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New laptop motherboard, no video

Joined
Mar 20, 2014
Messages
160 (0.04/day)
Hello! I have a problem.
2 days ago I ordered a replacement motherboard for my laptop (Acer Aspire 5720Z), motherboard model: LA-3551P. Everything is okay, but... I can't get video working on this motherboard.

I have tried:
-Replacing CPU from Pentium T2330 to Core 2 Duo T5450
-Changing RAM (Transcend/Hynix 1GB 667MHz)
-Changing HD2300 (which was oryginally in 5710Z) to 8600M GT (from Compal FL90)

When I mount HD2300, laptop "works", but screen stays blank. When I mount 8600, motherboard searches for something on pendrive. When I remove GPU completely, screen turns on and shows white color.

I heard that could be BIOS problem. Can I do something about it?
 

OneMoar

There is Always Moar
Joined
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Location
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System Name RPC MK2.5
Processor Ryzen 5800x
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Case Phanteks P300 /w 300A front panel conversion
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Software Windows 11 +startisallback
what about a external monitor does that work ?
 

OneMoar

There is Always Moar
Joined
Apr 9, 2010
Messages
8,741 (1.71/day)
Location
Rochester area
System Name RPC MK2.5
Processor Ryzen 5800x
Motherboard Gigabyte Aorus Pro V2
Cooling Enermax ETX-T50RGB
Memory CL16 BL2K16G36C16U4RL 3600 1:1 micron e-die
Video Card(s) GIGABYTE RTX 3070 Ti GAMING OC
Storage ADATA SX8200PRO NVME 512GB, Intel 545s 500GBSSD, ADATA SU800 SSD, 3TB Spinner
Display(s) LG Ultra Gear 32 1440p 165hz Dell 1440p 75hz
Case Phanteks P300 /w 300A front panel conversion
Audio Device(s) onboard
Power Supply SeaSonic Focus+ Platinum 750W
Mouse Kone burst Pro
Keyboard EVGA Z15
Software Windows 11 +startisallback
sounds like the replacement board was defective ...
 

OneMoar

There is Always Moar
Joined
Apr 9, 2010
Messages
8,741 (1.71/day)
Location
Rochester area
System Name RPC MK2.5
Processor Ryzen 5800x
Motherboard Gigabyte Aorus Pro V2
Cooling Enermax ETX-T50RGB
Memory CL16 BL2K16G36C16U4RL 3600 1:1 micron e-die
Video Card(s) GIGABYTE RTX 3070 Ti GAMING OC
Storage ADATA SX8200PRO NVME 512GB, Intel 545s 500GBSSD, ADATA SU800 SSD, 3TB Spinner
Display(s) LG Ultra Gear 32 1440p 165hz Dell 1440p 75hz
Case Phanteks P300 /w 300A front panel conversion
Audio Device(s) onboard
Power Supply SeaSonic Focus+ Platinum 750W
Mouse Kone burst Pro
Keyboard EVGA Z15
Software Windows 11 +startisallback
a laptop of that age is most likely not worth spending any more money on
 
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