<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[7900xtx 如何刷 bios?]]></title><description><![CDATA[<p dir="auto">两张 7900xtx 搞 P2P真是一波三折...测试发现一张卡是gen3x8, 一张卡却是gen1x8; 各种组合都检查过了, 就是卡不同, 链路速率就不同. 对比了下两张卡, 好像只有 vbios 不同:</p>
<pre><code>项目              card #2（闲鱼二手）                 card #1（京东一手）

型号              Sapphire PULSE RX 7900 XTX      Sapphire PULSE RX 7900 XTX
Subsystem         1da2:471e                       1da2:471e
PCI revision      rev c8                          rev c8

ATOM BIOS ID      113-3E4710U-O4O                 113-3E4710U-O54
build             00044266                        00089350
BIOS version      022.001.002.010.000001          022.001.002.034.000001
日期                         2022-11-29                      2024-01-16

链路                          Gen1 x8                         Gen3 x8
</code></pre>
<p dir="auto">现在考虑要不要把二手卡vbios刷一下?</p>
]]></description><link>https://lcz.me/topic/1827</link><generator>RSS for Node</generator><lastBuildDate>Fri, 23 Oct 2026 07:40:27 GMT</lastBuildDate><atom:link href="https://lcz.me/topic/1827.rss" rel="self" type="application/rss+xml"/><pubDate>Sun, 20 Sep 2026 02:10:54 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 07:53:21 GMT]]></title><description><![CDATA[<blockquote>
<p dir="auto">laobenxiong <a href="/post/19464">说</a>:</p>
<blockquote>
<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/williamlouis" aria-label="Profile: williamlouis">@<bdi>williamlouis</bdi></a> <a href="/post/19458">说</a>:</p>
<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/laobenxiong" aria-label="Profile: laobenxiong">@<bdi>laobenxiong</bdi></a> 刚发现。看了小特的回复。<br />
你的主板支持吗？不要光看显卡。</p>
</blockquote>
<p dir="auto">retrain 可以到 gen2; 压力下链接速率不变. 不过发现一个更奇怪的现象, 可能是 rebar 修改内核留下的:</p>
</blockquote>
<p dir="auto"><img src="https://upload.lcz.me/uploads/c55b683d-3911-44b6-b8d7-81e84af2ad9e.jpeg" alt="f3226dc1-3dca-4e49-90c8-cb6c0ef04361-image.jpeg" class="img-markdown  img-fluid" /></p>
<blockquote>
<p dir="auto">让 AI 看看再说.</p>
</blockquote>
<p dir="auto">这张 jd 卡功耗显示的问题, 看着是的 vbios 的 bug.<br />
<img src="https://upload.lcz.me/uploads/76811d5e-2fec-44d4-9bb9-2213be72879e.jpeg" alt="12feccd6-6c68-4a66-a486-2a6e5826cc39-image.jpeg" class="img-markdown  img-fluid" /></p>
<p dir="auto"><img src="https://upload.lcz.me/uploads/10163b85-5028-4cae-b5a5-6c5ae98278a6.jpeg" alt="25f77661-394a-4691-81af-8d7d86d8e46b-image.jpeg" class="img-markdown  img-fluid" /></p>
]]></description><link>https://lcz.me/post/19509</link><guid isPermaLink="true">https://lcz.me/post/19509</guid><dc:creator><![CDATA[laobenxiong]]></dc:creator><pubDate>Sun, 20 Sep 2026 07:53:21 GMT</pubDate></item><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 04:35:44 GMT]]></title><description><![CDATA[<blockquote>
<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/williamlouis" aria-label="Profile: williamlouis">@<bdi>williamlouis</bdi></a> <a href="/post/19458">说</a>:</p>
<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/laobenxiong" aria-label="Profile: laobenxiong">@<bdi>laobenxiong</bdi></a> 刚发现。看了小特的回复。<br />
你的主板支持吗？不要光看显卡。</p>
</blockquote>
<p dir="auto">retrain 可以到 gen2; 压力下链接速率不变. 不过发现一个更奇怪的现象, 可能是 rebar 修改内核留下的:</p>
<p dir="auto"><img src="https://upload.lcz.me/uploads/c55b683d-3911-44b6-b8d7-81e84af2ad9e.jpeg" alt="f3226dc1-3dca-4e49-90c8-cb6c0ef04361-image.jpeg" class="img-markdown  img-fluid" /></p>
<p dir="auto">让 AI 看看再说.</p>
]]></description><link>https://lcz.me/post/19464</link><guid isPermaLink="true">https://lcz.me/post/19464</guid><dc:creator><![CDATA[laobenxiong]]></dc:creator><pubDate>Sun, 20 Sep 2026 04:35:44 GMT</pubDate></item><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 04:10:50 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/laobenxiong" aria-label="Profile: laobenxiong">@<bdi>laobenxiong</bdi></a> 刚发现。看了小特的回复。<br />
你的主板支持吗？不要光看显卡。</p>
]]></description><link>https://lcz.me/post/19458</link><guid isPermaLink="true">https://lcz.me/post/19458</guid><dc:creator><![CDATA[williamlouis]]></dc:creator><pubDate>Sun, 20 Sep 2026 04:10:50 GMT</pubDate></item><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 04:02:42 GMT]]></title><description><![CDATA[<p dir="auto">刷 VBIOS 大概率解决不了 Gen1 x8 —— 链路速率由 PCIe 链路训练决定，线材/坞/接触/ASPM 比 VBIOS 更可疑。先做这几步，能区分是卡还是链路：</p>
<ul>
<li><code>lspci -vv</code> 分别看两张卡的 LnkCap（最高支持）和 LnkSta（当前协商）。LnkCap 是 Gen4 x16、LnkSta 掉到 Gen1，就是训练/信号问题，不是卡规格。</li>
<li>两张卡对调 OCuLink 线/坞口/槽位再测：问题跟着线走 = 线/坞的问题；固定跟着某张卡 = 卡本身。</li>
<li>看 dmesg 有没有 link training / AER / correctable error；再确认 ASPM 有没有开——部分平台空闲时会把链路降到 Gen1，负载下会升回去。</li>
<li>A 卡不看 nvidia-smi：用 <code>pp_dpm_pcie</code> 或在跑 P2P 带宽测试的压力下看 <code>lspci</code> 是否升到 Gen3。</li>
</ul>
<p dir="auto">只有确认是 VBIOS 已知 bug 才考虑刷，而且 7900XTX 双卡 P2P 在消费级平台本身支持有限，刷 BIOS 的风险远大于收益。</p>
]]></description><link>https://lcz.me/post/19452</link><guid isPermaLink="true">https://lcz.me/post/19452</guid><dc:creator><![CDATA[Xiaote]]></dc:creator><pubDate>Sun, 20 Sep 2026 04:02:42 GMT</pubDate></item><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 03:50:29 GMT]]></title><description><![CDATA[<p dir="auto">态度友好的和官方协商。帮你升级下vbios。<br />
如果友好协商失败。直接报修。<br />
问题：直接描述即可。</p>
]]></description><link>https://lcz.me/post/19443</link><guid isPermaLink="true">https://lcz.me/post/19443</guid><dc:creator><![CDATA[williamlouis]]></dc:creator><pubDate>Sun, 20 Sep 2026 03:50:29 GMT</pubDate></item><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 03:27:30 GMT]]></title><description><![CDATA[<blockquote>
<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/williamlouis" aria-label="Profile: williamlouis">@<bdi>williamlouis</bdi></a> <a href="/post/19430">说</a>:</p>
<p dir="auto">刷 Vbios 和刷主板 BIOS 是不一样的。不建议新手操作。<br />
可联系厂家操作。<br />
刷砖没报修！</p>
</blockquote>
<p dir="auto">嗯嗯，还没动手。</p>
]]></description><link>https://lcz.me/post/19434</link><guid isPermaLink="true">https://lcz.me/post/19434</guid><dc:creator><![CDATA[laobenxiong]]></dc:creator><pubDate>Sun, 20 Sep 2026 03:27:30 GMT</pubDate></item><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 03:47:45 GMT]]></title><description><![CDATA[<p dir="auto">刷 Vbios 和刷主板 BIOS 是不一样的。不建议新手操作。<br />
可联系厂家操作。<br />
刷砖没保修！</p>
]]></description><link>https://lcz.me/post/19430</link><guid isPermaLink="true">https://lcz.me/post/19430</guid><dc:creator><![CDATA[williamlouis]]></dc:creator><pubDate>Sun, 20 Sep 2026 03:47:45 GMT</pubDate></item><item><title><![CDATA[Reply to 7900xtx 如何刷 bios? on Sun, 20 Sep 2026 03:25:11 GMT]]></title><description><![CDATA[<p dir="auto">从 <code>https://www.techpowerup.com/download/ati-atiflash/</code> 下载了 <code>amdvbflash.exe</code>. 在 win11 上通过oculink分别读两张卡的信息。如下：</p>
<ol>
<li>京东一手</li>
</ol>
<pre><code>AMD IFWI Flasher Tool Version 5.0.874.0-External. Copyright漏 2020-2025 Advanced Micro Devices, Inc. All rights reserved.

Detecting AMD GPU/APU. Please wait...

Adapter 0 (0x0000:03:00.0)
    ASIC Family                   Navi31
    Flash Type                    IS25WP016D
    Partition Type                Partition A
    Product Name                  EXT-89683                                                                   
    Bios Config File              NAVI31.bin  
    Bios P/N                      113-3E4710U-O54
    Bios Version                  022.001.002.034.000001
    Bios Date                     01/16/24 03:58:00
    IFWI SKU Type                 Production

Image 0 -- Offset 0x0000
__________________
  ROM header contents:
    Signature                     0xaa55
    PCIR Offset                   0x03bc
  PCI Data Structure:
    Signature                     PCIR
    Vendor ID                     0x1002
    Device ID                     0x744c
    PCI Revision                  0x00
    Image Size                    0xe200
    Code Revision                 0x1601
    Indicator                     0x00     (Not Last Image)
    Code Type                     0x00     (Intel IA-32, PC-AT compatible)
    Legacy BIOS File Name         NAVI31.bin  
    Legacy BIOS Part Number       113-3E4710U-O54
    Legacy BIOS Build Number      00089350
    Legacy BIOS Change List       00000000
    Binary BIOS Identifier (IDTF) 0x1b0027bb

Image 1 -- Offset 0xe200
__________________
    Signature                     0xaa55
    PCIR Offset                   0x001c
  PCI Data Structure:
    Signature                     PCIR
    Vendor ID                     0x1002
    Device ID                     0x744c
    PCI Revision                  0x00
    Image Size                    0xd400
    Code Revision                 0x0000
    Indicator                     0x80     (Last Image)
    Code Type                     0x03     (EFI)
    Image Size                    0x00000ef1
    Compression Type              0x80     (Compressed)
    MachineType                   0x8664   (X64 Machine Type)
    Subsystem                     0x0b     (EFI Boot Service Driver)
    EFI Image Offset              0x60     (abs: 0xe260)
  UEFI IDs from EFI_PCI_EXPANSION_ROM_HEADER
    UEFI Source Revision          GOP AMD REV: 000.000.000.022.001
    UEFI Source Change List       0000
    UEFI BIOS Build Number        89350
  GOP Driver Info:
    Machine Type Code             0x8664   (AMD64 (K8))
    Authenticode Signed           true
    GOP Image Size                0x14780   (81KB)
    Driver Name                   AMD GOP X64 Rel Driver Rev.3.7.13.Jul 21 2023.17:04:05
    UEFI Major Revision           0x03
    UEFI Minor Revision           0x07
    UEFI Fix Revision             0x0d
    Legacy Major Version          0x00
    Legacy Minor Version          0x00
    GOP AMD Build                 
    GOP AMD CL                    
    GOP BIOS Identifier (IDTF)    0xdeadbeef
    Driver Carries legacy tables  false


</code></pre>
<ol start="2">
<li>闲鱼二手</li>
</ol>
<pre><code>AMD IFWI Flasher Tool Version 5.0.874.0-External. Copyright漏 2020-2025 Advanced Micro Devices, Inc. All rights reserved.

Detecting AMD GPU/APU. Please wait...

Adapter 0 (0x0000:03:00.0)
    ASIC Family                   Navi31
    Flash Type                    GD25LQ16E
    Partition Type                Partition A
    Product Name                  EXT-78412                                                                   
    Bios Config File              NAVI31.bin  
    Bios P/N                      113-3E4710U-O4O
    Bios Version                  022.001.002.010.000001
    Bios Date                     11/29/22 02:11:38
    IFWI SKU Type                 Unknown

Image 0 -- Offset 0x0000
__________________
  ROM header contents:
    Signature                     0xaa55
    PCIR Offset                   0x03bc
  PCI Data Structure:
    Signature                     PCIR
    Vendor ID                     0x1002
    Device ID                     0x744c
    PCI Revision                  0x00
    Image Size                    0xe200
    Code Revision                 0x1601
    Indicator                     0x00     (Not Last Image)
    Code Type                     0x00     (Intel IA-32, PC-AT compatible)
    Legacy BIOS File Name         NAVI31.bin  
    Legacy BIOS Part Number       113-3E4710U-O4O
    Legacy BIOS Build Number      00044266
    Legacy BIOS Change List       00000000
    Binary BIOS Identifier (IDTF) 0xf9e533dc

Image 1 -- Offset 0xe200
__________________
    Signature                     0xaa55
    PCIR Offset                   0x001c
  PCI Data Structure:
    Signature                     PCIR
    Vendor ID                     0x1002
    Device ID                     0x744c
    PCI Revision                  0x00
    Image Size                    0xd000
    Code Revision                 0x0000
    Indicator                     0x80     (Last Image)
    Code Type                     0x03     (EFI)
    Image Size                    0x00000ef1
    Compression Type              0x80     (Compressed)
    MachineType                   0x8664   (X64 Machine Type)
    Subsystem                     0x0b     (EFI Boot Service Driver)
    EFI Image Offset              0x60     (abs: 0xe260)
  UEFI IDs from EFI_PCI_EXPANSION_ROM_HEADER
    UEFI Source Revision          GOP AMD REV: 000.000.000.022.001
    UEFI Source Change List       0000
    UEFI BIOS Build Number        44266
  GOP Driver Info:
    Machine Type Code             0x8664   (AMD64 (K8))
    Authenticode Signed           true
    GOP Image Size                0x14160   (80KB)
    Driver Name                   AMD GOP X64 Rel Driver Rev.3.6.0.Sep 29 2022.23:42:

</code></pre>
<p dir="auto">不过在 oculink 下两张卡都是 gen4x4.</p>
]]></description><link>https://lcz.me/post/19428</link><guid isPermaLink="true">https://lcz.me/post/19428</guid><dc:creator><![CDATA[laobenxiong]]></dc:creator><pubDate>Sun, 20 Sep 2026 03:25:11 GMT</pubDate></item></channel></rss>