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I recently tried undervolting my HP Probook 450 G5 with an Intel Core I7-8550U, but couldn’t

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System Name Lynni PS \ Lenowo TwinkPad L14 G2
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Man can you share how did you roll back your bios? I have probook 470 G5 thats having same issue as you and HP wount let me downgrade to old bios. Thanks.

A lot of bioses have a option witten the bios where it shows "bios roll back" this option is usually disabled you need to enable this.

This is how it is on my Lenovo ThinkPad T480 and desktop motherboard Asus Prime X670-P WiFi.
 

Lessleep

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A lot of bioses have a option witten the bios where it shows "bios roll back" this option is usually disabled you need to enable this.

This is how it is on my Lenovo ThinkPad T480 and desktop motherboard Asus Prime X670-P WiFi.
Yes for HP there is option that unrestricted to older bios is selected, but after trying to roll back showing error bios version is locked by admin…
 
Joined
Aug 29, 2005
Messages
7,162 (1.04/day)
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Stuck somewhere in the 80's Jpop era....
System Name Lynni PS \ Lenowo TwinkPad L14 G2
Processor AMD Ryzen 7 7700 Raphael \ i5-1135G7 Tiger Lake-U
Motherboard ASRock B650M PG Riptide Bios v. 2.02 AMD AGESA 1.1.0.0 \ Lenowo BDPLANAR Bios 1.68
Cooling Noctua NH-D15 Chromax.Black (Only middle fan) \ Lenowo C-267C-2
Memory G.Skill Flare X5 2x16GB DDR5 6000MHZ CL36-36-36-96 AMD EXPO \ Willk Elektronik 2x16GB 2666MHZ CL17
Video Card(s) Asus GeForce RTX™ 4070 Dual OC GPU: 2325-2355 MEM: 1462| Intel® Iris® Xe Graphics
Storage Gigabyte M30 1TB|Sabrent Rocket 2TB| HDD: 10TB|1TB \ WD RED SN700 1TB
Display(s) LG UltraGear 27GP850-B 1440p@165Hz | LG 48CX OLED 4K HDR | Innolux 14" 1080p
Case Asus Prime AP201 White Mesh | Lenowo L14 G2 chassis
Audio Device(s) Steelseries Arctis Pro Wireless
Power Supply Be Quiet! Pure Power 12 M 750W Goldie | 65W
Mouse Logitech G305 Lightspeedy Wireless | Lenowo TouchPad & Logitech G305
Keyboard Ducky One 3 Daybreak Fullsize | L14 G2 UK Lumi
Software Win11 Pro 23H2 UK | Arch (Fan)
Benchmark Scores 3DMARK: https://www.3dmark.com/3dm/89434432? GPU-Z: https://www.techpowerup.com/gpuz/details/v3zbr
Yes for HP there is option that unrestricted to older bios is selected, but after trying to roll back showing error bios version is locked by admin…

Interesting is there a bios password or another password when the laptop is booting?

If so you need to remove all this since they are blocking your flash.
 
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