TrailLeadr
1 Copper

Vista only reporting single core on Mobile Sempron 3500+

 

Hi, I have an annoying little problem I’m hoping someone can help with.  I’m going to be as thorough as possible, so as to save everyone the trouble of suggestions I’ve already tried.

 

I have an Inspiron 1501 with the Mobile Sempron 3500+.  The problem is that Windows vista is only reporting this processor as a single core.

When I originally got this laptop almost 2 years ago it came with vista, and with only 512mb of memory I found myself unwilling to give vista a good trial run.  So I downgraded to XP within 2 days of ownership.  I never had a problem with XP, but I decided with more memory and recent SP’s vista might be worth trying now.

 I formatted, and repartitioned the drive, and installed vista.  Vista has been running….kinda ok.  Not really impressed, but I noticed that it’s only reporting a single core.  AMD claims the Mobile Sempron is a dual core, the laptop was plastered with stickers stating dual core, and so on. 

 

I’ve checked the web, and found solutions ranging from deleting the old HAL file, and replacing it, to setting detect HAL in MSCONFIG.  I have tried to detect HAL in MSCONFIG, and it doesn't seem to make a difference.  I haven’t tried deleting the current HAL, since I did not upgrade, and the build should have been specific to this machine at the time of install.  I have also tried uninstalling the current processor in the device manager, and restarting so it could detect the current CPU, and this also did not work.  I also only have 1 window for CPU performance, in the task manager and there's no option available to view the cores individually.

 In the device manager I do NOT see more than 1 processor listed in the processor group like many other people who have a similar problem do.

 

 

So, I’m wondering….Does anyone have any ideas for me?  I’d hate to think I bought a laptop that I’m only getting half the benefits from.

Thanks in advance   🙂

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5 Replies
Davet50
5 Iridium

Re: Vista only reporting single core on Mobile Sempron 3500+

Did you check in the Bios to see if there is a multicore setting? perhaps it might be turned off

 Home Built Sandy Bridge P8P67 i7 2600k @ 4.5 GHz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
Dell Studio XPS 1645  Window 10 Pro

Forum member since 2003

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TrailLeadr
1 Copper

Re: Vista only reporting single core on Mobile Sempron 3500+

The only BIOS entry I could find simply describes the CPU as an AMD Sempron 3500+.  It's not editable.  I've also taken the opportunity to update the bios to the current version.  

I'm currently still showing only 1 core in Vista.  Thanks for the suggestion though  🙂  

 

 

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kirkd
4 Ruthenium

Re: Vista only reporting single core on Mobile Sempron 3500+

This processor is a SINGLE core unit.

XPS M1530, Win 10 CU Pro 32-bit
Inspiron E1705, Win 10 CU Pro 32-bit
Dimension 9100, Win 10 AU Pro 32 bit
Inspiron 660, Win 10 CU 64 bit
Inspiron 3668, Win 10 CU 64 bit
Asus T100 Tablet, Windows 10 CU 32 bit

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eskymi
3 Cadmium

Re: Vista only reporting single core on Mobile Sempron 3500+

I'm with Kirkd on this.  I thought that this particular processor was a single core unit. 

2  XPS 420's, Quad 2.4ghz, 8800GT and 9800GTX, 3gigs RAM (Vista Home)

2 Inspiron 1720's, 2.0 and 2.5 gig processors, 2 and 4 gigs RAM, 8400GM and 8600GT cards (Vista Home and Ultimate)

1 E1705, 2.0 processor, 2 gigs RAM 7900GS. (Vista Home)

2 Mini 9's, Black and Cherry Red......(Windows XP) Love The Mini!!!!!

 

 

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Davet50
5 Iridium

Re: Vista only reporting single core on Mobile Sempron 3500+

Yep you both are right see HERE

 Home Built Sandy Bridge P8P67 i7 2600k @ 4.5 GHz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
Dell Studio XPS 1645  Window 10 Pro

Forum member since 2003

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