Originally posted by: paulxcook
I liked Rivatuner. But, my advice is to not overclock it, wait a few weeks, then step up to a 7900 GT for almost nothing once it's released. That's what I'm doing.
Originally posted by: paulxcook
Why bother finding max core and mem if he's just going to step up to a different one in 2 weeks?
As for me personally, I'm not overclocking because I tried and anything past 470/1100 crashes my PC. So I gave up and left it at the stock OC.
Originally posted by: duragezic
And yeah finally the 7800GTs rarely overclock well. I'm at 475/1150 and its unlikely I'll try going higher since I don't want it overheating or artifacting.
Originally posted by: mazeroth
Mine came 470/1100 stock, so I doubt I will get much improvement overclocking it. The 7900GT step up looks very tempting, but how much do you want to bet they'll have the MSRP at like $399 on the eVGA site?
Originally posted by: the cobbler
Originally posted by: mazeroth
Mine came 470/1100 stock, so I doubt I will get much improvement overclocking it. The 7900GT step up looks very tempting, but how much do you want to bet they'll have the MSRP at like $399 on the eVGA site?
It's going to sell for $299.
You'd be surpised how much more your GPU probably has left in it. Overclocks of 500mhz core and 1250mhz memory are very common with 7800GTs. With volt mods, most of them should do 575/1350 or better.
also stock speeds for 7800GT are 400/1000mhz, so the eVGA cards really aren't all that cranked up. There's a lot of headroom left in these cards. My OCs are 150mhz on the core and 400mhz on the memory above those reference speeds, which is still cool to the touch under load.
Originally posted by: Throwmeabone
I'm skeptical that you will be able to get the 7900GT for $299 in the EVGA step up program. They list their 7800GT's upwards of $400.
Originally posted by: paulxcook
Originally posted by: the cobbler
Originally posted by: mazeroth
Mine came 470/1100 stock, so I doubt I will get much improvement overclocking it. The 7900GT step up looks very tempting, but how much do you want to bet they'll have the MSRP at like $399 on the eVGA site?
It's going to sell for $299.
You'd be surpised how much more your GPU probably has left in it. Overclocks of 500mhz core and 1250mhz memory are very common with 7800GTs. With volt mods, most of them should do 575/1350 or better.
also stock speeds for 7800GT are 400/1000mhz, so the eVGA cards really aren't all that cranked up. There's a lot of headroom left in these cards. My OCs are 150mhz on the core and 400mhz on the memory above those reference speeds, which is still cool to the touch under load.
You must have gotten a very good card, or I got a dud. Maybe the pencil mod will be my next step if I don't step up to a 7900 gt.
As for why I brought up the 7900 in the first place, it just seems like it'd be a great deal (if it is actually $299). I thought the OP might be interested to know. I also said I liked Rivatuner, so I wasn't completely off-topic.
Originally posted by: the cobbler
Originally posted by: duragezic
And yeah finally the 7800GTs rarely overclock well. I'm at 475/1150 and its unlikely I'll try going higher since I don't want it overheating or artifacting.
Rivatuner includes hundreds of low-level controls that the simple Coolbits registry edit does not. One of which is "DisableInternalClockTest". i.e. with Coolbits, your card will actually start artifactin/hit the wall well, well below your max core and memory speeds.
Coolbits "Detect Optimal Frequencies" stops my GPU at 490mhz/1160mhz or so. With the internal clock test disabled, my card easily reached 510/1220mhz.
With regards to 7800GT being "poor overclockers"...well, that is just ludicrous. Especially because they are easier to volt mod than falling off a tree, and they respond extremely well to it. I have done nothing but a .1v core increase via bios flash, and a .3v increase on the vmem via "pencil trick". No soldering. Gives me 550mhz/1390mhz speeds= I get ~9200 in 3DMark05 and 4500 in 06. That's a pretty healthy whipping over stock 7800GTX 256mb cards, and puts mine about on par with a stock 512mb GTX.
Originally posted by: the cobbler
Originally posted by: duragezic
And yeah finally the 7800GTs rarely overclock well. I'm at 475/1150 and its unlikely I'll try going higher since I don't want it overheating or artifacting.
Rivatuner includes hundreds of low-level controls that the simple Coolbits registry edit does not. One of which is "DisableInternalClockTest". i.e. with Coolbits, your card will actually start artifactin/hit the wall well, well below your max core and memory speeds.
Coolbits "Detect Optimal Frequencies" stops my GPU at 490mhz/1160mhz or so. With the internal clock test disabled, my card easily reached 510/1220mhz.
With regards to 7800GT being "poor overclockers"...well, that is just ludicrous. Especially because they are easier to volt mod than falling off a tree, and they respond extremely well to it. I have done nothing but a .1v core increase via bios flash, and a .3v increase on the vmem via "pencil trick". No soldering. Gives me 550mhz/1390mhz speeds= I get ~9200 in 3DMark05 and 4500 in 06. That's a pretty healthy whipping over stock 7800GTX 256mb cards, and puts mine about on par with a stock 512mb GTX.
Originally posted by: Bad Dude
Originally posted by: the cobbler
Originally posted by: duragezic
And yeah finally the 7800GTs rarely overclock well. I'm at 475/1150 and its unlikely I'll try going higher since I don't want it overheating or artifacting.
Rivatuner includes hundreds of low-level controls that the simple Coolbits registry edit does not. One of which is "DisableInternalClockTest". i.e. with Coolbits, your card will actually start artifactin/hit the wall well, well below your max core and memory speeds.
Coolbits "Detect Optimal Frequencies" stops my GPU at 490mhz/1160mhz or so. With the internal clock test disabled, my card easily reached 510/1220mhz.
With regards to 7800GT being "poor overclockers"...well, that is just ludicrous. Especially because they are easier to volt mod than falling off a tree, and they respond extremely well to it. I have done nothing but a .1v core increase via bios flash, and a .3v increase on the vmem via "pencil trick". No soldering. Gives me 550mhz/1390mhz speeds= I get ~9200 in 3DMark05 and 4500 in 06. That's a pretty healthy whipping over stock 7800GTX 256mb cards, and puts mine about on par with a stock 512mb GTX.
Could you give us the links to these mod please?
Thanks.
Originally posted by: the cobbler
not at all, sorry if it came off that way. No luck with RT either? yeah, the duds are out there. Bright side = you are still at a nice OC with that card at stock. 7900s look great, but I'm waiting to see how they OC. If they don't have much extra headroom, I'm probably better off with another volt modded 7800GT (and hope to get a good one).
Originally posted by: CKXP
i'm thinking about trying the pencil mod trick on the memory on my 7800gt, i've never pencil modded anything before. sounds simple, basically just filling in the resistor with graphite right? any type of lead in particular, or will good old #2 work. 7800GT Voltage Mods, and if screw up can i just erase the lead?