@wesleyclark: Just one question for vmem. Middle pin is ground?
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@wesleyclark: Just one question for vmem. Middle pin is ground?
Here are the values of the metal can caps if anyone is interested in seeing if adding/replacing caps will make a difference
Top Right Area of the 4850 starting from Left Side:
4x 820uF 2.5v
1x 470uF 25v Sanyo
3x 47uF 16v
1x 100uF 16v Sanyo
Bottom Right Area Starting from Left Side
1x Sanyo 100uF 16v
2x 820uF 2.5v
3x 47uF 16v
I am assuming that I am reading these ratings correctly. The Polymer Solid Cans have markings that go like this: These two are the most common:
ULR (manufacturer?)
16v (voltage)
470 (this should be 47 * 10^0 uF)
XI ( type?)
833 (type, or maybe week/batch code?)
821 (likewise this has to be 82 * 10^1 , because 821uF is not a common rating)
2.5v (voltage)
The main power filtering cap is the Black Sanyo I am guessing since its the largest? 25v 470uF
Read my posts further down.
Wouldnt do 1GHz 1,63v, trying to get 900-950 stable ;)
grid works flawlessly at 910 mhz core on mine.. haven't tried lower.. man that game looks amazing at 1920x1200 4xaa i so badly need to find an IDE drive in storage.. so i can actually get some real bench scores im getting passed up by peeps with 700 mhz core.. :down:
So it is my core not getting enough power. Damn! ill keep it stock till later today i should be getting heatsinks and a multimeter. After that i have 27 days left to return it to bestbuy if it breaks lol. I dont like how hot it runs on stock cooling.
if your using the fan header from the card then i hope you have come across this. :up:
http://www.xtremesystems.org/forums/...d.php?t=192932
See my quote from earlier in this thread:
I didn't get to do any extensive testing b/c the card I did was for someone else, but I can tell you that at stock voltage w/ stock fan speed 1200 didn't pass the CCC test, and w/ 2.09v, and the fan at 100% 1200 did pass the CCC test.
If the 4870 can easily do 790 w/ 1.26v, then why wouldn't the 4850 (uses the same core as 4870) be able to do ~800 at 1.26v? I know the 4870 has a better power delivery system, but they should still be close until you get up much further than that.
will this multimeter do the job?
http://shop4.frys.com/product/542743...H:MAIN_RSLT_PG
my 4850 is doing only 850@ 1,45V
its a bad core i think
on stock only 670 oO
my ram does 1175 @ stock
but for extreme oc on ram i need water on it
i have tested 1300Mhz @ 2,4V on passiv heatsinks and i think its to hot i get extreme artifacts
http://www.abload.de/thumb/dsc02405desktopauflsyyw.jpg
http://www.abload.de/thumb/wak3foz.jpg
greetz from germany
@wesleyclark: Just so you know... the 12v batt I got, which yours should take as well, will resemble :
Duracell 21/23 - 12V MB21/A23 From their Security line... (as in like Car alarm Key FOBS)...
I am not sure if any of the model numbers given are Duracell specific. Got it in Walmart.. Was just on their battery shelf can't be rare at all. But there is probably a few less components required if it runs off 12v rather then 9v or 1.5v (AA) - At least I'd guess that, because our DMMs are of the dirt cheap variety :) (at least mine was, and yours is probably similar) Nexxtech I am guessing?
I got my HR03 GT today, and did the pencil mod on my 4850. Currently stable @ 800mhz 1.31v, 1130 on the ram unmodded. Hoping to get 900mhz stable. I love this card. :D
My DMM is radioshack branded. I went to 2 radioshack stored to find the battery, as it said it was available there, and NEITHER had the battery. So i am going to radioshack to return it in about 10 minutes. It was $20. Then i will be off to FRYS electronics to get theirs, which is half the price, @ $10, and uses a 9 volt or a 1.5v. So. Im happy.
That makes sense. Ill wait :)
Alright, went to Frys. Got 2x5k, 2x10k, 2x20k, and 2x100k Trimpots. If i needed a 1k for something, i could replace the 1k with a 5k correct? I would just need to turn it down a lot more before it would get effective right?
I also replaced my solder. So ill be doing a little bit of work tonight. But no DMM. The cheap ones looked pretty unattractive, so i will go back tomorrow with more money and get a nice one for about $45. That should work good. Also got some shrink wrap, and electrical tape. looks like I'm good to go.
Guys,
4870 diffrent PCB where GPU measure point, memory measure poit. and vmod point?
http://img57.imageshack.us/img57/7051/4870nw8.jpg
im thinking we need a shot of the front for the vmod... :up: