aldamon, I already wrote my observations of the 7800GT a few posts back.. take a look :)
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aldamon, I already wrote my observations of the 7800GT a few posts back.. take a look :)
Why did you start so low? HeavyH20's chart starts at 419 and yours finishes at 428. Surely your GT can go higher than 428.
Well, I experimented with ATI Tool and RivaTuner last night and determined there is indeed a key 7800GT OC point at 473. At 473, the ROP and Shader jump to 486. Unfortunately, my core couldn't handle a 40 MHz delta at 473, so I backed the base speed down until the artifacts were eliminated. Dropping 8 Mhz down to 465 did the trick. This told me my max geo speed is 504. So, using that knowledge, I modified my BIOS with a 32 MHz geo delta, which allows me to hit 473 base and 486 shader/ROP, while still limiting my geo core to 504. I'm not sure why setting the delta to 32 Mhz results in only a 31 MHz bump, but it does.
Tonight I'm going to see if I can reach the next ROP/shader speed bump while keeping my geo core at a max of 504 with a custom delta. The closer I get to a 504 base speed, the smaller my custom delta is going to get. The highest combination of shader/ROP/geo should give me the best performance. I think the folks who claim to have better performance overclocked without the delta have surpassed the next key OC point (500ish) and have boosted their Shader/ROP speeds. It would take a base clock in the high 490s to 500s without a delta to do this.
8159:
http://service.futuremark.com/compare?3dm05=1359710
473 MHz base / 1240 MHz mem / 504 MHz Geo / 486 MHz ROP / 486 MHz Shader
1.51V VGPU (Modded BIOS)
2.16V VMEM (Pencil. Is this the best I can do with a pencil?)
Custom 32 MHz Geo Delta
Free Air Cooling Mod: http://www.xtremesystems.org/forums/...ad.php?t=69513
Sorry for the noob question but are the 7800GTs different than the 7800GTXs, in that voltage to the gpu can be increased via the bios?
no voltage increase via bios.. But the GT i believe can be volt modded with just a pencil.
Yes Voltage increase via BIOS, at least you can for the core.
i have an EVGA 7800 GT (non CO version). I bought the card right when the 7800 GT's came out. My EVGA 7800 GT came with the Rev.1 BIOS (with the geometric delta clock of 40mhz) but i was artifacting so i switched to the Rev.2 BIOS.
my card is only able to get to 462mhz on the core (sad) but it bumps it up to 464. I'm a little confused here because reading through this thread, having a lower core clock with a geometric clock would perform better than a higher clock without a geometric clock.
well, i modified my BIOS so the core was only at 419 with a geometric clock at 45mhz (making it 464) but my 3dmark05 score was 200 points lower compared to my card at 462 without a geometric delta clock.
i'm guessing im looking at this the wrong way... can someone tell me what the best way to modify my BIOS? ie the geometric clock and my main core clock etc.
Some key differences between the GT and GTX.
1. According to the results I have seen, the ROP appears to bump at 13.5 MHz points versus the 27 MHz on the GTX.
2. Most GT cards do not have a delta and appear not to gain as much with this in place. Since the GTX uses a 1.5 root oscillation multiplier, extrapolating that result to the GT would be 20 Mhz.
3. The ratio of physics (vertex) to fill (shader/ROP) is 1 to 3 on the GTX. On the GT, it is 1 to 2.85. Also, fill is channeled through the memory, which is also slower on the GT than the GTX. So, there should be less of a bump required on the vertex component to match fill rates.
Things to try:
Use a 20 MHz delta, and see if your results improve. 40 Mhz is too much of a delta for the GT to see any real gains over no delta.
Is there anyone willing to test this and report back?
Only if you are not already using 1.4V. While some editor versions allow you to select 1.5V, it is not physically available so getting the BIOS to ask for voltage that is not there has no net effect.Quote:
Originally Posted by K404
ok, so since my MAX core can only handle 464, you want me to try a 20mhz delta, so i should try 444 + a 20mhz delta = 464 and i should get better performance?Quote:
Originally Posted by HeavyH20
i find that if you modify the same BIOS, you don't have to re-install the drivers everytime so its pretty easy for me to experiment with different settings.
i have an XFX GTX, the lowest version..comes clocked at 450/1.25ghz...so far, i can only get about 512/1.36. This seems pretty low compared to others OCs...and im cooling it with a maze4..so the core temp, according to the driver, is 31c...any one got any ideas as to how to crank a bit more out of this puppy?
edit: nm.
The max my BFG 7800GTX SLI's can handle is 490/1.38 with coolbits. They are watercooled, and run at about 52c on a load, but 1 of the cards still artifacts on anything higher than that. I really want to try h20's 500/1350 BIOS out, but im pretty sure it will artifact on me. Is there anything i can do?
Ive got my BFG 7800GT Volt Modded to 585/1300 with no
artifacts. Temps idle at 30oC and max at 340C with Water cooling.
http://img417.imageshack.us/my.php?i...scf05890jk.jpg
:banana:
Im hitting 19600Points in 3Dmark :03
www.4qman.com
S12 600w SLI PSU
MSI K8N Platinum *Volt Modded*
3800X2 @ 2.68Ghz
OCZ TCCD @ DDR536 2.5-3-3-6 T1
BFG 7800GT @ 570/1320 *Volt Modded*
*WATER COOLED*
http://img44.imageshack.us/my.php?image=dscf07611ae.jpg
http://img44.imageshack.us/my.php?image=dscf07238cw.jpg
nice
this is a very noobish question, but what is the molex for? Extra power or something?
Quote:
Originally Posted by 4Qman
wow excellent clock speeds m8 :slobber: :toast:
i have one of those cards, these voltmods are looking seriously tempting :stick:
Yes, the PCI-Express slot can't give enough juice.Quote:
Originally Posted by don_vercetti
so it needs a molex, as well as the PCI-E slot + the PCI-E power connector?? I find that hard to believe...Quote:
Originally Posted by alexio
why?Quote:
I find that hard to believe...
PCI-E slot gives 75w at least, and the total power consumption of a 7800gt can't be much over 120w or so, even overclocked. I'm sure the PCI-E connector can deliver 50+w so there is no need for a molex.
Also, the molex has no grounding cable, so i really do doubt it is for power.
In fact, i'm stupid - those are the vddr and vgpu measuring points, so i guess the molex is there to make it easier to measure those two - right?
:slapass: :stick:
i am slow.
Thats correct Don,
The Molex is to meause the VGPU and Ram Vddr "conected to the measuing points. Its alot easyer than trying to measue them with the Card in the case.
I was planning on fitting a switch to turn the mod on and off but
i decided it could cause some damage if i caught the wires and removed a resistor.
Ive not really had much time to play with the mod but i know im about 400points short of hitting the 10k mark with 3dMark 05. Altho i doubt ill hit it.
you can but try. Just needs one cold night.
there a tutorial around for vmodding the 7800gtx?
Here is the link to the 7800 GTX volt mod thread.
http://www.xtremesystems.org/forums/...ad.php?t=67494
That stuff is like greek to meQuote:
Originally Posted by HeavyH20
hey guys, this thread is a great read. i just wish i understood it all. i just got a 7800gt (elcheapo 3d fusion) and really want to push the **** out of it. with the stock bios, cooling, and volts i hit a wall at 475/1120. i will be adding a maze 4 with a water chiller in the next week or so and will also be doing a gpu and memory volt mod as well. is there a modded bios that would work better for my setup? any help would be greatly appriciated. thanks again for the great information guys
decided to finally try one of HeavyH20's bios rev4 500mhz one
nice and fast - this is 2nd highest single 7800GTX score i've done @3ghz besides using FX-57
1X BFG 7800GTX stock heatsink air @513(564)/1386 with HeavyH20 rev4 bios
3dmark2003 = 19,997
http://www.fileshosts.com/DFI/NF4_SL...6_19997_tn.jpg
@Heavy: I´ve a XFX 7800 GTX Extreme Edition. Can i use some of ur Bios as well ?? If yes, can u pls tell me which one ??
thx & cya
I am in the same boat! Chilled H2o on mine! Hook us up!Quote:
Originally Posted by Sauron_Vie
Am I correct in saying that the OC points on the 512mb GTX aren't there anymore?
http://www.digit-life.com/articles2/video/g70-7.htmlQuote:
By the way, it should be noted that BIOS in these cards is not limited to 27 MHz steps to change the frequency, which we had seen in older cards. Frequencies can be changed in a usual way. But all the three core frequencies are tied to each other as before, they cannot be controlled individually.
There are no delta's on the new card. When I get mine,however, I will try one out with and without a delta. Just to know how they may work differently.
Quote:
Originally Posted by UFgatorSean
The BIOS, rev 4-500 will work fine on the XFX Extreme. I have tested it on that card personally!
And, finally, I broke 10K on 05. Took a little tweaking an prodding, but I had to break across the border before my 512 MB cards showed up. It was using the Rev4-500 BIOS, as well.
I also have some intitial tests results back from some GT volunteers. The 20 MHz delta appears to gain around 300 points in 05. Now, just have to improve the memory timings a tad. Together, that should net around 500 points in 05.
No delta's should make overclocking a little easier...it takes away the whole challenge of it though :)Quote:
Originally Posted by HeavyH20
Got a link for the BIOS, rev 4-500 ?
thx & cya
Is there a bios for us out there that have weaker cores Im stuck at 472/1330. If I go 1 mhz over then I artifact:( Im really looking for a bios that uses the 459 core speed but has better timings etc. ive seen the 473 bios but I dont think itll go that far. Im using 2x7800 gtx gainward golden samples.
ok - this is going to sound stupid, but my max memory OC on mt BFG OC GTXs seems to be 1330 according to coolbits "auto" probe settings... so if I try this bios it might cause some serious issues, no? or will the timing changes allow for a more stable memory OC? I just got these cards and am looking to really push them for benching... just to see what I can get.. they're on water with Swiftech ramsinks... maybe I should just pull the ramsinks? does the gddr3 do better bare? hrm... BTW - my cores go over 500 no problem. :)Quote:
Originally Posted by HeavyH20
Anyways, Heavy, the info here is awesome. great work!!
EDIT: just changed some fans around and tested again... 1350 stable on the memory now. I am guessing giving the thermal adhesive time to set helped mostly.... I might get more on that over the next 24 hours if that is the case. :)
My first post here but I read the entire thread.. And after some Vmodding resently I still was not getting even close to what I expected My little BFG 7800GT OC. This Made Blinker very sad :( . only 7500 3d05 scores :shrug:
So I tried HEAVYs BFG gt Bios.. And WOW what a difference :woot:
:toast: To Heavy I now owe my current score to him(OK all of you here) But he had the goods
Heres the reward we got
http://service.futuremark.com/compare?3dm05=1462123 :clap:
Thinking 9000 3d 05 is possible?
Thanks all
Edited Sorry url Fixed I knew that Blinker Had brain freeze :slapass:
your link does not work... you have to use the "compare URL" listed towards the bottom of the project in the ORB UI - not the url in your location bar on the browser. :)
ok - I got 13192 but my gpu is being reported at 540mhz when I set it to 502 with coolbits... is that "hitting a delta" or something?... anyways, my cards run great @ 500/1350 at least, so the heavy 500 bios should work! :)
http://service.futuremark.com/compare?3dm05=1462261
EDIT: sorry for dbl post.. foo!
"is that "hitting a delta"
Yep that would be that Delta Bugger showing is butt
Hey guys. Haven't visited for a bit. Been running through the paces on the BFG 512's I have.
Some initial findings:
Default mem timings are in slot 3. The interesting thing is the timings are already tightened a tad from 1.1 ns GDDR3 spec. That is probably why the cards are rated to 1700 instead of the 1800 you would expect. Second, no delta on the new core, which is interesting in light of the faster DDR. You would think that the vertex cores would have even more work to keep up with fill from the DDR. Anyway, trying some BIOS mods to increase memory speed and also playing around with delta settings.
Back to the prior posts, I will be releasing a 20 MHz delta BIOS for the GT. My findings have shown this to be optimal on the GT cards. I will post that in a bit. Still doing a little assembly work on a couple of PC's.
The memory timing tweaks I adjusted do not affect memory OC. The best thing to help is heatsinks on the backside and a low speed 80 mm fan mounted on the side of the card. Keeps the memory a little cooler and the VR reg heatsink from getting too hot.
I should have a good OC BIOS for the 512 by Sunday evening. I will post some comparison numbers of before and after.
Hope these small changes see some even higher scores!
i posted an new thread about rivatuner only reading 486 for all three geo/shader/rop readings even when i overclock the card to 500/1200. now that i read this thread and you've mentioned that running a delta of 20 seems to be better than my current cards 0 delta i'm am anxiously awaiting your bios for my evga 7800GT CO.
i do have to ask though if it makes a difference that my card is stock 470/1100 and your bios base clocks may be lower? will this affect my max overclock if i went with a lower base clock than my stock speeds for reference? either way i'll be testing that 20 delta against my 0 with my current bios and then try yours out. i'll let you know if it makes a difference when i get to play with your modded bios.
ok i did some "quick" testing using 3dmark 01 for reference. here's my differences:
Rivatuner Monitor readings:
450/1100 with 20 delta 468Geo 459 Shader/ROP
470/1100 with 20 delta 491Geo 459 Shader/ROP
470/1100 with 00 delta 468 Geo/Shader/ROP
490/1100 with 00 delta 468 Geo/Shader/ROP (to compare with 470 & 20 delta)
3DMark 01' scores:
450/1100 with 20 delta 23986
470/1100 with 20 delta 24014
470/1100 with 00 delta 24075
490/1100 with 00 delta 24239
now i didn't do any overclocking with either of these bios's since i wanted to do a quick reference test. is the delta put there only for higher clocks on the Geo or is this something unique to my vid card?
so my card is really running at the 540 in 3d mode, then right?Quote:
Originally Posted by blinker0
If you select 500, you are actually running the vertex core at 540 and the ROP and Shader cores at 513.
soooo, anyone know why i got the results i did? why would my shader/ROP clocks go down when i used a delta to get me to same speeds as without a delta AND when i added the delta to my stock speed resulting in a higher GEO clock? i'm confused here.
Ok Guy just wanted to say thanks again. I put in previous post I thought I may be able to get My little GT OC to 9000 in 05 . I still have a little tweaking to do but .. Am so close I can tast it Thanks again for the help this post has givin me. And the Knowledge(sorry Blinker cant spell worth a stih) I gained from you all
Just a little word to thanks them all, especialy those who take time to think, test, try and share those info.
With your help, i'm really happy now ;)
I have two 7800GT (not GTX). The first i get can handle 560/1400 OC (with a 50 MHz delta), and the new one, 600/1380, with a 50 mhz delta.
My Goal was to hit and go beyond the 10K point under 3dmark 2005, with only one card : succefull ;)
http://img523.imageshack.us/img523/6878/3dmark36pj.jpg
31° idle, 37° just after 3 3dmark :D
The other get 9870 pts. i'll try to do more..
The two card are modded (gpu and mem), and of course watercooled.
My config :
Opteron 170 @ 2.7GHz (htt338)
1 Go Geil BH @ 2225-1T @ 247
DFI NF4 Ultra-D modded to SLI
forceware 81.95
I'll soon test the SLI setup :)
Sorry for my bad english :/
And again, thank you for all those infos that make me an happy O/Cer :toast:
:cool:Quote:
Originally Posted by Sauron_Vie
Anyone with a XFX 7800GT who has tried to edit the memory timings?
If, can you please write it here? :)
any updates on the 512 oc bios?
Quote:
Originally Posted by HeavyH20
The rev4-500 BIOS is in this thread:
http://www.xtremesystems.org/forums/...ad.php?t=76667
An the modded 512 BIOS is in this thread:
http://www.xtremesystems.org/forums/...ad.php?t=81924
A note about the 512. nVidia did their homework on this card. There is not much to eak out of the card beyond the stock BIOS. Adding a delta did not help on either of the two test cards I had. And, tightening the memory beyond what nVidia had done works but may cause issues with any card that cannot get to 1800 stock. The one I use is the rev2-580 BIOS since it loosens the memory to Samsung spec so that 1800 is easily eclipsed. I was able to hit 1900 with this BIOS change versus the 1840 without.
Best bet is to call upon the services of volt mod masters like ViperJohn to work some magic on your card :D
To summarize findings for the GT:
1) use a 21 to 25 Mhz delta first. If your card can handle it, a 40 Mhz works well also. The default jump seems to be 13.5 MHz versus the GTX 27 MHz.
2) If you volt mod the memory, tightening the memory timings can add some significant performance.
3) Looks like the vootage change in the BIOS works for the GT. I do nothave a card to test, but many who have measured the change with a DMM report a true voltage increase.
May I ask which tools you folks are using to adjust the timings in your 7800 BIOSes? I have used NiBitor, but do not understand the coding system for the memory timings, nor are the timing sets labelled to correspond with any of nVidia's reference timings.
I have a 6600 GT here, referenced for 2.0ns memory, but equipped with 1.6ns memory, and a BIOS reference that likely reflects that in its timings.
Reading some of your results, it would appear to me, that slightly loosening the timings in my card's BIOS should allow for signifigantly higher memory frequencies.
My timings are like this now;
19
27
12
7
8
5
4
Can i change them to this, and then be able to clock them higher?
23
33
15
8
10
7
5
How do I change the memory timings for my EVGA 7800gtx 256mb?
I already gave you the answer before. Stop talking and just try it. Remember, the higher clock should only be the means to get a higher score, nothing else. If you need some help, just ask me.Quote:
Originally Posted by bAdboLL
Good luck
I had 19,27,12,7,8,5,4 before, now i tried to change to 12,21,7,5,8,4,2 which was the lowest i could use.
But there is absolutely 0% performance win, something is not right i belive.
Do i need to flash my card with the new values or is it enough to apply them in nibitor and run?
Should i maby get worse timings to be able to clock higher or what do you tihnk?..
Be glad that you did it wrong, your board would have been locked up with those silly timings.Quote:
Originally Posted by bAdboLL
Of course do you have to flash the changed Bios back.
I gave you two sets. I can guarantee that they work, so test them !!
He guys esspecially registrered to the forum so i can post en thank you HeavyH20 to share this great wisedom with us. Had some Atis the last few years, and had the great offer to swap my X850 XT Pl series against a MSI 7800GTX with a little extra payment from my site. Didnt have to think that long, and it was mine.
A good friend pointed me out this topic, and after reading it for some time i start looking what it had under the 'hood'/cooling, it only has the boxed fan and my cpu is only having a Zallman alcu fan on it. These magic steps in corespeeds is al you need to know for OCing this baby.
So with the boxed cooling and my cpu at 2,6GHz i got 540 on core and 1,36Ghz on mem, and that gives me a 19150 in 3d03 and even a 9277 in 3d05.
http://service.futuremark.com/compare?3dm05=1741347
Without any oc on my cpu, i managed to run a test in 03 on 554 core and 1400 mem (next core treshold in the line of special corespeeds) and it gave me 18,7K but it had that much artis i dont want to risk that again before i get better-than-boxed cooling, and hell this is all on asus A8n-E with a Pci-E MSI 7800GTX, while the same OS ran till last week my epox AGP mobo with an ATI card in it... :stick: whole the event viewer is full of errors, but it still goes fast like this.
Gonna install XP fresh this week, and I am going to see if these numbers can be brought any higher. I guess with some mem timing tweaking and a not cripple OS things can only get higher... :woot:
double woot edit: this time i had the pleasant offer to sell my MSI geforce and for only 25e (about 30$) extra i could buy a saphire x1800xt 512mb .. still a weekend left for playing with this one..
sorry if I missed it but do you have a bios for a new XFX 7800GT ?
Mine refuses to go over 475mhz core with rivatuner
How do I check bios info on the card
I did get this info from Rivatuner
$ffffffffff NVIDIA VGA BIOS information
$ffffffffff ----------------------------------------------------------------
$1100000000 Title : G70 P317 SKU 0002 VGA BIOS
$1100000002 Version : 5.70.02.13.09
$1100000100 BIT version : 1.00
$1100000200 Core clock : 275MHz
$1100000201 Memory clock : 700MHz
$1100010000 Performance level 0 : 275MHz/525MHz/1.20V/28%
$1100010001 Performance level 1 : 450MHz/525MHz/1.40V/43%
$1100020000 VID bitmask : 00000011b
$1100020100 Voltage level 0 : 1.20V, VID 00000000b
$1100020101 Voltage level 1 : 1.30V, VID 00000001b
$1100020102 Voltage level 2 : 1.40V, VID 00000010b
$1100030001 Core thermal compensation : 8°C
$1100030002 Core thermal threshold : 115°C
$1100030003 Ambient thermal threshold : 110°C
$1100030004 Thermal diode gain : 0.792°C
$1100030005 Thermal diode offset : 23.060°C
Are you talking about the XFX wit the black PCB?Quote:
Originally Posted by graham_h
If so, forget about somebody elses Bios, and read this thread
http://www.xtremesystems.org/forums/...ghlight=7800gt
from the beginning.
Bios modding to 1.5 volt is not possible, should be done by harware modding, and mem timing should be adjusted to the correct values with Nibitor.
I can not change timings in my 7800gt bios. When I save modded bios and open it again in NiBitor (2.6a), I still see original timings. Why?
Quote:
Originally Posted by davidian
Start Nibitor
1) Press "Tools" "Read Bios" and "Select Device" and on the pop up screen "OK" for the 7800GT that Nibitor has found.
2) On the start screen of Nibitor press again "Tools" but now "Read into Nibitor"
3) Goto "Timings" and press OK when it says "Very Risky"
4) Press "Autoselect Timingset". You are informed now which timingset applies for your memory.
5) Press "Detailed Timing" and you see now seven timing parameters with their values for the timingset that has been chosen.
6) Change those timings and press "Files" and "Save Bios" and give the Bios a name.
This is the new Bios to be flashed to your 7800GT.
If you start Nibitor again and press "Files" and "Read Bios" select your newly generated file, and voila there it is.
Dont work :(
I set timings like this screen:
http://img394.imageshack.us/img394/631/timing58nn.jpg
File > Save BIOS
And when I open this (saved) bios again, I have original timings, like here:
http://img394.imageshack.us/img394/6259/timing07mt.jpg
In the first picture I see timingset 5 and in the second timingset 0.Quote:
Originally Posted by davidian
So you are looking at the wrong screen.
Hmm... I do it. By hand. I set Detailed timings like first screen. Saved bios. After open it again, Timingset is still 0 (zero), but Detailed Timings are good: 19-27-12-7-8-5-4.
Will it working fine?
I have no idea what you are doing. Timingset 5 with the figures you showed are the standard Infineon 2ns Gddr3 values for the Green PCB XFX7800GT.Quote:
Originally Posted by davidian
So without knowing the details of your board and your memory chips, how can anybody say if it will work.
To me it seems that you have changed nothing at all.
My 7800GT is manufactured by XpertVision. It's green PCB too.
Card:
http://img373.imageshack.us/img373/4...06674gk.th.jpg
Memory:
http://img373.imageshack.us/img373/2410/memorki3bw.jpg
Oryginal timings:
http://img352.imageshack.us/img352/6...ytuu1gq.th.jpg
And MODbios:
http://img500.imageshack.us/img500/9...ytuu8fy.th.jpg
Is it good?
No it is not good.Quote:
Originally Posted by davidian
The timingset to be used for your board is set 5.
All the other sets are not in use, no matter what you modify.
Attachment 42936
Here is my original bios (@1,5v). Could You try change timings, and send me modded bios to my email?
What do you want to change and why do you want to change.Quote:
Originally Posted by davidian
You have Infineon chips, and timingset 5 is exactly what it should be for these chips, so ??
P.S. The Zip file you have added, is unreadable.
I want bios with timingset5, cause I cant do it (i have still timingset0 after modification bios)
Change .zip => .rar
I inspected your BIOS, and as expected, your timingset5 is EXACTLY what it should be for your Infineon RAM.Quote:
Originally Posted by davidian
So again my question: Why do you want to change a timing that is completely O.K.??
You have already changed the 3D mode to 1.5Volt. So since that is all there is to change, now flash this BIOS to your GPU.
Sorry, it was my mistake. I've got alredy completed bios.
Thanks for patient.
I have just water cooled my leadtek 7800gtx 256mb with a MCW55 and OCZ copper rammsinks. I would like to use the evga ko rev 4 bios but i have no clue on how to install that bios, so i was wondering if somebody could please tell me how to install it and also will this gve me much of a peformance gain in games like hl2, fear and quake 4.
Thanks
no hijack intended, but can someone with the knowledge and hardware start a thread like this for 7900GT's ?
that should be very helpfullQuote:
Originally Posted by graham_h
I have a 7800gt with 1:1 core clocks, the core is crap for overclocking and I am thinking it is because one of the cores can't take the higher frequencies. I was wondering where I could get my hand on some 27 or 40mhz delta BIOS files for an EVGA 7800GT 256-P2-N515-AX? I checked MVKtech but none of the BIOS files are labeled
Great info! My single 256 7800GTX went from 9968 to 10422 3d'05 using H20's BIOS with the tighter timings and going from 600 to 608MHz! :shock: :up:
http://service.futuremark.com/compare?3dm05=1978152
:) hi ya guys, bit of an "outdated:rolleyes: " card now according to sum but i would like to get a little more out my leadtek 7800gtx EXTREME 256.
my stock clocks are 490/1.25ghz and i can overclock it to 550/1.39 on the stock cooling. this produces 9328 3d marks in 05.
if i raise the core by and extra 1mhz it fails the coolbits test.the temp maxes out at 51degrees C.
i run the cpu at stock speeds during the test(2.4ghz).
my aim is to hit 10000 3dMARKS IN 05( iddeally without using LOD). any advice owuld be much appreciated.:) :) :) :) :)
Quote:
Originally Posted by graham_h
Agreed, this would be awesome info
i agree
I believe that the process is simple, just replace the 7800's delta of 40 with the 7900's default delta of 20, ie add 20 to any of the suggested clocks shown on the front page (eg 25x27=675 - 20 = 655 final clock)Quote:
Originally Posted by graham_h
In my case however, I have flashed my bios and increased the Delta to 50, so I in fact deduct 50 from any multiple of 27, (eg 611 instead of 621).
If I get the point, this is how it works.
great info, anything for a 7900GT?
please anyone have already tried oc with an 70/80 geo? It's better or worst than with 60 geo?
thanks