ati 4870 woe

  gillieboy67 23:24 22 Jun 2009

hi all,i recently purchased a xfx ati radeon 4870,upon installing it when i turned my pc on the cpu/memory fail light on my motherboard came on but when i put my 4850 back in the pc started no problem,i'm using a ocz modxtreme 600watt psu,any ideas anyone?

  gary2112 11:53 23 Jun 2009

I think it could be 1 of 2 problems here,. One power supply or 2 the card is touching your case i.e. the metal bracket try reseating the card its self ,but you do have a 600w power supply ,what other stuff do you have in your pc i.e. how many hard drives usb for example

  keef66 12:08 23 Jun 2009

You could have a duff card; maybe faulty memory on the card is triggering the mobo diagnostic light?

Can you try the card in another pc?

Have you connected the extra power connector(s) to the card?

  gillieboy67 12:29 23 Jun 2009

my current set up is thermaltake kandalf liquid cooled case,8gb ocz 8oomhz ddr2 ram,biostar ta790gx motherboard,single dvdrw,640gb hard drive and an ati radeon 4850

  OTT_Buzzard 12:54 23 Jun 2009

What brand PSU? That's alot of kit for a generic cheapy PSU.....

  gillieboy67 12:56 23 Jun 2009

the psu is an ocz modxtreme 600 watt

  OTT_Buzzard 12:59 23 Jun 2009

yeah, i just saw that in your first post. sorry!!

  retep888 13:23 23 Jun 2009

Take out 2 Ram modules and leave just 4 GBs in,if it boots then you might have to either increase the NB voltage or to run with 4 GBs of Ram only.

  I am Spartacus 13:32 23 Jun 2009

With both power connectors plugged into the back of the card you should see 4 red LEDs briefly flicker when the PC is powered on. If you don't or one or more light stays on the card could be faulty.

D1601 - Red LED On, shows critical temperature fault

D1602 - Red LED On, shows External power connector A was removed

D1603 - Red LED On, shows External power connector B was removed

D601 - Red LED On, shows critical Core power fault

  I am Spartacus 13:33 23 Jun 2009

P.S. If it's a non-reference card then it may not have any LEDs fitted.

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