B)y (A)TI which can play a huge role in if you can do this/how far you can go.
Psyko

:eek:  <b>Who needs heatsinks and fans, I have an igloo</b> :eek: 
February 4, 2003 12:20:33 PM

1)wat is GRAM speed n GPU?
2)wat errors did u get frm using the 2 tweakers?
3)wat is radedit used for?
4)how do i find out whether my radeon is built by Ati/powered by Ati?
5)lastly...where can i find a comprehensive yet uncomplicated guide for o/cing my radeon?

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1
Related resources
February 4, 2003 11:03:09 PM

1.GPU=Graphics Proccessing Unit (yours is 275MHz), GRAM= Graphics RAM (yours is 275MHz), Speed is the MHz they run at.
2.All kinds of errors (BSODs, etc.) that would take anywhere from a few hours of hard use to a day of hard use to occur.
3.Radedit is used to modify the bios of your Video Card
4.BBA will be right on the box it came in otherwise I've no idea.
5.No such thing I know of :(  I've been reading everywhere I can as to what I can expect out of my card and how to go about getting there. The links I provided hold a wealth of info and holds all the things you'll need to know. Unfortunately not in one nice little package :( 

:eek:  <b>Who needs heatsinks and fans, I have an igloo</b> :eek: 
February 5, 2003 1:12:35 PM

a few more qns...
1)'Need to know your GRAM speed first which is usually located on the gram itself. The last 2 digits ...xxxx x.x are what you want (ie. 3.6ns, 3.3ns). 1/x.xns * 1000 (mine is 128MB infineon 3.6ns=277.7MHz) will give you the "rated" speed of the gram in MHz.' can u explain dis in layman's terms?
2)how do i use PowerStrip to o/c my radeon?
3)how do i test for stability after o/cing?
4)wat do u recommend i use to cool my radeon?
5)how do i find out whether my radeon supports AGP 2x/4x?

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1
February 5, 2003 3:54:31 PM

1.Your Video Card has 4 identical black rectangles on it. On these black rectangles is numbers, write them down (they should all be the same). The last 2 digits of these numbers inverted and multplied by 1000 is the rated speed in MHz of said black squares, which is your video cards memory (gram).

2.You move the sliders that say "GPU" and "MEM" up, try to keep them the same (synchronous).

3.Use benchmarks or games (if you don't know how to test for stability why are you OCing your video card? What do you use the card for?)

4.I used an OEM AMD XP fan taken from my CPU when I bought a new one for it. I then mounted it in PCI slot 1, pointed right at the original HSF that came with my Radeon. If ya plan on going above 290 or so then you should also put ramsinks on your gram.

5.If it's an 8500 it supports 4X AGP. When I install ATI's drivers the Control Panel allows me to view/change my AGP "speed?". You can also view it in the bios, restart puter and hold either delete or F1 and should get there. You'll probably have to find it in there but it'll be there if the mobo has an AGP slot in use.

:eek:  <b>Who needs heatsinks and fans, I have an igloo</b> :eek: 
February 5, 2003 4:15:41 PM

yeah thanx...i found my GRAM already...1)since u said PowerStrip produced errors after a awhile do u tink i should go ahead n use it to o/c my radeon?would it be of any use at all?also...2)e voltage mod website u gave me taught pple how to o/c LEs n OEMs so its not applicable to me?(mine is retail-3.6ns)
3)could u explain more abt ramsinks?
4)r AGP 2x/4x/8x data transfer speeds?

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1
February 5, 2003 4:33:32 PM

1) if powerstrip doesnt work for you, try Rage3d Tweak 3.6 or Radeonator 2.0.
2) try this website for voltage tweaks: www.overclockers.com/tips1010/
3) ramsinks are just little heatsinks for your ram. You have to attach them via thermal tape or thermal epoxy. Check out Tweakmonster ramsinks and be sure to get the SDR/DDR version and not the BGA versions, which are smaller.
4) the higher the transfer rate, the faster the information will flow resulting in faster graphics performance. Your radeon supports 4x which is plenty fast at this time.

I just gave you some basic nitty gritty. Do some searches on the web and you'll find an amazing amount of info.
February 6, 2003 2:38:13 AM

hey psyko...y is it dat ur BBA8500LE was able to go up to 297mhz while my BBA8500(retail@275mhz) hung on me at 290mhz(using PowerStrip) when i ran a benchmark?

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1
February 6, 2003 3:44:10 AM

The same can be asked of why my BBA8500LE didn't make 325/325MHz like some other peoples I've heard of have. First thing first, have you got a good power supply for the computer, quality mobo (preferably with AGP voltage adj.), good ram etc? Are you using the latest bios/drivers for your components? There's a million other reasons including one you can't fix and that's that every card is not created equal :(  My card and your card have the smae components, ATI downclocked/volted my card to 250/250 and sold it for $100CDN less, you can still increase your voltage at the expense of card life but a small increase probably won't hurt it and may make all the difference to your OC. Could be instabilities within your OS showing up because of the OC, might be the card getting hot, not enough voltage to the components on the card (GPU/MEM). Could also be powerstrip. I would "burn in" the card over several days, start from default 275/275 SLOWELY increasing the speeds until I found the limit. Must test everything on the way, anything you plan to push the card with must be tested for instabilities. Who wants an unstable system right? Better to be alittle slower and stable :)  My card could go faster if I upped the voltage some more and good some liguid cooling and ramsinks but for the extra say 6% it's just not worth it. I'll buy a BBA AIW 9700 Pro 128 soon enough :) 

:eek:  <b>Who needs heatsinks and fans, I have an igloo</b> :eek: 
February 7, 2003 1:35:10 AM

hmnn...wat u said makes sense...i will try everything i can...

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1
February 10, 2003 8:28:01 AM

sorry...1 last qn...wats the difference between a 64mb graphics card n a 128mb graphics card?

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1
February 10, 2003 11:19:01 AM

Basically one has 64MB of GRAM and the other 128MB of GRAM. There can be major differences between the "type" of Ram used but that's another story. Must be careful when flashing the video cards bios though to ensure you have the one for your specific memory (ie. 64MB). Other than that I believe we use the same drivers (Catalyst 2.5 or 3.0 depending on issues).

Psyko

:eek:  <b>Who needs heatsinks and fans, I have an igloo</b> :eek: 
February 10, 2003 1:39:43 PM

wat i really wanna know is...would a 128mb produce better graphics than a 64mb?or are there other differences between 64mb n 128mb other than amt of GRAM?

Athlon XP 1700+(1.47ghz)
ABIT KR7A KT266A DDR ATA 100m/b
384mb Kingston PC-2100 DDR RAM
ATI Radeon 8500 64mb(Org)
40gb ATA100 7200RPM 2mb buffer(WD400BB)
WinXP with SP1
February 10, 2003 3:52:42 PM

Depends on the game you're playing.If the game uses a lot of textures then higher RAM can surtaintly give more performance... otherwise the difference will be very small.
Unless the memory speed for a 64MB card is higher then that of an 128MB card like with the GeForce4 Ti4200.

My dual-PSU PC is so powerfull that the neighbourhood dimms when I turn it on :eek: 
!