Member Avatar for meksikatsi

HP envy i7 with radeon 7670

I got rid of all graphics drivers and installed the 290. I got no display. no beeps, power supply is 600w high efficiency hp

there are no instruction with the card, although it is brand new. sapphire has no support contact on web page. what little pamphlet was there just said install the card, even though there are some power connectors that need to be connected to the power supply.

if I put back the 7670 I turn on and get an almost instant response on the monitor with an HP logo but with the 290 there's nothing and the power switch just flashes. again, no beeps, the computer sounds as if it comes up and runs normally. I've tried safe mode and low resolution mode to no avail and getting very tired of chaning that giant card out of there to replace the original.

any ideas would be welcome. I'll be back on tomorrow

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  • Latest Post Latest Post by jean122

Dani AI

Generated

Short expert summary and targeted troubleshooting based on the thread: the behavior described points to a hardware or firmware problem rather than drivers. As reported, the stock card boots but the R9 290 produces no picture and the power LED blinks. That pattern most commonly means either the R9 290 is not getting correct auxiliary PCIe power (or the PSU wiring is nonstandard), the HP firmware is not initializing that GPU, or the card is defective.

Likely causes to consider:

  • Auxiliary power mismatch or insufficient 12V rail current. Many R9 290 cards need two auxiliary PCIe power connectors (8-pin or 6+8); OEM harnesses sometimes look correct but use nonstandard pinouts or share rails.
  • BIOS/UEFI incompatibility. Some HP firmwares do not initialize certain aftermarket GPUs until a CSM/legacy mode or BIOS update is applied.
  • Physical/slot issues or a DOA card. No POST/beeps plus no VGA usually means pre-OS initialization failed.

Suggested step-by-step checks:

  1. Verify the card is fully seated in the primary PCIe x16 slot and the slot retention latch is closed.
  2. Confirm all card auxiliary power connectors are present, fully latched, and are genuine PCIe cables (not repinned OEM leads).
  3. Power-on observation: note whether GPU fans spin and any card LED lights. Fans spinning + LEDs on but no video points to firmware/compatibility; no fans or LEDs points to power/connector/DOA.
  4. Reset CMOS and check BIOS for CSM/legacy video or UEFI options; update BIOS to the latest HP build if available.
  5. If possible, test the R9 290 in a known-good ATX system or test a known-good GPU in the HP chassis to isolate card vs. chassis/PSU.
  6. Avoid cheap Molex-to-8pin adapters; if the HP harness is nonstandard, use a standard ATX PSU for a definitive test or get an approved HP adapter.

Tying back to earlier replies: correctly highlighted power and slot issues; correctly noted HP firmware restrictions. The fastest isolation is a swap test with a standard ATX PSU or another PC to determine whether the problem is the card, the HP power/harness, or the BIOS.

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Member Avatar for rubberman

An R9 290? Is that also a Radeon card? Does it require a dedicated power supply? Some high-end video cards have a power socked and require a cable from the system power supply to connect with it. Also, depending upon other loads, 600 watts may not be sufficient. Finally, are you sure it is in a correct bus slot? Is this a PCIx16 or other?

Edited by rubberman
Member Avatar for jean122

Sometimes you can't add a GPU to a HP computer, because the HP bios resricts the use of other GPU's. If that is the problem, you can only put specific videocards in the system. What model HP do you have?

I can look for you if that is the case.

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