2 GB to 4 GB upgrade issue

Quadraphonic · 02-04-2008, 12:30 AM

I have an HP DV9548US laptop, which came with 2 GB DDR2 5300 533(?) MHz RAM. On HP.com it says it supports up to 2 GB, but just to try it out I got a Kingston 4 GB set (2 x 2GB sticks). The new set is also DDR2 5300 but runs at 677 MHz. The computer came with Windows Vista (32 bit), which naturally doesn't support the full 4 GB. Surprisingly though, it loaded and recognized it as 3 GB RAM, which is fine with me.

Here's where it gets funny. I started the Windows Vista System Ratings, to run a benchmark. The factory RAM scored 4.5, but the new ram only scored 2.7. I pulled one of the sticks, which reduced it to 2 GB, and it still scored 2.7.

What would cause the new and faster ram to run so slow?

**blackduck30** · 02-04-2008, 03:42 AM

not 100% sure but could be a latency issue, maybe the new ram has a higher latency than the old stuff, CL5 as opposed to a CL4

02-04-2008, 12:30 AM	#1 (permalink)
Quadraphonic Registered User Join Date: Feb 2008 Posts: 1 OS: Windows Vista Home Premium 32bit	2 GB to 4 GB upgrade issue I have an HP DV9548US laptop, which came with 2 GB DDR2 5300 533(?) MHz RAM. On HP.com it says it supports up to 2 GB, but just to try it out I got a Kingston 4 GB set (2 x 2GB sticks). The new set is also DDR2 5300 but runs at 677 MHz. The computer came with Windows Vista (32 bit), which naturally doesn't support the full 4 GB. Surprisingly though, it loaded and recognized it as 3 GB RAM, which is fine with me. Here's where it gets funny. I started the Windows Vista System Ratings, to run a benchmark. The factory RAM scored 4.5, but the new ram only scored 2.7. I pulled one of the sticks, which reduced it to 2 GB, and it still scored 2.7. What would cause the new and faster ram to run so slow?

02-04-2008, 03:42 AM	#2 (permalink)
blackduck30 Moderator Join Date: Sep 2004 Location: Wollongong/Australia Posts: 4,232 OS: XP pro SP3/Vista Ultimate My System	Re: 2 GB to 4 GB upgrade issue not 100% sure but could be a latency issue, maybe the new ram has a higher latency than the old stuff, CL5 as opposed to a CL4 __________________ Blackduck30 Time is like money and milk, It's always running out Any Donations Help Keep TSF Free For All