You are not registered yet. Please click here to register!
[Techpowerup.com] A8-3850 Has Ineffective BClk Multiplier - i4memory.com - different look at memory
Tags Register Blogs FAQ Members List Calendar Mark Forums Read

Notices

Reply
 
Thread Tools
Old 07-07-2011, 11:50 PM   #1
News
News Hound
News's PC Specs
 
Join Date: May 19 2008
Posts: 41,693
[Techpowerup.com] A8-3850 Has Ineffective BClk Multiplier

"Empty Overclocking" is a term we just made up, to describe unreal overclocking headroom that does not translate into any performance improvements, with AMD's A8-3850 APU. This chip has an upwards unlocked base clock (BClk) multipler. Setting it above the factory default will increase clock speed (at least the clock speed that's reported to you), but that "increased" clock speed will not translate to any performance improvements at all.

This means that the multiplier is ineffective in driving the clock above its maximum default value. So the next time you see screenshots screaming something like "6.00 GHz" on air with the base clock at its default 100 MHz, don't be fooled, trust only those overclocking feats in which the multiplier is set at the maximum default (29.0x) or lesser, and in which the overclocker has increased the base clock among other things.



Update: It seems like AMD is aware of the issue, and forewarned reviewers about it. Apparently a glitch in the BIOS code allows the users to "set" higher multiplier values than the chip can respond to, even as the chip doesn't run at those values. Utilities like CPU-Z read those BIOS-set values and display the effective clock speed, even as the actual clock speed doesn't budge. AMD recommends only the base clock increase method for overclocking. As always, AMD warned that overclocked chips are not covered by product warranties. Perhaps future BIOS updates by motherboard vendors will fix this bug.

Source: OCWorkbench, Image Courtesy Newegg.com

More...
News is offline   Reply With Quote
Reply

Bookmarks

Tags
bclk, ineffective, multiplier, techpowerupcom


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools


Similar Threads for: [Techpowerup.com] A8-3850 Has Ineffective BClk Multiplier
Thread Thread Starter Forum Replies Last Post
[Techpowerup.com] (PR) HighPoint Launches Industry's 1st PCI-E 2.0 x16 SATA Port Multiplier HBA Series News Reviews & News Online 0 15-12-2010 05:10 PM
[Techpowerup.com] Core i5 to Feature Lower QPI Multiplier News Reviews & News Online 0 27-04-2009 07:40 AM
[Techpowerup.com] Intel Decides to Unlock the Memory Multiplier of its Core i7-920 an News Reviews & News Online 2 22-09-2008 11:37 AM
[Techpowerup.com] RV730 Tested, Performs Close to Radeon HD 3850 News Reviews & News Online 0 03-09-2008 07:26 PM
AMD64 Overclocking Guide (07/11/06) eva2000 General AMD Motherboards / CPU 7 02-11-2006 04:42 PM


All times are GMT +11. The time now is 10:16 PM.

no new posts