AMD Radeon HD6450 LP doesn't boot up - Dell Optiplex 380 SFF

Question

Hi, I bought an AMD Radeon HD6450 Low Profile on Amazon and the card simply doesn't boot up. It gives me the error 2 and 4. The CPU fan spins very fast with the GPU inserted on the PCI Express Port, but I tested the GT210 and it works fine. What could be the problem?

speedstep · Answer

HD6450 uses too much power 40W. HD3450, 4450, 5450 uses 20W max.

Madurix · Answer

The TDP of the GPU is 18w https://www.techpowerup.com/gpu-specs/dell-hd-6450-oem-1-gb.b5544

speedstep · Answer

Wrong.https://www.anandtech.com/show/4263/amds-radeon-hd-6450-uvd3-meets-htpcThere is a 25W limit for low profile PCI-E X16I have an HD3450 in mine.Validated cards areOptional card256MB ATI RADEON HD 3450 with dual DVI or VGA https://www.amazon.com/ATI-Radeon-Express-DMS-59-Profile/dp/B004QPR04O/&#xa0;Optional card256MB nVidia GeForce 9300 GE with dual DVI or VGAhttp://i.dell.com/sites/doccontent/business/solutions/engineering-docs/en/Documents/optiplex-380-tech-guide.pdfSLOT POWER LIMIT&#xa0;AMD Radeon HD 5670AMD Radeon HD 5570AMD Radeon HD 6450 (GDDR5)AMD Radeon HD 5450Stream Processors40040016080Texture Units202088ROPs8844Core Clock775MHz650750MHz650MHzMemory Clock1000MHz (4000MHz data rate) GDDR5900MHz (1800MHz data rate) DDR3900MHz (3.6GHz data rate) GDDR5800MHz (1600MHz data rate) DDR3Memory Bus Width128-bit128-bit64-bit64-bitVRAM1GB / 512MB1GB512MB1GB / 512MBTransistor Count627M627M370M292MTDP61W42.7W27W19.1W&#xa0;

Tesla1856 · Answer

@speedstep&#xa0;wrote:&#xa0;There is a 25W limit for low profile PCI-E X16&#xa0;SLOT POWER LIMITI've never seen that (so good catch).Just another reason not to try to make a mini/micro, SFF, (other baby computer here) ... something it's not.

bradthetechnut · Answer

Hi @Tesla1856, In that generation of Optiplex's, it's the USFF's that don't have add-on slots.

speedstep · Answer

&#xa0;The 380 Genre does not have a USFF model.Only Tower , Desktop,&#xa0; and SFF.The SFF DOES HAVE a video Slothttps://www.amazon.com/Y103D-Radeon-256MB-Profile-Video/dp/B00V1DTXNK&#xa0;https://www.dell.com/support/article/us/en/19/sln288293/optiplex-380-small-form-factor-sff-removal-guide-for-the-heatsink-power-supply-system-fan-io-panel-and-air-temperature-sensor?lang=enHD 3450 IN SLOT&#xa0;&#xa0;380 Models&#xa0;&#xa0;

bradthetechnut · Answer

Thanks speedstep.  I do know not all Optiplex's have a USFF, which is why I simply referred to 'that generation.'

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	AMD Radeon HD 5670	AMD Radeon HD 5570	AMD Radeon HD 6450 (GDDR5)	AMD Radeon HD 5450
Stream Processors	400	400	160	80
Texture Units	20	20	8	8
ROPs	8	8	4	4
Core Clock	775MHz	650	750MHz	650MHz
Memory Clock	1000MHz (4000MHz data rate) GDDR5	900MHz (1800MHz data rate) DDR3	900MHz (3.6GHz data rate) GDDR5	800MHz (1600MHz data rate) DDR3
Memory Bus Width	128-bit	128-bit	64-bit	64-bit
VRAM	1GB / 512MB	1GB	512MB	1GB / 512MB
Transistor Count	627M	627M	370M	292M
TDP	61W	42.7W	27W	19.1W