litecoin rig check (4x 7950)

[lewlzminer]

so can you tell me what thread concurrency you are using? i use 217xx and need ~1500gb ram per card
3 cards was the limit for 4gb running on win7 64 with cgminer

the ram does not show as "used" in task manager but unless you have enough ram cgminer throws errors...

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[chungenhung]

If you want to waste your money on RAM for a litecoin mining rig that isn't need, go ahead.

I'm done. 

Exactly. Let those people waste their money.
I am in the similar boat with you, running 4x 7950 on a 2gb ram.

[chungenhung]

so can you tell me what thread concurrency you are using? i use 217xx and need ~1500gb ram per card
3 cards was the limit for 4gb running on win7 64 with cgminer

the ram does not show as "used" in task manager but unless you have enough ram cgminer throws errors...

Then you are doing something very very wrong. No way it uses that much ram.

[chungenhung]

I like the Gigabyte 7950s, and actually have 7 of them, but they do run hot inside a case if you don't have very good airflow.

Whichever card is plugged into PCI-E slot 1 also seems to run very hot, so they do much better in an open case using risers.

They come factory overclocked at 1000/1250, and do over 600k mining litecoin without additional over clocking.

I really like these cards, but keep an eye on temps if you use them in a closed case and plug the cards directly into the mobo.

They suck a lot of power though. At least 50w more than other 7950 cards. I guess the extra KH has to come from somewhere.

[auctioneeeeer]

I downgraded the BIOS on all of my Gigabyte 7950's to F43, and they run 5-10c cooler, and draw about 50w less...

[lewlzminer]

ok i removed 8gb of my 10gb rig running 5x7950

start cgminer:

 [2013-04-30 21:23:01] Thread 1 being disabled
 [2013-04-30 21:23:01] Error -5: Enqueueing kernel onto command queue. (clEnque
eNDRangeKernel)
 [2013-04-30 21:23:01] GPU 4 failure, disabling!
 [2013-04-30 21:23:01] Thread 4 being disabled
 [2013-04-30 21:23:02] API running in IP access mode on port 4028 (22592)
 [2013-04-30 21:23:03] Pool 0 stratum+tcp://stratum.give-me-ltc.com:3333 alive
 [2013-04-30 21:23:03] Switching to pool 0 stratum+tcp://stratum.give-me-ltc.co
:3333


solution?

[joshki]

ok i removed 8gb of my 10gb rig running 5x7950

start cgminer:

 [2013-04-30 21:23:01] Thread 1 being disabled
 [2013-04-30 21:23:01] Error -5: Enqueueing kernel onto command queue. (clEnque
eNDRangeKernel)
 [2013-04-30 21:23:01] GPU 4 failure, disabling!
 [2013-04-30 21:23:01] Thread 4 being disabled
 [2013-04-30 21:23:02] API running in IP access mode on port 4028 (22592)
 [2013-04-30 21:23:03] Pool 0 stratum+tcp://stratum.give-me-ltc.com:3333 alive
 [2013-04-30 21:23:03] Switching to pool 0 stratum+tcp://stratum.give-me-ltc.co
:3333


solution?

Put the ram back.