Need an assistance with this ASUS R9 270 2GB

[dzdesigner]

Hello forum members.
Bought this card for 7 euros, which is an ASUS R9 270 Direct CU II OC 2 GB
The card post into windows and every thing, but once you install the drivers it crashes and the PC just freezes, in this state the Memory chips get very hot along with the whole VCore bloc, everything is irresponsive even the reset button (at least not for almost 15 sec after pushing it and when that happens, the PC doesn't reboot, no, it shut down and than reboots !!).
With the help of a multimeter, I found at least 5 shorted resistors close to the Vcore main controller (removed the top three on the picture and all of them gives less than 0.9 ohm).
-Is it normal for a card to function with all this short-circuits?! am I missing something here?
-Can someone provides me with a diagram of this card so I can know the values of those components?!

 

[Nike_486DX]

These are 0 ohm resistors, which is absolutely normal. If your card had a short circuit, your power supply would trigger SCP immediately.
As you figured out, the vram chips get "very hot" which could mean a vram failure.
For now try to mod the vbios with lower core and vram clocks, the tool you need is VBE7 which is published here on tpu. https://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/. (R9 270X is exactly same card as HD 7870 GHz edition). Do -200mhz on all the values, dont touch the voltages... makle sure to backup the original bios file untouched, so if you ness something up you could just flash it back safely. The tool for flashing is the classic Amd Bios flash https://www.techpowerup.com/download/ati-atiflash/. You dont need to have video drivers installed for this.

If it continues crashing, then you would have to change vram chips, the costs would escalate quickly tho.

 

[dzdesigner]

These are 0 ohm resistors, which is absolutely normal. If your card had a short circuit, your power supply would trigger SCP immediately.
As you figured out, the vram chips get "very hot" which could mean a vram failure.
For now try to mod the vbios with lower core and vram clocks, the tool you need is VBE7 which is published here on tpu. https://www.techpowerup.com/forums/threads/vbe7-vbios-editor-for-radeon-hd-7000-series-cards.189089/. (R9 270X is exactly same card as HD 7870 GHz edition). Do -200mhz on all the values, dont touch the voltages... makle sure to backup the original bios file untouched, so if you ness something up you could just flash it back safely. The tool for flashing is the classic Amd Bios flash https://www.techpowerup.com/download/ati-atiflash/. You dont need to have video drivers installed for this.

If it continues crashing, then you would have to change vram chips, the costs would escalate quickly tho.

Thank you for replying.
-I've tested the resistors in question in continuity mode; they all beeps. is that normal?
-I've also downloaded the VBE7 and opened the existing bios dumped from the card, found out something interesting, VBE7 shows the memory as "Hynix H5GC2H24BFR" while it's "H5GQ2H24AFR" on the board. (I guess the previous owner flashed the wrong bios in an attempt to fix the card)

So I downloaded this one (H5GQ2H24AFR_CURACAO), modified it, made all the clocks similar to the boot one(300mhz gpu and 150mhz vram), and put it to the test

Asus R9 270 VBIOS

2048 MB GDDR5, 975 MHz GPU, 1400 MHz Memory

www.techpowerup.com

The card still crashes at windows boot, with a little different behavior, the signal on the monitor gone for one second before it comeback and then a blue screen of death.

 

[pavle]

Perhaps try this BIOS, it's the above ASUS R9-270 adapted to HD 7850 clocks.

 

[dzdesigner]

Perhaps try this BIOS, it's the above ASUS R9-270 adapted to HD 7850 clocks.

Thank you, I will try it and feed back later