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15" Samsung RF511 + HD7970@4Gbps-mPCIe2 (PE4L 2.1b) + Win7 [lukedays]

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System


Model: Samsung RF511-SD1BR (brazilian, but similar to US versions)
Processor: Intel Core i7 2630QM 2.00 GHz
Chipset: HM65
Screen: 15.6’’ LED HD (1366 x 768)
iGPU: Intel HD 3000
dGPU: NVIDIA GeForce GT 540M 1 GB DDR3
RAM: Corsair Vengeance 8 GB DDR3 1600 MHz (upgrade)
SDD: Samsung 840 Pro 256 GB (upgrade)
Has EC slot or Thunderbolt: No
Has mPCIe slot: Yes, internally, in which was a Broadcom WiFi card


External


eGPU: Gigabyte Radeon HD 7970 OC 3GB GDDR5 – Core 1000 MHz, memory 1375 MHz
Adapter: PE4L-PM060A 2.1b
PSU: Corsair CX 600W
Monitor: ASUS 23’’ Full HD IPS


Setup


•    Did fresh install of Windows 7 x64.
•    Did all the power connections: notebook DC adapter, PSU floppy connector on the PE4L adapter, PSU 6-pin and 8-pin connectors on the eGPU. Also plugged the PSU 24-pin connector on the SWEX.
•    Connected the high-speed HDMI cable between the external monitor and the eGPU.
•    Put the switches on the PE4L to x1 (SW2 position 1-2) and 6.9s delay (SW1 position 3). Jumper J1 in place (default).
•    Opened the notebook and put it upside down, supported by the screen, for easy access of the mPCIe slot, which is only accessible by removing the bottom frame of the notebook. Using wireless keyboard and mouse now.
•    Turned on the notebook and booted Nando’s Setup 1.10b5 + updates, via USB flash drive.
•    Turned on the eGPU + PE4L via SWEX.
•    Plugged carefully the PE4L on the mPCIe slot.
•    Pressed F5. eGPU detected on port 1!
•    Did 32-bitA PCI compaction on iGPU + eGPU ignoring the dGPU.
•    Changed the speed of port 1 to 2.0.
•    I needed to ensure pci_alloc_valid was 256 MB. I only achieved this by removing 8 GB RAM (there was 16 GB initially). Oddly, pci_alloc_valid at 128 MB gave me low Vantage benchmark results, although no Error 12 was displayed.
•    Chainloaded Windows 7 and installed the latest AMD drivers (13.2 beta 5). Rebooted, doing the same steps to detect again the eGPU.
•    I don’t know why some benchmarks resulted so low, particularly 3DMark06. I tried exchanging drivers, disabling ULPS, changing settings in CCC, overclocking… Does anyone have an idea?

Benchmarks

 

  3DMark06 (DX9) 3DMark Vantage GPU (DX10) 3DMark11 GPU (DX11) RE5 (DX9) DMC4 (DX10, scene 4) Heaven (DX11) Battlefield 3 MP (1080p) Borderlands 2 (1080p) Portal 2 (1080p)
iGPU 4563 1790 --- 34.5 27.07 230 --- --- ---
dGPU 8588 4857 1120 63.1 61.33 609 20 FPS on Low 30 FPS on Low 30 FPS on Medium
eGPU 11983
11925
11221
26796
26763
26456
8951
8950
8943
122.0 149.84
2618
2468
2303
 
50+ FPS on Max 40+ FPS on Max 200+ FPS on Max
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I don’t know why some benchmarks resulted so low, particularly 3DMark06. I tried exchanging drivers, disabling ULPS, changing settings in CCC, overclocking… Does anyone have an idea?

Late reply.. better late than never. Two suggestions to isolate this performance issue most evident on 3dmark06 result:

1. 3dmark06 incorporates the CPU and GPU result. Ensure the CPU is running at full performance by setting the High Performance power profile and re-do 3dmark06 and RE5 benchmark. Should give a fairly sizable performance increase. If so then re-do all benchmarks to give accurate results.

2. Please check the output of GPU-Z to confirm it's running at x1 2.0.

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System

Model: Samsung RF511-SD1BR (brazilian, but similar to US versions)

i have an notebook similiar RF511-SD6BR, you have disabled wifi to do? or another component?

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i have an notebook similiar RF511-SD6BR, you have disabled wifi to do? or another component?

You can see lukedays is using the wifi mPCIe slot along with a PE4L-PM060A 2.1b to host the HD7970 eGPU.

Has mPCIe slot: Yes, internally, in which was a Broadcom WiFi card

eGPU: Gigabyte Radeon HD 7970 OC 3GB GDDR5 – Core 1000 MHz, memory 1375 MHz

Adapter: PE4L-PM060A 2.1b

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Hey lukedays,

I wanted to ask you it it is possible for you to test the AMD HD 7970 in a tower with a x16.2 or x16.3 connection? So you had the efficiency of the AMD HD 7970. That would interest me.

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