Cheap chinese x79 mobos

Sable

Active Member
Oct 19, 2016
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Got this board and it was DOA. Working at returning it and getting a different one.
Hey, are you sure you installed it correctly? These boards need all components to be correctly installed, you can't leave out a gpu, ram slots have to be populated in the way they are designed, not always the same as boards from popular brands.
 

joddlarn

Member
Jul 14, 2018
50
22
8
Sweden
Hey, are you sure you installed it correctly? These boards need all components to be correctly installed, you can't leave out a gpu, ram slots have to be populated in the way they are designed, not always the same as boards from popular brands.
I also bought this board, but from Aliexpress.
I was planning on populating it with 8x8gb memory (all modules are the same model), a supported CPU and a GPU. Is this correctly planned or do I need to change something?
 

TType85

Active Member
Dec 22, 2014
597
173
43
Garden Grove, CA
Hey, are you sure you installed it correctly? These boards need all components to be correctly installed, you can't leave out a gpu, ram slots have to be populated in the way they are designed, not always the same as boards from popular brands.
Yes. I have been building computers for over 25 years and am very familiar with troubleshooting. I tried with 1,2 and 4 sticks of ram both ECC and non-ECC. Checked the CPU socket no bent pins, tried 2 CPUs (1 V1, 1 V2). Tried multiple video cards. All known good parts. It doesn't post. It is DOA. Very disappointed in the board and the response from the eBay seller.
 

Tha_14

Server Newbie
Mar 9, 2017
72
10
8
Yes. I have been building computers for over 25 years and am very familiar with troubleshooting. I tried with 1,2 and 4 sticks of ram both ECC and non-ECC. Checked the CPU socket no bent pins, tried 2 CPUs (1 V1, 1 V2). Tried multiple video cards. All known good parts. It doesn't post. It is DOA. Very disappointed in the board and the response from the eBay seller.
I the seller is from china, never let them make you wait. Lately they have been abusing their power.
 

wildpig1234

Well-Known Member
Aug 22, 2016
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thinking about it, i might have to make sure i order from US sellers too. refund and exchange with chinese sellers would be a lot harder...

Can you post the link for the US seller of this? thanks
 

Sable

Active Member
Oct 19, 2016
370
101
43
27
Yes. I have been building computers for over 25 years and am very familiar with troubleshooting. I tried with 1,2 and 4 sticks of ram both ECC and non-ECC. Checked the CPU socket no bent pins, tried 2 CPUs (1 V1, 1 V2). Tried multiple video cards. All known good parts. It doesn't post. It is DOA. Very disappointed in the board and the response from the eBay seller.
I understand. I was assuming you had much experience because when we get returns on the motherboards, we always get the message that it is doa and that the person is highly experienced in building computers. 9/10 returns we find actually have no problem but it definitely sucks when you have a board like that. So much for always trying to find the cheapest deal haha ;p
 

TType85

Active Member
Dec 22, 2014
597
173
43
Garden Grove, CA
I understand. I was assuming you had much experience because when we get returns on the motherboards, we always get the message that it is doa and that the person is highly experienced in building computers. 9/10 returns we find actually have no problem but it definitely sucks when you have a board like that. So much for always trying to find the cheapest deal haha ;p
Worst part these guys want me to shoot a youtube video of it not working. I'm not wasting my time on that. As it was since it came with zero documentation I had to dig around to find the front panel IO to know which was for the power/reset, luckily that is somewhat standard across those boards.
 

wildpig1234

Well-Known Member
Aug 22, 2016
1,986
348
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Worst part these guys want me to shoot a youtube video of it not working. I'm not wasting my time on that. As it was since it came with zero documentation I had to dig around to find the front panel IO to know which was for the power/reset, luckily that is somewhat standard across those boards.

Seriously? all that for a refund /exchange? if so, i don't know if i want to buy it now
 
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TType85

Active Member
Dec 22, 2014
597
173
43
Garden Grove, CA
Yes. I have been building computers for over 25 years and am very familiar with troubleshooting. I tried with 1,2 and 4 sticks of ram both ECC and non-ECC. Checked the CPU socket no bent pins, tried 2 CPUs (1 V1, 1 V2). Tried multiple video cards. All known good parts. It doesn't post. It is DOA. Very disappointed in the board and the response from the eBay seller.
I got it working. There was an issue with the 8-pin CPU plug that we were able to re-solder. Quality control issue from china... whouda thunk it....
 

wildpig1234

Well-Known Member
Aug 22, 2016
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i just bought another lenovo s30 v2 WS the other day for $124 shipping included. good price but don't know why i did it ;(...... i think i have an addiction ;(
 

joddlarn

Member
Jul 14, 2018
50
22
8
Sweden
I got my x79z-vb10 the other day and sat it up yesterday.
It seems to be working, but I can't figure out how to get all four pcie x16 to work at the same time. I've hooked up an E5-2650v2 CPU, 64gb ddr3-ecc and a basic gpu. When I add a 10Gbps nic and two m1015 cards I can only get two cards to work, either the cards in the grey slots or the cards in the black slots.
When I set the pcie mode to 16x in bios the black slots work, if I set 8x8 (or any other mode, 8x4x4, 4x4x8 or 4x4x4) the cards in the grey slots work.
The option for 4G decode is active and I have tried alot of different settings for pcie.

Anyone else have had this problem?
For me, even 4x4x4x4 would be enough, even if 8x8x8x8 would be nicer.
 

e97

Active Member
Jun 3, 2015
274
135
43
I got my x79z-vb10 the other day and sat it up yesterday.
It seems to be working, but I can't figure out how to get all four pcie x16 to work at the same time. I've hooked up an E5-2650v2 CPU, 64gb ddr3-ecc and a basic gpu. When I add a 10Gbps nic and two m1015 cards I can only get two cards to work, either the cards in the grey slots or the cards in the black slots.
When I set the pcie mode to 16x in bios the black slots work, if I set 8x8 (or any other mode, 8x4x4, 4x4x8 or 4x4x4) the cards in the grey slots work.
The option for 4G decode is active and I have tried alot of different settings for pcie.

Anyone else have had this problem?
For me, even 4x4x4x4 would be enough, even if 8x8x8x8 would be nicer.
finally got around to grabbing a a couple GPUs. There doesn't seem to be a way to get all the PCI-E x16 slots working.

Either 2 black, or 1 grey 1 black or 2 grey will work - so they are all connected.

Mfg says 2 x PCI-E x16 and 3x PCI-E x1 will work so 5 PCI-E slots in total simultaneously.

Here's the block diagram:

x79z b10.png

I also tried disabling the South Bridge (PCH) pci-e to see if I could get at least x1 on the other two pcie-x16 slots but no dice.

Since all the slots are connected x8/x8/x8/x8 should be possible.. I'm going to try manual resource allocation next.

edit: unless the hardware routing only switches the first 8 lanes to each slot then we might be out of luck.. I'm starting to think this is the case

edit^2: Wonder if the russian overclockers know anything: China x79/c602 разгон
 
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wildpig1234

Well-Known Member
Aug 22, 2016
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i ordered one of those x79 with the 2 pcie 16 and 2 pcie 8 and 3 pcie 1. still waiting for it. the status of shipping hasn't changed. i am wondering if it will even make it here. might have to ask for refund. wondering if it's even worth getting it if you can't even get the pcie slots properly working.....
 

saivert

Member
Nov 2, 2015
123
13
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Norway
How come it is only X79 though? Did some factory end up buying way too many of these chips back in the day? All these boards are recently manufactured. I know why they make them (to cash in on the influx of 2nd hand LGA2011 CPUs) but to have seemingly endless supply of EOL chipsets.

Also I understand for some it is just a hobby, but all considering I think it would be a waste of money and time to jump on this. For about $300 (which was thrown around here as a avg. total system cost) there are many alternatives if all you want is a basic computer. To keep costs down you would have to pair these with low clock Xeons or even ones with low core count.
 
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