GDC EXP egpu

Done.

dell studio 1555 (2009year)

Ati Radeon HD4570

gpu-M92(680Mhz)

mem-512M(800~1600Mhz)

mem bus width-64bit

Bandwidth-12.80Gb/s

expresscard 34m - pci-e 1.1

data speed-250MB

transfer speed 2.5GT/s( = 2.5*(8b/10b)=2.0Gb?)

 

 pci-e

version	Year	Line Code	Speed	×1	×2	×4	×8	×16
1	2003	8b/10b	2.5 GT/s	250 MB/s	0.50 GB/s	1.0 GB/s	2.0 GB/s	4.0 GB/s
2	2007	8b/10b	5.0 GT/s	500 MB/s	1.0 GB/s	2.0 GB/s	4.0 GB/s	8.0 GB/s
3	2010	128b/130b	8.0 GT/s	984.6 MB/s	1.97 GB/s	3.94 GB/s	7.88 GB/s	15.8 GB/s
4	2017	128b/130b	16.0 GT/s	1969 MB/s	3.94 GB/s	7.88 GB/s	15.75 GB/s	31.5 GB/s

 

gdc exp - 

PCI-E X16:DMI GT/s (X1) 5

Power support:
8P interface: 220W max.
DC interface: 150W max.

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Titan xp

Memory Interface Width 384-bit

Memory Bandwidth (GB/sec) 547.7

gtx1080

Memory Interface Width 256-bit

Memory Bandwidth (GB/sec) 256

gtx1070

Memory Interface Width 256-bit

Memory Bandwidth (GB/sec) 256

gtx1060

Memory Interface Width 192-bit

Memory Bandwidth (GB/sec) 192

gtx1050

Memory Interface Width 128-bit

Memory Bandwidth (GB/sec) 112

gtx1050

Memory Interface Width 64-bit

Memory Bandwidth (GB/sec) 48

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EXP GDC eGPU로 그래픽카드를 인식못할때 DSDT override 설정하기

(장치관리자에서 pci브릿지 등 살펴보면 인식못한것에 대한 설명이 있다)

오류코드 12확인(장치 사용 가능한 리소스 부족)

DSDT(Differentiated system Description Table)-ACPI(Advenced Configuration and Power Interface) 구성의 일부분

> DSDT 패치 - 시스템 사용 제한이 걸려 있는 부분을 커스텀 패치하여 사용 가능하도록 한다.

과정중에 %iasl%\iasl DSDT_MacbookP_EGPU.dsl 에서 

Length가 다르거나 오버값이라고 에러가나면

헥사코드로 max-min+1을 해서 length에 넣어주고 진행하면 된다.

https://blog.naver.com/lilika08/220907129472

https://egpu.io/forums/pc-setup/fix-dsdt-override-to-correct-error-12/#step1

https://www.techinferno.com/index.php?/forums/topic/5874-guide-dsdt-override-to-fix-error-12/