1 Rookie
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8 Posts
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766
April 18th, 2025 17:13
PCI Bus : Driver Error
PCI Bus : Driver Error
Error code list
- PCI Bus - Functional Tests : DW-31
Fan : Driver Error
Error code list
- Fans - Functional Tests : DW-31
No Events found!
lmacri
3 Apprentice
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1.6K Posts
1
April 22nd, 2025 11:45
Hi KeokiXPS:
See my 12-Jul-2022 post in mike2084's Fail Support Assists PCI Bus - Functional Tests - D0701. I suspect your DW-31 error is just another one of these harmless "for information only" Dxxxx and Wxxxx analytical notations that Dell keeps promising to remove in a future version of SupportAssist. These notations usually occur when a hardware driver is updated and creates a registry entry that is "not as per industry standard", which is subsequently flagged during a SupportAssist hardware scan.
As Dell employee DELL_Chris M stated <here> in mike2084's topic, if your ePSA (enhanced Pre-boot System Assessment) diagnostic Quick Test (and in your case, an advanced diagnostic test of your fan and PCIe bus) doesn't detect any issues it's likely safe to ignore this SupportAssist notation. The support article How to Run Dell Preboot Diagnostics and Hardware Tests on Your Dell Computer and companion video at https://www.youtube.com/watch?v=inYLxW2_xKo explain how to start your ePSA diagnostics (i.e., restart your computer, repeatedly tap the F12 key as soon as the Dell logo appears, and choose Diagnostics from the boot menu screen). If this doesn't display your boot menu then restart your computer and try again, quickly tapping the F12 key about 2 times every second.
If you require further assistance post back and let us know your Dell computer model, your Windows operating system [open a Run dialog box (Windows key + R) and enter winver to find the version and OS build number] and BIOS version. To find your current BIOS version open a Run dialog box, enter msinfo32 to open your System Information, and look for the field named "BIOS Version / Date" in the summary. It would also be helpful to know if your Dell service warranty has expired yet.
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Dell Inspiron 15 5584 * 64-bit Win 10 Pro v22H2 build 19045.5737 * Firefox v137.0.2 * Microsoft Defender v4.18.25030.2-1.1.25030.1 * Malwarebytes Premium v5.2.11.183-131.0.5227 * Macrium Reflect Free v8.0.7783 * My Dell v2.2.6.0 * Fusion Service 2.2.14.0
RetPC
1 Rookie
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1 Message
2
April 19th, 2025 15:42
I started receiving the same error message after running SupportAssist on 04/17/25.
KeokiXPS
1 Rookie
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8 Posts
1
April 19th, 2025 19:06
@RetPC
That's exactly what happened to me. I attempted to open the BIOS to run the troubleshooter but unable with my wireless keyboard. I tried the F12 while starting as well as the Fn but it won't boot into BIOS. Wonder if this is happening to everyone as well.
SUB666
1 Rookie
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1 Message
1
May 14th, 2025 03:40
i had and still have the same issue... you guys get blue screen stop codes too? they've replaced my motherboard three times i think it was...
jangrip
1 Rookie
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1 Message
0
June 13th, 2025 18:39
@SUB666 Yes, I have all the same issues with my desk top. Blue screen errors and when running support assist get these errors on a consistant basis. Dell support has no resultion for this
PCI Bus : Driver Error
Fan : Driver Error