9800GT Eco Problems ?

derk · 27 Apr 2010 at 12:26

It has been noted that a few people are reporting problems running seti on the 9800gt eco/green cards.

They just dont seem to be powerful enough.

I know Grimgoth has experienced this as have I with the card generously donated by ToxicTBag.

On first install, with the supplied driver disc, Boinc reports that the card as incompatable due to having only cuda 1.1 capability :eek:

This was resolved by using nvidia's lastest driver - boinc reporting cuda 1.3 capable.

Started doing seti and almost every unit failed due to computation errors.

This has now been resolved by upping the clocks using the EVGA Precision Tool (available on EVGA site)

I'm no expert on OC'ing GPU's but mine is set at the following and is working very well -

Core Clock - 647
Shader Clock - 1617
Memory Clock - 836

I have a feeling the memory clock may be low but each day I'm increasing the settings to find the limit.

So Grimgoth dont lose hope, these cards are pretty good at the right settings

ToxicTBag · 27 Apr 2010 at 12:43

Hells bells glad you got it working, i'm using msi afterburner on systems with gtx 275 and 260 and trying to figure out whats safe to overclock to any ideas would be appreciated

derk · 27 Apr 2010 at 12:52

ToxicTBag said:
Hells bells glad you got it working, i'm using msi afterburner on systems with gtx 275 and 260 and trying to figure out whats safe to overclock to any ideas would be appreciated

I'm sure someone on here has done this on those cards, probably Loudbob's your best bet, he knows all about shader clock limits

shadowscotland · 27 Apr 2010 at 13:05

I'd take the core clock down - thats where all the power and heat is.
this usally give the shadders more head room

derk · 27 Apr 2010 at 13:13

shadowscotland said:
I'd take the core clock down - thats where all the power and heat is.
this usally give the shadders more head room

With the 9800gt and using EVGA software the core and shader clocks are linked by default.

Due to my inexperience I thought it best to leave it like that for the time being.

Having a look around to see what the limits are for this particular card (Zotac) in order to find the best settings.

Not sure about power usage so far but heat has not been a problem at all for me so far.

Biffa · 27 Apr 2010 at 13:18

I have two 9800GT Greens, run them at 504/1512/702 (Core/Shaders/Mem)

ReaVerUK · 27 Apr 2010 at 13:18

halz said:
With the 9800gt and using EVGA software the core and shader clocks are linked by default.

Due to my inexperience I thought it best to leave it like that for the time being.

I've got all my cards unlinked with shader as far up as possibly and the core and mem at the minimum saving power and heat.

derk · 27 Apr 2010 at 13:45

Biffa said:
I have two 9800GT Greens, run them at 504/1512/702 (Core/Shaders/Mem)

May try those settings but for now I'm just glad its kicking out results after a lot of down time.

edgedemon · 27 Apr 2010 at 16:16

I must be lucky then with my Asus

I have an Asus NGTS250 in my work PC, had it for about 9 months, and it has been hammering seti 24/7 since I bought it.
To be fair, its running at stock in a dell PC - dont fancy pushing it as the PSU is only 305W

Biffa · 27 Apr 2010 at 16:33

Mine are in Dells too..

derk · 27 Apr 2010 at 19:38

Well, the card has been running now at the settings stated above for over 20 hours and not a single error :cool:

And before anyone asks, yes they are validating as well

Grimgoth · 27 Apr 2010 at 20:05

my green GTS250 cards are doing fine, just have the one green 9800.... which I have replaced with a bulk standard 9800- it fits properly in the shuttle case as well.. halz is trying to dissuade me from selling the green 9800... now I have to think if I want to replace my aging 8600 (which is a bit of a pain, as its in reserator1v2 loop...)
we'll see if there are any bites in the mm I guess

edit: nice one for working out whats wrong halz, them error logs from those wu's didn't hint at all that oc'ing them would solve the problem!

edgedemon · 28 Apr 2010 at 08:14

Biffa said:
Mine are in Dells too..

I have 2 dells under my desk, one with a green 9800 and one without.
The one without is a Pentium D 3.4ghz, but as it is a desktop case with a riser, the chances of me fitting another card is zilch, there isn't the room, I even got the tape measure out to check. What a waste :mad:

derk · 28 Apr 2010 at 13:15

Not even low profile or a PCIe riser cable, shame if thats the case

edgedemon · 28 Apr 2010 at 14:24

halz said:
Not even low profile or a PCIe riser cable, shame if thats the case

lol

Nice idea, but it's just not possible, though I do have a backup plan..
Accidental spillage of beverage, machine won't boot, I stomp my feet and get a new 'test box' and then one will fit
Will wait until the new budgets in August and then try it