eh!? how do u know that?

psu culprit maybe fpr bsod?

make sure u have enough room for 6870 before u purchase

get myself 6850 and just enough too fit in case

recommend get gc from rockrock, he have the best deal in lyn

This post has been edited by Kaellis: Dec 4 2010, 09:11 PM

@Revamperz
possible formatting the pc ?
incase some leftover causing bsod

my acbel r8 handle 8800gt sli flawlessly before so i dont think psu is the culprit unless a 6850 suck more power then 8800gt sli?

i think it got do with my intel mobo , haih also not sure. but i updated mobo bios already too

ram 100% prob free as previous 8800gt n just tried 450 ran flawless ( finished 2 mission of starcraft ii )

weird isnt it? maybe my rig a pro nvidia haha

---

Added on December 4, 2010, 9:15 pmalready did

This post has been edited by Revamperz: Dec 4 2010, 09:15 PM

no other pc for testing?

after format also like that your rig really more pro to Nvidia

maybe it need different kind of psu 12v rail
what your psu 12v rail ?
also notice that ur acbel r8 is 600 watt
http://www.acbel.com/eng/Product.aspx?id=40&&sd=31&&pid=173
and 6850 needs about 10-11A on 12 rail.u also need to count your cpu watt.. it will be another 8-10A so you need at least 25A


This post has been edited by freeman85: Dec 4 2010, 10:00 PM

how to check that

will this help?

18 A for 12v1 -v4 ampere is kinda low ..minimum 25a to be safe
if u got spare psu with single rail ..better try it

oo yours is this one
http://www.acbel.com/eng/Product.aspx?id=40&&sd=31&&pid=175

ignore my previous post about your psu model

This post has been edited by freeman85: Dec 4 2010, 10:04 PM

Wow. Rusty and dust casing you have there .

How old is the power supply? The 12V rails should provide enough power even for two HD6850s. There's a possibility though, where the power supply can no longer work properly. Have you tried testing the whole system with a different power supply?

also check this thread discussing the hd6850 rails requirement
http://hardforum.com/showthread.php?t=1560740

my silverstone st560 can provide enough juice for 6850+3 hdd+dvd rom+ i7 920 +sound card +7 fans
iirc it all about good rails when it gfx

also..my friend told me that if it got lot of 12v rails..that extra rails power will be given exclusively to the another pcie connector
so that mean u already lost 18 A on another rails
i'm not sure if it true or not maybe some guru here can provide some insight to this

also i can confirm that ss 400watt with dual 12v rails..18a each can run hd6850 + e5200+ 2 hdd + dvd rom
(my neighbours run this setup)



This post has been edited by freeman85: Dec 4 2010, 10:23 PM

no i got no other working psu n the psu is 3 years edy. btw psu now is on me old system now gonna test the psu on a whole other rig


so in other word my old r8 is no go?


wah dont tell me a working psu doesnt mean its "working" properly

any way to check it?

can give your full spec..
or did i miss it in this thread

no prob

cpu : q6660
psu: r8 800w
ram : 2gb (got another 2gb)
hdd :1x 1tb
mobo : intel dp43tf

step taken
- tried 10.10 n 10.10e drivers
- ram swap
- format pc on another hdd

cards tested
Asus 6850 direct cu oc - bsod
Saphire 6850 toxic oc - bsod
8800gt - a ok
450 - a ok

This post has been edited by Revamperz: Dec 4 2010, 11:08 PM

. Just get another power supply for now to test. A 450W power supply should be sufficient ( 450W as its true power, not the powerlogic power supplies where it states 450W but in reality only produces 230W of power ).

i believe that your psu is ok for what u have
but it depends on the power available on the 12v rails and which ones power the CPU and gfx.
did u try second pcie connector ?
or if u have ..molex to pcie connector to try it

somehow i suspect that intel motherboard is the culprit

if it can support 8800gt sli, it should be fine supporting single card

i will try to get one tomorow

ehhh!? using the molex to pcie i havent try bcoz its a no brainer as my psu got dedicated 6pin

i will try it nao!

the intel mobo now is not a sli mobo the sli era was ended ages ago when my sli mobo i think asus, went kaput n i sold the other 8800gt

my bad didnt see p43

good luck solving your weird case

8800GT have a TDP of around 105w (on the nets)
hd 6850 got around 121 watts based on guru3d power consumption
so it is higher than previous

105/12=8.75A
121/12=10.08A

2 Amps more than before

This post has been edited by freeman85: Dec 4 2010, 11:19 PM

so if sli mean times 2 rite? i ran sli before